Insecutor Inscitiae Menstruos 



Vol. Ill AUGUST-OCTOBER. 1915 Nos. 8-10 



NINE NEW TROPICAL AMERICAN GENERA OF 

 MUSCOIDEA 



By CHARLES H. T. TOWNSEND 



Siphosturmiopsis, new genus. 



Genotype, Siphosturmiopsis rafaeli Townsend, new species. 



Differs from Siphosturmia as follows : Proboscis stout, part 

 below geniculation no longer than part above same, the whole 

 extended scarcely equalling the height of head. Has same 

 epistomal characters as Siphosturmia, Masiphya, and Phasiop- 

 sis, and same anal segment as Siphosturmia. Vertex of female 

 scarcely as wide as one eye, front and face gradually widening 

 from same. Ocellar bristles vestigial. Second antennal joint 

 shorter, hardly half as long as third. Cubitus nearer to hind 

 margin of wing, well rounded; apical cell more widely open, 

 ending nearer to wingtip. Hind tibiae thickly short-ciliate in 

 both sexes. 



Siphosturmiopsis rafaeli, new species. 



Length of body, 9 to 10 mm. ; of wing, 7 to 8 mm. Two 

 females, San Rafael, near Jicaltepec, Veracruz, July 5 and 

 17, 1896, on flowers of Cordia sp. ; and one male, same locality, 

 March 27, 1896 (Townsend). 



The coloration is practically the same throughout as in 

 Siphosturmia rostrata Coq., the paraf rentals being slightly more 

 brassy, perhaps. 



Holotype, No. 19957, U. S. Nat. Mus. 



This species was determined by Coquillett as Brachycoma 

 ruficauda Wulp and referred to Atacta. 



91 



