1911] Study of Muscoid Flies 145 



slender, eggs blackish, elongate, obtusely pointed at each end, 

 chorion, with an almost perfect hexagonal reticulation, inter- 

 spersed with fine punctulations. 



Cnephalodes pollinosus gen. et sp. nov. (Peru), TD 4038, 

 which has been dissected and drawn, probably belongs here. 

 The uterus is extremely long and slender, in numerous irregular 

 coils and turns, the eggs elongate in single to quadruple file, 

 chorion black with honeycomb reticulation and punctures. 

 The characters of the maggot, including those of the cephalo- 

 pharyngeal skeleton, show a close relationship with Gonia. 



Ophirosturmiine series — This is the 19th series above. 

 Uterus long and in many coils, eggs brownish-yellow, chorion 

 honey-comb reticulate interspersed with closely-set microscopic 

 raised points. Oviducts long, spermathecal ducts very long 

 and slender, tubular glands moderately long, preuterus present. 

 Phasmophaga evidentally does not belong here. 



Ommasiceratine series. Ommasicera chaetosa gen, et sp. 

 nov. (Peru) dissected and drawn, TD 4018. Uterus short and 

 thick, in only one and a half or two coils; eggs brownish-yellow, 

 chorion with an elongate-hexagon reticulation like a honey- 

 comb pattern drawn out of shape longitudinally. 



This concludes the leaf-ovipositing groups so far as I am 

 able at present to indicate them. But there remains a multi- 

 tude of these forms yet to be assigned, among which I can give 

 notes on the following: 



Paragermaria has a very long slender uterus, about 40 mm. 

 in length, eggs black, chorion without reticulation, finely punc- 

 tulate much like that of Triachora. It probably goes in the 

 Germariine series, which will include Germaria and allies. 



Cnephalia has a very long and slender uterus containing 

 black eggs. 



Attacta, as represented by a specimen from Guatemala 

 which I doubtfully refer to this genus, has black eggs whose 

 chorion is not honey-comb reticulate but shows minute punc- 

 tures in a roughened surface. The uterus is probably elongate. 

 The puncture pattern of the chorion appears in the peripheral 

 area like a chitinous network, with an elongate or oval less- 

 closely punctured central area. The surface of the chorion is 

 closely and minutely roughened with projecting points. 



Ceromasia has brownish-yellow eggs, the chorion is intensely 

 honey-comb reticulate, each division closely set with micro- 

 scopic raised points. 



