The North American species of Neuroterus and their galls, Beutenmuller

Abdomen black, smooth dark brown and distinct.. Scutellum small, black,punctate, W'OOve at base broad and in the middle, abdomen small, black.Anterior and middle unifonn dull brown, POEl

Article X.- THE NORTHAMERICA~SPECIES OF NEUROTERUS

AND 'l'HEIR GALLS.

By WILLIA2\f BEUTENMULLER.

PLATES VIII-XIII.

The paper constitut('s the seventh installment of a series of papers on North American and their which have been lished me in the Bulletin of the American Museum of Natural

Beurotertlll

1886,

1869, p 333;

Nellroterull HARTIG, Zeitsch fUr Ent., Vol II, 1840, p 18.'! l\1AYR, Gen

Vol X, 1003, p 151

SpathegasterHARTIG, Zeitsch fUr Ent., Vol.II,1840, p 186; MAYR, Gen Gallenb

3.7; AsHMEAD, Vol X, 1003, p.51

Ameristm Verh Zool.-Bot Gesell \Vien, Vol

Zool Reconl, 1869, p 322; MAYR, Gen Gallenb Cynip., 1881, 37

Jf(I1Ul!erlltjernia RADOSZKOWSKI, Bull Soc Nat Moscow, X}DClX,p.304; MAYS, Gen Gallenb 1881, p 37

Do,lic,lwlliroph.IU$ASH~IEAD,Trans Am Ent Soc Vol XIV, 1887, p 129;Vol X, 1003, p 151; DALLA TORRE, Cat Vol.II,1893, p 37

well rounded and with a distinct, broad, transverse groove at the base.Antennre 13-14-jointed in the fernsle, in the rnsle First and secondshort and stout, third joint very and slender, joints gra.dulally

~~ornilllgshorter Abdomen and in the small and with

and distinct Cubitus exllendin,g to or to the first cross-vein smooth,delicate Claws or toothed

Nel.lroterus

Neurotertlll batatus

quercus batatWIFITCH, 5th Nox Ins N Y Trans N.Y

Soc.,1858 (1859), p 810; THOMAS, Trans Ill Hort Soc., 1878 p.198; ARD,Bull 7, U S Ent Com., 1881, p 39; lith U S Ent Com., 1800, p 111

PACK-batatU8OSTEN SACKE:S, Ent Zeit Stettin, 1861, pp 410, 414; Proc.Vol I, 1861, p 71; PACKARD,5th U S Ent Com., 1890, p

Bulletin ATllericanMuseum of Natural

Illinois;

white oak

Abdomen

much than broad, and often covered

in summer and brown in winter

England and Middle States sou,tln'lal'd;

a glaucous

Habitat. Canada;

westward to Colorado

113; BASSETT, Proc Ent Soc Phila., Vol III, 1864, p 684; Can Ent., Vol

18n,p 121; Trans Ent Soc Lond., 1873, p xx

baialullOSTEN SACKEN, Proc Ent Soc Phila , Vol 1865, pp 340, 344,350,353

Neuroterull baiatullMAYR, Gl:'n Gallenb 1881, p 37; ASHMEAD, Trans

Am Ent Soc., Vol XII, 1885, p 296; ibid., Vol XIV, 1887, 132; Bull I, Col.BioI Assoc., 1890, p 38; BEUTENMCLLER, Bull Am Mus Nat Vol IV, 1892,

262, Xlll, 1; Am Mus Journ., Vol IV., 1904, p 107, 41; Ins Galls

N Y., 1904,p.21; 41; DALLA TORRE, Cat Vol II, 1893, p 40;BRODIE, Ann Forest Ontario, 1896, p 117, 3; DALLA TORRE and KIEFFER,Gen Ins Fam 1902, p 50; FELT, Ins Affect Park&Woodl Trees

1906, p 624

Female. Head black, mil'rolICOI)ica,lly

and mouth parts brown Antennre 16-JOlliltea,

folllowing om~s brown Thorax black,

smooth, mi,~rosc('pi(:all.yreticulated, with a few scattered

There are two annual of N euroteru<t batatu8. The first brood

second brood in from green The second brood OVi:DOi3its in the from 'which were Mr Bassett states

that he reared thousands of N euroteru8 batatu8 of both geloer'ations,

a series of years, and with the same results The

brood from the leaf was made up of both sexes in

numl)ers, while the brood from the late slimmer came out in the

as the leaves to appear, and were all females.

1l0xwsaBASSETT, Can Ent., Vol 1881, p 108

Neuroterus noxWsusl\L-\YR, Gen Gallenb 1881, p 37; ASHMEAD, Trans

471; Vol V, 1889, p 187; BEUTENMilLLER, Bull Am Mus Nat Hist.,

IV, 1892, p 262; Am Mus Joum., Vol IV, 1904, p 107, 42; Ins Galls Vicino

North A.merican N euroterus. 119

44; DALLAIns All

N Y., 1004, p 21, 42; DALLATORRE, Cat.nynl~:n.,Vol II, 1893,

Pk &Woodl Trees, 1006, p 624

Neuroterus noxWsaAsHMEAD, Trans Am Ent Soc., Vol XIV, 1887, p 132

a fine crackled surface grooves wanting Scutellum black,micrl>scop:ically wrinkled, with a curved groove at the base Abdomen black, smooth

dark brown and distinct Areolet small, but

to the first cross-vein 1.25to1.50mm

Male. Somewhat than the female Antennre l jointed, third joint

Vernal form. (Plate IX, 8) The is an enonnous de'vel,oprnerlt of themid-rib on the of the leaves Itis green, succulent and imlgular inThe blade of the leaf becomes dwarfed and curled, and after the mature theleaf becomes shri veled and dried

Habilat. New and Middle States westwardtoIowa

in

IlTI]Wln lind the second

This

from the

brood in Junefrom

Heuroteru con.imili. Bassett.

was made from one of the

Neuroterull con8imilill BASSE'M', Trans Am Ent.Soc.,Vol XXVI, 1000, p 335;DALLATORRE and KIEFFER, Gen Ins Fam 1902, p 50

Male. Head black, broader than the thorax Antennre

sidal grooves reduced to two short lines, at the scutellum Scutellum small, black,punctate, W'OOve at base broad and in the middle, abdomen small, black.Anterior and middle unifonn dull brown, POElteI1or

Areolet small Radial area open Lenj!;th, 1.50 mm

segments retracted within the first which is wide and POIilterior darker

GaU. (Plate X, 3.) On the young tenninal of white oak (QuerC'lUf

aborted buds and leaves Itis a fore-shortened andenlar~:edbranchlet andmeasures from about 4 to 12 mm in diameter

Hahilat. Connecticut ("raterllUry)

The of the

120 Bulldin American ]/lIsellm Va/ural XXrIU.

Female. almost smooth, brown-black, the antenna' and legs

ish Thorax ",;thout gloss wrinkled, and almost without SClllplture

GaU. (Plate XIII, 8.) On the of the twigs of post oak(Quercus minOT).

Irteglj!arly roundt'd or ovate with aborted leaves Hard andwith gray brown tint Inside are many larval chambers

Habitat. Dallas, Texas

RILEY, Am Ent., Vol III, 1880 p 1.53, 56

q. BASSETT,Am Nat., Vol XV, 1881, p 1·19

Neuroterus rileyi MAYR, Gen Gallenb Cynip., 1881, p 3i ASH~IE.'l.D, TraM

Am Ent Soc., Vol XII, 188.5, p 296; ibid.,Vol XIV, 188i, p DALLA TORRE,

Fam 1902, p 51: COOK, Proc Iowa Acad Sci., 1004, p.225; 29thGeol.&Nat Hist Indiana, 1904 (100S), p 837 fig 30

(NeurotcTus) rileyi PACKARD,5th F S Ent Com

Female. Head black, smooth llnd mandibles

Antennre short, olle and two dark amber, third yell\o'wis:h

with a few hairs Scutellum smooth, rounded \\;th a broad groove at the baS('

(Plate XI, 11) On the branches of young chestnut oak (Quercull

irregular in size and form from round like bodies" mm in diameter to a conflul'nt mass of about 25 mm inand 12 mm in diameter, containing manylarva~. The lar/l:l'f ones sometimes

DUIStlllll'-or encircle the twig arc covered with the bark of the branch and

inter-are of a denS(' cork-like substance When old alld are hard and

Habitat. Ohio; Illinois; Indiana: Missouri: Iowa

Bel'deluI11Ub.T, North American Neuro/crull. 121

Neuroterua Gillette.

Neuroterus "iyrum GILLE'ITE, 27th Mich., 1888, p 475, 'i:Vol V, 1889, p 218, 5; Proc Iowa Acad SeL, 1887-89 (1890), p 56;

ibid., Vol I, pt II, 1892, p 114

Neurotcrwl niger DALLA TORRE and KIEFFER, Gen Ins Fam

1902, p 51

Neliro/crus B.\88E'IT, Trans Am Ent Soc., Vol XXVI, 1900, p 332;

Female. Head, thorax and abdomen very dark, almost black Antenl1re

Seutel-polltelriolrly and without fovere brown, joints andveins brown Areolet distinct Radial area

ll-lale. Head dark brown Thorax dark brown Abdomen reddish

GaU. (Plate X, In numbers imbedded in the soft parts of the leaf

of burroak (QuerClIII and white oak (Quercm alba). Monothalamous.Rounded or blister-like bodies on both sides of the leaf, but somewhatmore on the upper side; on the under side it has a minute Diame-ter 1-1.75mID.

Prof.

of N.

are with Prof Gillette and in the A~:riculturl'llIowa The latter were sent to me for examination

Summers I fail to find any differences between the flies and

and N. and 1 consider them one and the samesp(~(,le'S.

of N. occur on burr oak and those of ;Y.

the second brood appears the latter

from formed the first brood in

latter reach late in and in SeliltemLler.

Neuroterus p&J~illil)au,a sp nov.

micl'(lBc1opicaJlly crackled, with a few scattered, whitish hairs Antennre

stout, second very stout, third and fourth joints and slender,

re-shorter and rather stout Thorax brown or almost black,mi,cfOllC(lpi()alllycmckled, and excavated at the hind margin Seutel-

wins brown

122 Bulletin A merieanJ[useum of Natural .<lW',

Male. Head and than the female, more rufous Antennre moreyelllo1wis:h brown,llllare also the 7.5 rom

Gall. (Plate X, 2.) In numbers on the leaves of swamp white oak

pro-on both sides of the leaf, and withoutIi on the under side

about 1 mm.; width about 75 mm

Habital. Bronx Park, New York

In

double

is somewhat similar to that of N.

on the under side The flies emerge

brooded.

NeuroteIUs howertomBassctt.

Nwrolerus hotl'ertoni BASSETT Trans Am Ent Soc., Vol XVII, 1890, p 90

Neuroieru8 howerlonUDALLA TORRE, Cat Vol II, 1893, p 42; DALLA

club-!'('cond l'horter and very stout, third and slender,re~oll.inillig

ones short All brown Thorax, scutellum and abdomen black or rufous,

Gall. (Plate XI, 6.) On the under side of the leaves of a of liveoak(QllerculI Monothalamous Rounded, thin-walled cells imbedded in theleaf and covered with a brown pubescence like the rest of the leaf They occur innumbers upon the leaf and are not crowded On the upper side of the leaf

Habitat. New Mexico

cutfrom one of the isde~~idedJly rufous It is one of the smallest known of Neuroferu,'J.

NeuroteIUs venucaIUm

quercull t'errucarumOSTEN SACKEN, Proc Ent Soc Phila., Vol.l, 1861, p.62

q t-errucaTum OSTEN SACKEN, Ent Zeit Stettin, 1861, pp 409, 412

~'eT'rucarum OSTEN SACKEN, Proc Ent Soc Phila., Vol IV, 1865, pp

340, 344, 348, 3li.5.

NeUTOlerulll.'erTucarum ASHMEAD, Trans Am Ent Soc., Vol XII, 1885, p 296;

ibid., Vol XIV, 1887, pp 128, 13li; DALLA TORRE, Cat Vol II, 1893,

Female. Black, mouth parts reddish, antennfe 13-jointed, somewhatincrassated towards the brownish, sometimes brownish black, towards the

not punctate, vrithout any grooves Abdomen and scutellum black and smooth

North American of ;Veuroteru8. 123

1.50 to 2.25

yelll01wh at Base of COXlP, middle of femora and tibire brown,

curved, almost Areolet rather ami distinct Cubitus slender, almOIltobsolete at the first cross-vein .75-1.2.5 mm

GuU. (Plate XI, 5.) In numbers on the under sides of the leaves of post

with a flat base, andisattached to the leaf a minute point

mIn.

Habitat. New York; New "VllShjn~;tol[l,D C south to Florida

Beuroterus minutissimus (Allfm!emt)

q minutill8'imaASHMEAD, Trans Am Ent Soc., Vol XII, 188.5, p vii

';veuroter'llll minutillllimU8ASHMEAD, Trans Am Ent Soc., Vol XII, 1885, p 296;

FtrI'TUllR. Black, smooth and but faint delicate reticulations

(Plate XI, Fig 4.) On the under sides of the leaves of live oak (Quercu8 virgi1Iiana). Monothalamous Globular and about the size of the head of an inseet

mOllll-like wool Diameter, 1.25 to 2.50 mm

Habitat. Florida

The very much resembles

occurs in numbers on the same leaf.

that of N. Verr'ltcarum. It

Beuroterus ftoccosus ll1C188,~lt) vll"'I"OJ'~~~- BASSETT, Can Ent., Vol XIII, 1881, p Ill

Am Ent Soc" Vol XII, 1885, p 296; ibid., Vol XIV, 1887, p 128; Bull Col.BioI Assoc., 1890, p 38; BEUTENMCLLER, Bull Am Mus Nat Rist., Vol IV,189'2, 262, 2; Am Mus Journ., Vol IV, 1904, p 108, 43; Ins GallsVicino Y., 1904, 2'2, 43; GILLETTE, Proc Iowa Acad Vol I, 1892, p.114; DALLA TORRE, Vol II, 1893, p 41; DALLA TORRE and KIEFFER,

1906 (1907), p 71

Neuroterull exiguillllimaBASSETT, Trans Am Ent Soc., Vol XXVI, 1900, p 332

1902,p.51

124 Bulletin American Jfl/scum of N all/raln '''WE''.

75 to

~tout, third than the twop!'('c(~dingones and very slender

I:;cutellum smooth, with a curved groove at the base Abdomen smooth I.e!!'s

brown, cubitus very delicate and almost eolorless

1.50mOl

GaU. (Plate XI, 1,2,3.) On the under side of the leavel' of swamp whih'

oak (QuerCl18 and white oak (Quercu8 alba) in autumn. '\Then maturethe consist of a rounded cell imbedded in the leaf and covered with

under surface of the leaf, the same to curl and become distorted Whenold and the wool becomes ta'l\'UY brown Diameter, 1.50 to 3.50 mOl

Habita/' Canada; New and Middle Statl~8; Ohio; Illinois; Iowa;Colorado (1)

A ('ommon all the late terminal lea"es of young

BassettOC('mon white oak llnd are identieal with those of N.flOCC()8U~which are found on swamp white oak I also find the flies

of to be the same as those of~V

NeurotelUs umbilicatusBa ~"ett

Yol XXVI, 1900, p

1902.p 51; FELT,Ent Soc Ont., 1906

/'I.'cuTa!erU8 umbiluatu8 (B.~g!'\ETI'MS.) BEUTENMi'LLER, Bull Am Mus Nat.RisL, Vol IV, 1892, p 263; Am Mus Journ., Vol IV, 1904, p 108, 44; Ins.Galls Vicino N Y., HI04,p 22, fig 44

NMlrateru8 umbilical us BA"8~;TI'.Trans Am Ent Soc.,

330; DALLA TORRE and KIEFFER, Gen Ins Fam

Ins Aft' Pk & Woodl Trees, 1906, p 627; JARYl".37th

(1907), p.i2;ibul.,:38th 1907 (1908), H, fig 6

Female. Head black, smooth Antenna:' 13-jointed, mther short and slender,

hairs or grooves Scutellum small, black, without fovea:' Abdomen black, clear,dark, shining brown, sometimes black, with the

veins first cross-vein dark bro'l'm Art'olet small but ,listinct Cubitus slender,thlrotll!:llOttt and quite to the first cross-vein Length, 1.50 mOl

Gall. (Plate XIII, Fig 7.) In great numbers on the underside of the leaves

Monothala-mous Small, circular, flattened and coneave, with a minute conical elevation in thecentre of the concavity Beneath the conical elevation lies the minute larval cell.Brown and covered with minute hairs The are detached, but leave

an indentation which is seen as a flattened elevation on the upper side of the leaf.Diameter, 1 to 1 '50 mOl

Hal:Ti.lat. Canada (Ontario); Connecticut; Nt'w York; !'lew

vania; Illinois

Bculc'n7111iller, North American ofNeurolcrull. 125

lIeuroterus saltatonus

salta/orius lb EDWARDS, Pacific Rural Pre!l8, 1874, p (?); RILEY,

Am Nat., Vol X 1876, 218; Trans.:'it Louis Aead SeL, Vol III,1878, p cxci;Proc l' S Nat Mus., V, 1883, p 634; Ann Nat Hist., 5th ser., 1883,p.142

Ilaltilan4fDODGE, Field and Forest, Vol II, 1876, p 56,

Ne14roitrlUI salta/oriusA'UUIEAD, Trans Am Ent Soc Vol XIV, 1887, p 128;

II,1893, p 46; HOWARD, Bull 54, Bur Ent., l00S, p 81

Female. Head brown black, mi,ero8c<,pi(~allybut disti[Jlctl.ycrackled Antennro 13-jointed, all the joints rather stout Thorax brown,

GaU. (Plate XI, 12.) On the under side of the leaves of a of white

oak (QutrCUS undula/us). Rounded, almost attached a flattened base

to the surface of the ll.'af, apex with a Itis micITl8c1opi,ca;lIygni\nlllate<l,thin-shelled, and bt>comes No larval cell Diameter, 75-1 mm

Habikt.!. California Yuba Co.)

Rural Press' is not accessible to me and I do not know whether the insect was des<·ribed The above of the was made fromsp(~cirnell:;cut from the has also been recorded from

New Missouri and Michiij;{an, O<:'currirlg

I believe the latter to anotherISI"eCIt:IS.

tQrius is from California.

lIeuroterua cockereUi sp. nov

crack-led and wrinkcrack-led, more lIOat the sides of the head and thorax Antennre

brown Thorax without grooves Scutellum with a broad transverse groove

the first cross-vein 1.25 to 1.75 mm

GaU. (Plate XI, 10.) On the ICR\'es of a species of oak

Habitat. Manitou, Colorado (T D A Cockerell)

lIeuroterus lODigip,nnis Ashmead.

Neuro/erWlkmgijJenni8A;;HMEAD, Trans Am Eat Soc Vol XIV, 18S7, pp 132,140; DALLA TORRE, Cat Vol II, 1893, p 43; DALLATORREand KIEFFER,

126 Bulletin American Museum of Naiural rn.'''''TU.

Scutellum swollen, rugose-punctate Abdomen very small, black and

GaU. (PlateXII, 11.) On the of the leaf or sUITOlmding the base

wood:y swelllin,ga, measllririg from 8 to 9 mm in and 3.50 to 4 mm in diameter

Habitat. Florida

lfeuroteru teetu BfUJsett.

Neuroterus tectus BASSETT, Trans Am Ent Soc., Vol XXVI, 1900, p 331;

Female. Head black, crackled and with a distiuct facial

thebase scutellum and abdomen black or dark brown, smooth and

Abdo-men petiohLte

Gall. (Plate XII, 1, 2.) On the small of dwarf chestnut oak

hardly increase the size of the bmnch or interfere with its while in others itchecks its extension

Habitat. Connecticut; New York; New

the first three joints yellowish, third joint first and second muchthickened; mandibles reddish, but black at the mesothorax withoutpara!)sillal grooves notched at the base of the st'utellum; scutellum withshallow groove at base the surface appearance the same as that of the thorax

Feet with tarsi brown, tibial of the same ('olor, but insome cases almost black, femom blackish in the middle and sometimes almost

2mm." (C P.Gillette.)

tlies were found in the spring of the year in twigs of last summer's

Beiuiel1m ulkr, NorthAmerican ofNeuroterU8. 127

attention I should not have noticed them at all had I not seen dead withnumeroUII small punctures in them, from which flies had

years." (C P Gillette.)

Habitat. Manitou, Colorado; 8

is not known to me and the undoubtc<Uy occurs on oak.

are with Prof Gillette.

:Neuroterua minutua U11788,~tO

minu/aBASSETT, Can Ent., Vol XIII, 1881, p 96

Neurotuus minutusMAYR, Gen Gallenb 1881,p 37; ASH~fEAD,Trans

Am Ent Soc., Vol XII, 1885, p 296; ibid.,Vol XIV, 1887, p 131; DALLA TORRE,Cat Vol II, 1893, p 44; DALLA TORRE and KIEFFER, Gen Ins

Male. semi-translucent, yelllo'wis,h brown, with the top of the thorax

and ocelli black Antennre first three joints very

Female. Head, thorax and abdomen dark brown Antennre colorlISin the male .75to 1 mm

Gall. (Plate XII, 3, 4, 5.) On the and midrib of the leaves ofwhite oak (QuerClUl alba) very early in when the leaves begin to

occur in clusters amI stunt the of the leaves The itself is

com-of a number uf cells in the leaf and is covered with a

Connecticut; New York; New

:Neuroterua distortus Ba88ett.

Neuro/erus dis/OTItiSBASSE'IT, Trans Am Ent Soc., Vol XXVI, 1900, p 336;

Female. Head black or bro'il'l1, face very broad with a distinct median

bro'il'l1 or black, very and smooth, and without grooves

selni-tI'!LnSiparerlt, femora darker in the middle

Male. Similar to the female in color Antennre 14-jointed Abdomen

dis-1-1.50mm

GaU. (Plate XII, Fi/( 6.) On the of young bronchlets of swamp white oak

(Ql~er,nlspll.lta:rwi1leil)in The consists of ovaloI' roundedchambers in the bud or on the very young leaves which are often curled and dis-torted The tip of the becomes dwarfed in and turned to one side Theare very and would escape notice were it not for the rosette-like

of the gall on Plate XII, is enlarll;ed

Connecticut; New York: New

BuUetin American JIuseum of Natural rn.""rlJ_

Neurotems pailiPEISBalm:tt.

Xeuroterus BAS8E'IT, Trans Am Ent Soc., Vol XVII, 1890, p 89

Seltroterus basllettiDALLATORRE, Wien Ent Zeit., Vol XI, 189'2, p 131; DALLATORRE, Cat Vol II, 1893, p 40

Neuroteru8 DALLATORRE, 'Vien Ent Zeit., Vol XI, 1892, p 131DALLATORRE llml KIEFFER, Gen Ins Fam 190'2,p.51

II tranS\'erse groove at the bl\.lle Abdomen black almost colorless

J[ale. Color of the female brown or brownish in the middle of the tibire

Gall. (Plate XII, 10.) On the midrib or veins of the leaves of

white oak (Quercus alba) in Monothalamou8 Small, oval, thin-walled ings covered with a dense brownish The affected leaves become dis-torted and dwarfed

swell-llabitat. Mas 'lllchnsetts; New York; New

Dalla Torre stutes that Bassett described

.Yeuroteru8 and that the name was rm~o('cupit~d

pairlu1'lpl~8 Schenck Vel' i'aturk .'.,,,,,,,,,u.

i'cithcr of these authors described a under

both did describe a Seuroterwl I have retained

bt"cause Schenck's appears to be an Andricus.

Neuroterua vemna Gillette.

Neuroterus 1:ernu" GILLE'ITE, Bull 7, Iowa Sta., 1889, p 281;Ent Am., Vol VI, 1890, p 22; Proc Iowa Acad Sci., Vol I, pt II, 1892, p 114;DALLATORRE, Cat Vol II, 1893, p 47; DALLATORRE and KIEFFER,Gen

Female. Head black, smooth, mouth parts brown, tip of

Antennre first and second joints short and stout, third joint

re~nainiIllgjoints short, joints one to three ones

Thora:" black, mesothorax notched Scutellum smooth, 'I\'1th a

Wings veins very Areolet large Cubitus continuous to the fiI'llt

GaU. (Platc XII, Figs 8, 9.) In numbers on young leaves or catkins of burr

on the catkins, these become mut>h enlarged and swollen, and remaingreen upon the tree until the flies within have their

llabitat. Iowa

Be1'de1tmlWer, North American oj N euroterus. 129

Ac~~or,din2 to Prof C P Gillette the eggs are and

brood of flies 16 The second brood of flies bred from June

Prof Gillette differs from those of the first brood more colored The base of the first three or four of the antennre and feet are colored In some cases the anterior tibire

the on Plate XII were made from sentto me Prof Gillette 8 is much enl.arged.

Neurotern pa11idt! Bassett.

Neurole:1'U8 BASSETT, Trans Am Ent Soc., Vol XVII, 1890, p 88;BEUTENY:ULLER,Am Mus Journ., Vol IV, 1904, p 107, 40; Ins Galls Vicino

N Y., 1904, p 21, 40; DALLATORRE, Cat Vol II, 1893, p 45; DALLA

gradUluly chlmging to brown Thorax notched pOSiteriorly,

transverse groove at the base Abdomen rather black or almost black,

line, veins dark brown Areolet Cubitus rather delicate and almost res.chiingthe first cross-vein Radial area open .75to1nY:n.

Male. Head brown, eyes and ocelli black Antennm14-,IOliltell,

Thorax brown with two yellowishyellowish brown, claws Ab

(Plate XII, 7.) In dense clusters at or near the ends of the aments

I •

A distinet

characteristic and may be

sterile flowl?rs of the oaks

is alsoveryfound on the

Neuroterns exigutlS Ba.,.,eft.

i'-eurolerU8 exigulls BA8Elf:TT, Trans Am Ent Soc., Vol XXVI, 1900, p_ 333;

D.'i.LLATORRE and KIE~-F~:R,Gen Ins Fam 1902_p.51.

Female. Head black, almost smooth, shining Antennm firststout, at base,second as broad as the first, remaining slender, all semi-

130 Bulletin Amer£can Museum of Nalural n,,,wru.

without grooves Scutellum black or brown with a few micl'(lsc.opi.c

incurved broad groove at the base Abdomen black, or

dark brown with the joints

cent Radial area open, areolet

J{ale. Similar to the female in color Antennre 14"jOlmtNl,

delicate, except the first and second Abdomen

GaU On the flower clusters of post oak (QuerCWl minor) in

are nodular enlargements but all more or less hidden in the flowerlet are verysmall and succulent and soon shrivel up and after the flies have en:lel1il;ec!

Habitat. Connecticut; Kew York; New (Lakehurst)

The adult of this is allied to N.tectl/s.

Beuroterus laurifolillil Ashmead,Neuroteru8 ASHMEAD, Trans Am Ent Soc., Vol XIV, 1887, pp 128,140; DALLA TORRE, Cat Vol II, 1893, p 42; DALLA TORRE and KIEFFER,

Female. Black, smooth and Antennre velll01iVish brown

and femora more or less infuscated in the middle, black or brown

radial area open, vC'ry and narrow Areolet Cubital cell open

about 1.50 mm

GuU. (Plate XI, I"ig 7, 8.) On the upper or under sides of the leaves of laurel

oak (QuerCWl Monothalamous Small, rounded, kernel-like with thedisk flatted and attached to the leaf IInipple-like The j1;all is covered withloose fawn-colored wool Sometimes several occur upon the same leafand the wool these fonns a loose mal>s "'hen the and woolbecome detached from the Il:'aves Diameter of kernel 2 to 2.50 mm

Habitat. Floricla; Illinois

Beuroterus dubius Ba.~.~('tt.

one and two shorter than in the female first

XeurOleT!t8 dubia B.\S!'lETI, Trans Am Ent Soc., Vol XXVI, 1900, p 335

l\'euroler118 dubiu8 DALl,A TORRE and KIEFn:n, Gen Ins .Fam

1902, p 51

one and two third lonjl;er, fourth short, oncs very short Thoraxand roundcd smooth hut shininjl;, with two diwrjl;ent grooves fromthe scutellum to the base of the wings Scutellum and rugose, with

Male. Antenna; Ib··jolmted

at base dark and

Heuumntiiller, N orlhAmerican of N turo/aus. 131

dark brown,

black

1.50 mm

Habitat.

but less so than in the female Otherwise like the female

Connecticut (\\'atertmcy)

The of this inseet is unknown.

Bass('ttina boxof ofAndriell.~ prl'tH4'O.~,Wl',

which seemed to ha\'e come.

Neuroterus vesiculuB 1l}11SS,ruI

H F apI)ealred from

vesiculaB.~SllE'IT,Can Ent., Vol XIII, 1881, p 97

affinisBASSE'IT, Can Ent Vol XIII, 1881, p 103

Neuroterus~Jesicula ~hYR.Gen Gallenb 1881, p 37; ASHMEAD, Trans

Am Ent Soc., Vol XII 1885 p 296; ibid., Vol XIV, 1887, p 131; GILLE'ITE,

Iowa Acad ScL, Vol I, pt II, 1892, p 114; DALLA TORRF;, Cat Vol II,

52

NeurolerUII ASHMEAD, Trans Am Ent Soc., Vol XII, 1885, p 296; ibid.,

Vol XIV, 1887, p 131; DALLA TORRE, Cat Vol.II, 1893, p.37; DALLA

Female. Head black, rugo,.;e, ocelli Antennre 14-']01,nt,ed vell01wishbrown ba -.ally changing to brown-black toward the tip Thorax black, very

punctate and from the thorax ll.broad, shining groove

or greenish brown color, sometimes with spots In size it is

to hold the larva within

of this of arc half grown in the autumn and

in dUk that the insects eome out as the Ica\'es

I can find no differences betw{~en the adults and of

7, 8, and and are, as surmised

par-132 Bulletin A.mericanMU3eum Natural H<.,W'fU.

HUBOI!!, has bred this

I have taken the The flies toemerge

grooves Mr Lewis H.

from swamp white oak

in the of New York late

about 6.

Neurotems COIlignlga.ms Gillette.

Neuroteru8 oongregatu8 GILLETrE, Ent News, Vol 1893, p 166; DALLA

Male. "Head with a fine crackled appearance, eyes

crack-ledlaJ)pe'anl.n<~ecommon to the genus, without ll.n'vgjlml~ ofparn(lsi<ial or l()tl1,ergrcKlVe8,and a broad notch at the base of the scutellum; scutellum without

with a shallow basal groove, and with the crackled appearance indistinct,

almost the costal cubital nervure faint, and hence the areolet rather

first and second robust, third as as the fourth and fifthto~;eUler.

2 mm." (C P Gillette.)

Gall. On the terminal and axial bud of oak (Quercus sp.). TheeXlparlds next to the bud, and within the bud a number of littleITIl'UUUU

semble those ofl.,r \'esiculaBass are in clusters of from ten toteen The clusters measure from 6 to 8 mm in diameter

fif-Habitat. Colorndo(~Ianitou).

This is not known to me to Prof C P Gillette the arc found in and the flies hateh before 17 The are with Prof Gillette.

Neuroterus clarke sp nov.

14-jointed, first three joint!! remaininR ones broWll black Thom" black,

minutel,y rugose, \('S8 than the thorax, with a few hairs and a transverse

line Radial area elosed Cuhitus not

Male. Jet black, lel!8 somewhat darker than in the female Antenrue

Rcutellum smooth Abdomen with a very short

GaU. (PlateXII, Figs 12, 13.) On the of the leaf of white oak (QuerCU$ alba) in Monothalamolls LiRht hrown, bud-like and covered with short