ENTOMOLOGIST AND BOTANIST. 



299 



well as ill several others, a remarkable variation in the con- 

 tour of the eye, which might rcatlily be mistaken for a 

 speciOc character. In most specimens (^ $ the eyes are as 

 smooth as they usually are in mature llymenoptera; but in 

 3^5$ the surface of tlie eye is elevated in a number of 

 large ronniled whitish or gray tubercles— giving it a very 

 singular appearance. 



Variety globuHcola. Two $ breil Jane Gth from the 

 Cvnipidous oak-gall Q. globulM, Fitch, of last year's growth, 

 have the abdomen entirely rufous except some more or less 

 extensile basal black stains, but do not otherwise differ. 



Enrytoma auriceps, n. sp. jj*. Uiflers from the pre- 

 ceding 1^ only in the hairs of the head and body, being 

 goiden-vellow not white, so tliat the face has a bright goUli'U 

 instead "of a white relleetion ; in the ^ antenna: being always 

 S-jointed and never 0-joiuted, joint, d being long and com- 

 posed apparentlv of two couuuti- j>piiits, the apical oue sume- 

 times rulous; arid in tile hind coxa liein;; ci.'CMsi.iiially liimcd 

 with black externally. The $ dill'ers from the i.ni-idiiii; J 

 in the abdomen being black immaculate, and tlie hind i"\a' 

 and occasionally (2 $) a cloud on the anterior midilU- ,.1 tlie 

 hind femur being black, or (1 5 ) in the entire middle of the 

 liind femur being black. Generally, but not always, the 

 midtlle and front coxiu are also more or less black. "Lengtli 

 (^ 0.10— U. 13 inch, $ O.IU— 0.14 inch. 



Described from 8 jf li) $ bred Aug. 31st— Sept. 30th from 

 the Cynipidous oak-gall (J. crinacctu, Walsh (=Q. pisum. 

 Fitch?) of the same year's growtli, and 1 § bred May cth 

 from the same gall of the preceding year's growth. A single 

 normal (^ was bred June id from the Cynipidous oak-gall Q. 

 »fongiJjca, O. S., and four normal § from the Cynipidous 

 oak-gall Q. lUrla, Bassett, Aug. :30(li— .Sept . 7th. A single 

 $, bred from the Cynipidous rose-gall radicum, O. S., is 

 only abnormal by having the entire middle of the bind fi'iimr 

 black, as in one typical § . 



Variety srminatrix. Five ,^, bred Jidy id from the Cynip- 

 idous nuk-g:iH srminnfor, Harris, nftlie .s;ime year's growtli, 

 only difler rn.m the normal (f' in being (Mi the averuge con- 

 siderably .sniaUer, and in one r? not unlv having the liind 

 coxie lila,-k. but ul,<o tin- exteriiul middle' of the hin.l leiunr 

 and tiljia black, besides an :iWpnvi:itid black line ,,n the 

 Iront and middle l\-m,n~i ali..ve. Twelv.- ^\ bred lium the 

 same gall .Inlv -.'d— .".tli, ditV.r li-mu the norneil J in bein- on 

 the averaije e.-n^dn mI,I\ ~ni:dler. and in tlu- legs being more 

 general I V and iii"i . (M.'n-u .1 v marked with black, the liout 

 and middle lini.ia b, in- ,,llrii m.n-e or less widely vitiate 

 with black above As in the nm-iual i^, the (f" has gohku 

 hair on the face. Leugtli (j" 0. OS— 0.10, $ 0.07—0.11 inch. 



£iirytoina puuctiventri)), n. sp. $ Dill'ers from Eur. 

 prunicola ^ only as follows: 1st. 'file si/e is larger. 2d. 'fhe 

 longorlinii ahdondnal joint is linclv ami closelv pnnc.l n.ed 

 nearlv up to the dorsal lin.'. ::d . 'the i.odnncle and joints 

 •i-ri of the ahdonien an- aiwavs l)l;n-k; lint the riiuaining 



ilorsal ioinis and tin- venter are ,ieea,-i illy rnro-pieeous. 



4lh. All the six coxa' are black. I.englh $ Hi— 0.17 inch. 



Described from2 $ , bred from the Cyuipiilous oak-gall Q. 

 mamma, Walsh MS , and 1 J , bred July 2« most prob.ably 

 from the ftingoi^l growth on oaks referred to above; ^ un- 

 known Comes pretty near (o Eiir. mirireiis, J n. sp. ; but 

 is distingui.shable by the larger si/.e ami the strongly punc- 

 tured tltXh joint of the abdomen . 



£arytoina abnormieornis, n. sp. ^. DilTers from Eur. 

 prunicola 5 only as follows: Ist. The size i.t larger, '.'nd. 

 The scape of the auteniue is rnt'ons tip[u-d with black : joint 

 Sis '24 times as long as wide; 4—7 gradually diiiiiiii>iiin_' 

 until 7 is square; and the club is only 1} tiims a.s long ;i> 

 wide much shorter than joint :i or tiniu joints and 7 taken 

 together, and also distinctly rnlon 1. :id. fhe abdomen is 

 black immaculate, and as usual is onlv imnclateon its lower 

 surface. 411i. Ail the eoxa- are lilaek, and the hind femora 

 and niiiUile tibiie clouded with dusky. Length g o.lil inch. 



Described from 1 $ captured at large; ^5* "nknown. 



Enrytoma diastrophi, n. sp. ^ 5 Differ from Eur. 

 pnmiro/a only as follows: 1st In the antenna; the scape, 

 if rufous at all, is only luisally so, and occasionally is black 

 immaculate. M .Vnienine (^ are S jointed as in auriceps, 

 hut miieh shortev ^ $ than either in prunicola or auriceps, 

 and without any [lednncle r^ at tip of joint 7, as in jf" 

 of those two species, lid. Aliilomeii $ is black imniaeulate 

 4th. Jn the legs the coxa' ari' all black, as also the hind 

 femora and hind tibia', except at the base and tip: and the 

 femora and tibiie of the middle legs, and femora of the front 

 legs, are often more or less marked with black externally. 

 Lengthy? 0.11-0.12, § O.U— 0.15 inch. 



Described from 2 ^5" 19 $ , Ined May 11th— June 1st, ft-om 

 the Cynipidous bramble-gall of Diastrophtts nebulosus, (). S. 

 Six J' two $ , bred May 24th^Iuly iM from the oak-fnngus 

 mentioned above, agree in everj- respect. I possess also 1 ^ 

 9 $ captured at large. 



Varietv Bolteri, Riley. $ differs from Eur. prunicola 5 

 onlv as follows: 1st. The size is larger. 2d. 'fhe antenual 

 sea'pe is black iinma.nlate. 3d. The abdomen is black im- 

 macnlale 41h The bind legs are black exiT|it die knees 

 anil the tips of the tilii;e. which are honey -yellow; the four 

 front legs are honey-vellow t-xcept the coxie, trochanters, 

 the base ami outer inidille of the femora, and a more or less 

 abbreviated external \ ill :i on the tibia' ; all the six tarsi verge 

 upon white. Length J 10 — 11. Is inch. 



Described from 1 5 bred Aug. 27th, from the lepidopter- 

 ons golden-rod gall of Gclechia r/allccsotidaginis, Uiley; 

 another $ bred M.ay 20th, its parentage unknown, and a 

 third 5 captured at large; ,^ niiknown. Mr. Hiley lias 

 described the ^ in his First Report (p. 177), but almost all 

 the characters that he gives are generic and not specilic . 



Eurytoma stucliosa. Say. f^ 5 scarcely diifer fi'om the 

 normal tejie of the preceding e.xcept in their inueb siualler 

 size, in tlie antennie being as long as in Eur. prunirula, and 

 in the antenual scajie beuig always black iinmaiaihite. 

 Ueeognized from six ^ six J , bred .Sept 7th— Jllb ii-omi the 

 Cynipidous oak-gall Q. Jicus, Fitch, of the s.inie year's 

 growth, and seven |J nine $ , bred May lOth — June .'ilh, from 

 the same gall ot last year's growth.— Length (^ 04— 0.01), 

 $ 0.05—0.11 inch. 



The following, bred from galls of various kinds, do uot 

 diff'er materially either in size, structure or coloration from 

 the above. 1st. Fko.m Cvsirioous oak-cai,ls; I c? 3 2, 

 bred July 2— 11, from semina/or, Harris; 1 $, bred Sept. 18, 

 from Q. hiria, Rassett; 1 (^ , from Q. siiongifica, O. S. ; and 

 2 c? 1 § , from the undescribed leaf-gall on Burr (Jak, (I. 

 /rafforia, VValshMS. 2ud. Fko.m textiiredinidous wii,i,ow- 

 GALL8;3c^l 2 , bred Mays— 24, from S. norfiM, Walsh; iff 

 2 $ bred May 14 — 20 from S. gemma, Walsh; 1 c? 4 $ bred 

 May -28— June 19, from S. ovum, Walsh; 4 jf 7 $ bred May 13 

 —June, 8 from S. ovulum, Walsh; and 10 g bred Aug. 13 — 

 Sept. G, from S. pomum, Walsh. 3rd, F110.M Ckcido.vividou9 

 galls; 1 r? 1 2 bred Aug. 2 — 11, from the willow-gall S.bras- 

 sicoides, Walsh, audi $ ascertained to be parasitic on Ccc. 

 cornula, Walsh, which is impiilinous in that gall; 4 rj" i J 

 bred May 10— 22, from the willow-gall s/rafti/oirfw, (). b ; 3^^ 

 7 2 bred May 21— June 9, from the willow-gall S. batatas, 

 Walsh; 8 cf 10 2 from the goldenrod-gall solidaginis, (). S. ; 

 and 6 c? 2 2 from the same gall gi'owing on irouweed. 

 4th Two 2 bred from the AprauiAN leaf-oali, Canjccglobu- 

 Ins, Walsh, growing on Shellbark Hickory .5th. From (he 

 undescribed CocciDOUS lkat-hall Carijte-fallax, Walsh MS., 

 growing on Shellbark Hickory, 7 r? 3 2 I'red .June .'iO. 

 (ith. One (f" bred from the black fd.n'uoid swkli.ixi: on I'ig- 

 uiit Hickory referred to above. 



The followingouly differ from Eur. studioaa, Say, in having 

 the base of the antenual sca|ie more or less rufous, espe- 

 cially in 2 ; 2 (^ 4 2 'ned Aug. 31— 'Seid. 9, trom the oak- 

 gall Q. erinaceus, Walsh, of the same year's growth, and 1 j^ 

 bred April 9 from the same gall of last year's growth; also 

 1^12 bred from the oak-gall Q palustris, O. S., of the .same 

 year's growth. 



I possess also 8 (f 33 2 captured at large, whicli should 

 probably bo refened to Say's species. I have been unable to 

 identify Eurytoma orbiculata , Say, described ii) (^ sex only, 

 and the laws of coloration seem to me to forbid the existence 

 of any species of Eurytoma with such legs as Say describes 

 in this species. According to him, the legs at e ' 'honey-yel- 

 low, with the thighs, except at their origin and extremity, 

 black." Now, 1st, If the thighs were much marked with 

 black, the coxic would necessarily also be more or less black, 

 whereas they are by implication described .-iS "honey-yel- 

 low;" 2iid, if the front femora were mostly black, as he 

 describes them, the hind tibia; would most probably be more 

 or less black. ITor it is a very general law in Cliatcididte 



