1886 THE BUTTERFLIES OF NEW ENGLAND. 



Microdus sanctus (Say). PL 88, fig. 10. 



Bussus sanctus Say. 



Body black; palpi tinged with piceous; thorax, pleura, pectus and the two anterior 

 pairs of feet immaculate; wings blackish violaceous, with a hyaline literatiou in the 

 middle ; nervures black ; separating aervure between the first cubital and the first dis- 

 coidal cellules widely interrupted; second cellule triangular; cubital cellule rather 

 large; metathorax and abdomen bright sanguineous, posterior cosae and thighs bright 

 sanguineous, the intervening trochanter black; posterior tibiae dull sanguineous, their 

 tips dusky, their tarsi blackish ; ovipositor nearly as long as body, ferruginous with 

 black valvules. Length, 7.5 mm. (After Say.) 



Of this species I have seen two female specimens, one from Pholisora 

 Catullus, reared by Miss Murtfeldt at Kirkvvood, Mo., (no date), and the 

 other fi'om Thanaos juvenalis, reared by Mr. Scudder, October, 1887, at 

 Cambridge. 



Note. — The remaining Braconidae, parasitic upon butterflies , belong to the subfamily 

 Microgasterinae and have been treated at my request by Dr. Riley, and from this fact 

 have been removed from this, their natural place, to the end of the chapter. 



FAMILY CHALCIDIDAE WALKER. 



Genus CHALCIS Fabricius. 



Antennae 13-jointed, short and stout, pubescent, inserted in the middle of the face, 

 scape moderate, third joint minute; scutellum slightly bidentate; abdomen subpetio- 

 lated, pointed in the female, but not much produced, first segment about half its entire 

 length; hind femora armed with large teeth. (After W. F. Kirby.) 



Table of Species. 



Hind femora black on the outer side flavipes. 



Hind femora yellow on the outer side, with black marking robusta. 



Chalcis flavipes Fabricius. PI. 88, figs. 14, 15. 



Chalcis ovata Say. 



Head black, with golden sericeous hair which is indistinct on the vertex; antennae 

 testaceous beneath towards tip; thorax with dilated dense punctures, a little sericeous 

 with golden hair ; tegulae yellow ; wings hyaline ; nervures fuscous, at base yellowish ; 

 feet bright yellow ; basal half of anterior pairs of thighs black ; posterior thighs 

 black with a yellow spot on the tip above, dentate along posterior edge; posterior 

 tibiae piceous on basal incisure ; terminal spine robust, shorter than the first tarsal 

 joint; abdomen subovate, polished; first segment nearly glabrous, second segment 

 hairy on each side ; remaining segments hairy near their tips. Length, 5 mm. (After 

 Say.) 



I have previously recorded this parasite from Chlorippe clyton (See 

 Bull. 5, Div. Ent., U. S. Dept. Agr., p. 8). It was reared by Pro- 

 fessor Riley from pupae of Agraulis vanillae in Missouri, and it has also 

 been sent me by Judge W. B. Thomas who reared it at Athens, Ga., from 

 the same species. It was also reared from Chlorippe clyton by Professor 

 Riley in Missouri. 



