198 ENTOMOLOGICAL NEWS. [December, 



of face bare, rather narrow, facial depression much widened 

 below; facial ridges bare, except a few weak bristles above vi- 

 brissae, the latter inserted well above the oral margin; cheeks 

 narrow, hairy on lower portions. Proboscis withdrawn, short, 

 fleshy, labella well developed; palpi very distinct, considerably 

 thickened at tip. Abdomen not wide, short, oval or elliptical, 

 first joint hardly shortened; macrochaetae only marginal, except 

 on anal segment. Legs not long; metatarsi nearly as long as 

 following joints; hind tibiae with fringe of bristles on outer edge. 

 Wings longer than abdomen, not wide, without costal spine; 

 apical cell narrowly open, ending well before tip of wing; fourth 

 vein bent at an obtuse angle, without stump or wrinkle; hind 

 cross-vein nearer to bow of fourth vein. 



Exorista Chrysojhani nov. sp. 9- Black, silvery. Eyes brown; front, 

 face and cheeks silvery, the front shading to brassy or golden; frontal 

 vitta about one-fourth width of front, black or dark brown, fringed behind; 

 antennas and arista wholly black, second antennal joint bristly; cheeks 

 cinereous and hairy on lower portions, with some bristles on lower border; 

 proboscis and palpi black, or brown; occiput cinereous, gray hairy, with 

 broad black band from vertex to center, fringed with black hairs on orbi- 

 tal margins. Thorax cinereous, or silvery pollinose, hairy and bristly, 

 with three narrow, well defined, median black vitta?, and a heavier inter- 

 rupted one outside them; scutellum ochreous, blackish at base, with an 

 apical decussate pair of macrochaetae and three lateral pairs. Abdomen 

 covered with short black bristles; first segment entirely black, without 

 macrochaetae; second and third segments shining black, broadly silvery at 

 base with a brassy tinge; second segment with a median marginal pair of 

 macrochaetae and a lateral one; third segment with a marginal row, six 

 or eight of which are on upper surface; anal segment shining jet black, 

 very narrowly silvery at base, armed with macrochaetae and bristly hairs. 

 Legs black, femora slightly silvery, femora and tibiae bristly; claws and 

 pulvilli short. Wings grayish hyaline, third vein spined at base; hind 

 cross-vein sinuate; tegulae tawny white, borders darker; halteres fuscous. 

 Length 5.5 mm.; of wing 4.5 mm. 



Described from one specimen; Iowa. 



Mr. Johnson writes: "Two specimens were given to me by 

 Dr. Skinner. They are from Iowa, and came out of the chrysalis 

 of Chrysophanus dione, the larvae having been sent to Dr. Skin- 

 ner by Mr. Henry G. Willard. I infer, therefore, that they were 

 accidentally bred by Dr. Skinner. I had at first thought it nec- 

 essary to describe this form as a new genus, but subsequent re- 

 flection has induced me to locate it in Exorista, from which it 



