142 Annals Entomological Society of America [Vol. IV, 



rows and developing maggots therein. Habit, larviposition 

 probably on host, as the uterine capacity is limited to a few 

 hundreds. 



Zygosturmiine series. — This is the 15th series above. 

 Zygosturmia inca gen. et sp. nov. (Peru) dissected and drawn, 

 TD 4031. Coquillett's Sturmia distincta and my protoparcis 

 belong to this genus apparently. The oviducts are quite 

 long and slender, common oviduct about two-thirds as long as 

 oviduct, tubular glands about one and one-half times as long 

 as common oviduct plus oviduct, spermathecal ducts about as 

 long as common oviduct, tubular gland ducts only a little 

 shorter than spermathecal ducts; ovaries with comparatively 

 few ovarioles; no true preuterus; uterus strap-like, in but one or 

 two coils, eggs and maggots packed in on the Echinomyiine 

 plan. 



Azygobothriixe series — Azygobothria aurea gen. et sp. 

 nov. (Peru) dissected and drawn. The ovaries are large, of 

 many ovarioles. Common oviduct is about as long as one 

 ovary. There is a nipple-like preuterus. The spermathecal 

 ducts are very long, fully twice as long as common oviduct, 

 sinuate, bent at or below middle. Tubular glands are short, 

 only half as long as common oviduct, their ducts nearly twice 

 as long as the glands. The uterus is wide and strap-like, in 

 about two coils more or less. 



Argyrophylax and Zygobothria seem to belong in the neigh- 

 borhood of these two series, but may not come within either. 



Hystriciine series — The leaf-larvipositing forms will need 

 division into at least seven groups, the present including 

 Hystricia, Bombyliomyia, Jurinia and allies. The others 

 follow : 



Melanophryonine series — Melanophrys and Artopharista 

 which may or may not be the same. 



Panzeriine series — Panzeria, Varichaeta and their allies. 

 Nielson has described the first-stage maggot of Panzeria as 

 having no minute colored plates, which I think is a mistake. 

 The fragment which he thought to be first stage of this species 

 seems either not to have been this species or else to have been 

 a piece of a second-stage skin. His text and figures indicate 

 this conclusion. 



Micropalpine series — Micropalpus and allies. Cope- 

 drypta may or may not come here. 



