OF THE STATE ENTOMOLOGIST. 163 



entific reader, Mr. Walsh's description of the female and my own of 

 the male.* 



These little parasites have always issued in the spring of the year, 

 just about the time when the j'^oung Katydids would have issued if 

 they had been unmolested; but as Mr. Walsh captured his specimens 

 in August and September, the insect must either be double-brooded, 

 or the female must survive during the summer months. As I have 

 bred it from Sphinx eggs, the first is doubtless the correct hypothesis. 

 The larva of this little anomaly I have not yet met with, but the pupa 

 (Fig. 49, h) is characteristically Uattened and straightened to suit it to 

 its narrow egg-abode. When mature, and not till the wings are 

 expanded and all its parts are hardened, the fly gnaws its way out 

 through an irregular but usually round hole at the anterior or exposed 

 end of the egg (Fig. 49, a). 



The male, as will be seen upon glancing at the figures, approaches 

 much nearer the more common (Jhalcididan form. He has clear 

 wings, a narrower body, and is of a more brilliant metallic green color 

 than the female, from which, indeed, he differs so much, that had 1 not 

 bred both sexes from the same batch of eggs, we should scarcely 

 believe them to be at all specifically connected. 1 never saw him roll 



• AxTiGAirTER MinABli.is. — Q (V'lu.. 4S, a back view, b curling- U]), c nearly curled up— both in jiro- 

 lile) , Head su)i-iiii;h|uc, tincly and closely punctate; lirilliant greenish-copiiery with purple rellections. 

 Mouth, includin.ir llie cl\)ieu>, black Antenuie with the joints rather indistinct: the .scai)e hall' as lout;' 

 a.s the other joints ]]ut top-tlier; joints l-lo iirojiortioneil as 3, il, 4, (1, H, 4, 4, 4, 9; the scajie rufous, 

 the other joints biown-iilack, and those oT the lla.uellum o]ia(|ne. Prothorax rivfbus. Tlwrax above 

 and on the pleura linely and shallowly rujioso-punctate and subjiolislied j the niesothoracic jinexutuni 

 .subopaijue, e((uilateralh' trianaular, iinely and closely jiunctate, and ot a more or less brilliant irreen- 

 ish cop]iery color; the other thoracic iiieces black, Vvitli blue and .ureen reflections, excejit tliaf, the 

 jileura is, sojuetinies, rulb-piceous on its disk. The sternum is polished, devoid of sculjiture, and black, 

 with metallic jireeii rellections. Membranous ]iarts Ijefore and on eacii siiU' of the scutel rufous. A 

 l)risht blue jihile in tlu' form of a rectau.uular triauule on each siik' of the metathorax, the I'eclanu'le out- 

 ward and lorward. Abdomen black, sulijiolislied, tslalirous, except a few shoit liair.s toward its tip, 

 basallv slender and re.ijularly widenin.u', with its sidi-s straight two-thirds ol' the way to the tiji, thence 

 regular! \ curved to the tip, which forms an obtuse angle, .Jidnt 1 fully '.: as long as the rest iiut to- 

 u'ether, and vellowish semi-trauspareut white, except its basal ',, and except that the base of.ioiut 2 

 .-hows black through the transparent overlap of the ternuual edge of joint 1. Sheaths of ovijjositoi- 

 white. Lcqs rufous; himl coxre dusky, esjiecially above; the four luu<l femora and tibise a litth' clouded 

 externally "with duskv, and the last tarsal joint in all six legs dusk> . Front JViiujs dusky, sh.iding into 

 h valine on their terminal 1-6 [this hvaline api(ral s|iot sometimes entirely wanting. — C. V. K.]: their 

 basal i,' and a broad transverse widely interrui)ted baud a little beyond the middle, both of them whitish 

 subhvaline; veins and stigmatic branch brown. Hind PFfrtffS hyaline; veins pale brown. Length $ 

 • 1.13-6.14 inch. 



De>cribeil from 8 v taken upon herba.ge ne:ir Ivock Island, Ills, in August an<l Sejitember; 2 Q 

 with the thoracic parts elevated and th«' l)ody more of less rolled ii)!, the other v «ith the tlioi'.icic parts 

 ile)n-esseil and the bodv extended; y unknown. Nothing but the almost exact corres|)ondeiice of all 

 the complicated colora'tioual and structural i)eculiarities, found in this in.sect, would ever induce any 

 entomologist, unacijuainted with this most remarkable genus, to believe that the.se three specimens are 

 all ideiiticallv the same. 



cf (Fig! 49 c).— Lcdor brilliant metallic-given, with faint blue and pur))le reflections. Head yvry 

 bright green, tinelv and closelv puuct.ite; eyes ]iale, with a dusky patch m tront, smaller and further 

 apart than in Q ; eyelets jinridish: autenu;e black and opaciue throughout, cylindrical, of a more uni- 

 form thickness and']iroi)ortionall\ rather longer than in Q, reachin.g. if turnecl back, to the base of ab- 

 domen, whereas those of ■; scarcel v reach so far; 10-jointed, the joints ](roporIioue<l as .3 (scape), 1, 3, 

 ■2, 2, 1-10, 1-11), 1-10, 1-10, S (club)'. [On a nu)re critical exanunatiou ot liesh specimens, 1 tiud that 

 the icdnts are ]iroportioneil I'ather as ;!, 1, :>, 2'^, 2, 2, 1,1,1, 5.] Collare very short. Thorax above very 

 lineiy pun<-tate and suli|iolished, and either bright metallic-green or co|iper.> -given, with laint pui'iile 

 reflections, the metathorax more bluish an<l more highly jiolished than the rest; built on a dillei-eut jilan 

 from that of v ; lacking the verv |irominent and characteristic prothorax, the jira'scutal triangulari)iece, 

 and the scpiare excavation, Mhich occur in that sex, and more ne.irl.\ resembling Eiinjloma, Dccaloma, 

 etc., in the divisions of the mesouotum. Abdomen dtirk metallic blue throughout, glabrous, smaller 

 and more imiform in diameter than hi g; the joints distinguished with dilliculty, but ajidarently 

 proportioned as in Q. Legs with the femora all dusky ^\ ith a faint bluish reflection; trochanters 

 rufous; coxa3 steel blue; front and nuddle tibine white; hind tibiie dusky; tarsi all white, with occa- 

 sionallv (I specinuMi) the terminal i(dnt duskv, the nuddle pair lackhig in a great measure the jiecnliar 

 iiilaruement of basal Joiut JVinf/s more rounded than in Q, perfectly hyaline, the stigmatic branch but 

 faintly disceridble. Length ()9-'(l 10 inch. 



Described from 8 dried specimens. 



