1911] Study of Muscoid Flies 143 



Echinomyiine series — Echinomyia, Fabricia and allies. 

 Peletria and their allies may come here. 



Saundersiine series — Saundersia, Epalpus and their allies. 



Dejeaniine series — Dejeania, Paradejeania and Lasio- 

 palpus. 



Masiceratine series — This and the ISth and 19th series 

 above represent only a part of the leaf-ovipositing minute-egg 

 forms of Taehinidae, which exhibit a surprising variety of type, 

 in female reproductive organs and eggs. They may be divided 

 as follows, so far as now known, leaving the present group for 

 Masicera, Blepharipa and allies, which have a long uterus con- 

 taining black eggs with a honey-comb reticulation of the 

 chorion. 



Brachymasiceratine series — This is the 18th series above. 

 Brachymasicera polita gen. et sp. nov. ( Peru) dissected, TD 3987 

 Short uterus, black eggs, chorion with a wrinkle pattern and 

 not honey-comb reticulate. 



Belvosiine series — Belvosia, Latreillimyia and allies. Bel- 

 vosia piurana sp. nov. (Peru) dissected, TD 4032. Uterus long, 

 eggs black, chorion without reticulation but coarsely punetu- 

 late, the punctures largely double and triple. 



Triachora has the chorion more finely and evenly punctu- 

 late, the punctures all single. 



Blepharipezine series — Blepharipeza, Parachaeta and al- 

 lies. Long uterus with black eggs, the chorion conspicuously 

 honey-comb reticulate, the divisions with minute raised points. 



Goniine series — Many specimens of various spp. of Gonia 

 from both North and South America have been dissected, and 

 drawings made of two of the dissections which appear widely 

 different. One is a short thick uterus in only one to two coils, 

 with very short oviducts and large ovaries, TD 4011; the other 

 is a very long uterus in five or more coils, with elongate oviducts 

 and somewhat smaller ovaries, TD 4037. Both are from Peru. 

 Other specimens from Piura, Nana (near Lima), and Arequipa, 

 Peru, show both long and short uteri, and I have found developed 

 maggots in the short uterus as well as in the long one. The eggs 

 are minute, flattened ventrally, ovate to subcircular; the chorion 

 is without reticulation, but evenly, closely and very finely 

 punctulate throughout. Preuterus present, common oviduct 

 short, spermathecal ducts and tubular glands elongate. The 

 maggot is elongate-pyriform, sometimes appearing nearly sub- 



