AMERICAN DIPTERA. 225 



segments. Legs reddish-yellow; all the femora with a broad black 

 fascia, the few bristles toward the tip of the femora above black; the 

 distal portions of the tibiag and the tarsi pitchy; their bristles pale; 

 pulvilli whitish. Wings grayish hyaline; venation normal to genus. 



Type. — M. C. Z. The single male and female type specimens 

 are in very poor condition. 



Habitat. — Tex. (type) ; Opelousas, La. (May, C. W. Johnson). 



The male type is somewhat larger than specimens of this 

 species in the collections of Prof. C. W. Johnson, Kansas 

 University, or of the Massachusetts Agricultural College. The 

 female type is much faded. The difference in the ground 

 color mentioned as sexual by Loew is of little or no importance, 

 as both male and female vary from a dark to a reddish abdomen 

 as above noted. Neither are veins closing the discal cell and 

 fourth posterior cell behind always parallel; in fact, they are 

 more often not so. 



LAPHYSTIA. 



Laphystia Loew, Linnsea Ent., II, 538, 1847. 



Laphystia Schiner, Fauna Austr., I, 136, 1862. 



Laphystia Bigot, Annales, 1879, 235. 



Laphystia Hermann, Berl. Ent. Zeit., L, 29, 1905. 



Asicyia Arribalzaga, Hermann, Berl. Ent. Zeit.,LIII, 152, 1908. 



Intermediate between the Dasypogoninae and the Laphrinae. 

 The first marginal cell but slightly open, the first and second 

 longitudinal veins running into the cost a at very nearly the 

 same place. Body broad, stout. Antennas cylindrical, rather 

 stout, first segment swollen below, bearing bristles; second seg- 

 ment shorter and more slender; third segment as long or nearly 

 as long as the first two segments taken together, obtuse distally 

 and bearing a clearly distinct, short, biarticulate style. The 

 basal segment of the style is short and collar-shaped, the ter- 

 minal segment more conical, and at its end with a microscopic 

 style arising from a depression. Head very much broader than 

 high, the face and front very broad; the latter somewhat wider 

 above, depressed, almost saddle-shaped. Face rounded, con- 

 vex, its outline in profile easily seen; everywhere except nar- 

 rowly along the orbits clothed with fine hair; vertex much 

 depressed, ocellar tubercle prominent, both with erect fine 



TRANS. AM. ENT. SOC, XXXV. (29) JUNE, 1909. 



