L36 Annals Entomological Society of America [Vol. IV, 



29. Dexine series — Almugmyia arida gen. et sp. nov. 

 (Peru) dissected and drawn, TD 3979. Dexia, Mochlosoma, 

 vSirostoma, Sardiocera, and allied forms dissected and maggots 

 drawn. Uterus thick, tubular, in one coil; eggs and maggots 

 in a very oblique and somewhat spiral arrangement; ovaries 

 very slender, elongate, consisting of few eggtubes; common ovi- 

 duct rather long, oviducts short, spermathecal ducts long and 

 doubled, tubular glands small. The maggots of Almugmyia 

 and Sirostoma have anal spiracular tubes carried out in long 

 slender anal processes which are tipped with bristles; the eggs 

 of the first are sharply pointed anally, due to the presence inside 

 the chorion of the anal bristles of the developing maggot. 

 Probably the genera above mentioned all come in this series 

 with many others, but the reproductive-system characters 

 above given have not yet been verified for the genera other 

 than Almugmyia. Parasites of white-grubs, woodboring-grubs, 

 and probably others. 



30. Myiophasiine series — Ennyomma globosa (South Car- 

 olina and Florida) dissected, TD 509. The maggot is so 

 slender as to be almost filiform. Uterus present, but form not 

 determined. Ennyomma, Myiophasia and allies. Parasites 

 of weevil grubs in green fruits. 



31. Phasiopterygine series — Phasiopteryx spp. (Colo- 

 rado, Veracruz and Peru) dissected, TD 1791, 1791a, 4005. 

 Uterus present, very long and slender, in many irregular knot- 

 like coils and turns, the upper part more regularly coiled, receiv- 

 ing the eggs while latter are still microscopic, the eggs growing 

 to full size in upper part of uterus. Ovaries and oviducts very 

 small, the latter not over one-fourth the diameter of a full- 

 grown uterine egg. Preuterus present. Spermathecal ducts 

 very short, tubular glands short. Maggots with five longitudi- 

 nal rows of strongly chitinized segmental plates, those of median 

 row wide and covering dorsum of segments, those of inner lat- 

 eral row narrowed, those of outer lateral row presenting a ser- 

 rate outline below; underside white and soft. The chitinized 

 plates of the maggot vary from brownish-yellow to black, over- 

 lap when the maggot in contracted, the segments telescoping 

 and producing a strongly emarginate outline both from above 

 and in profile. These plates are evidently ambulatory in func- 

 tion as well as protective against conditions of life in the open 

 or subopen. Maggots elongate when not contracted, moderate- 



