Townsend — New American Muscoid Diptera. 49 



and one-half times second. Epistoma proportionately broader. Three 

 sternopleurals. Two lateral scutellars, apical decussate pair, and discal 

 pair. Very weak median marginals on abdominal segment two, strong 

 ones on segment three: discal row on anal segment, with only weak 

 bristles behind. Palpi not enlarged. Male unknown. 



Eutheresiops trixoides n. sp. 



Length of body, 8.5 mm. ; of wing, 8 mm. One female, Mound Valley, 

 Sierra Madre of western Chihuahua, about 7500 feet, August 23, 1909 

 (Townsend). 



Blackish, ashy-silvery pollinose. Frontalia brown, palpi fulvous, first 

 two antennal joints rufous, third antenna] joint brown or blackish. First 

 abdominal segment and hind borders of intermediate segments more or 

 less blackish, the rest of abdomen and all of thorax and scutellum polli- 

 nose. The usual four brown thoracic vittae. Legs black. Wings clear. 

 Tegulae whitish. 



Holotype, No. 20,950 U. S. N. M. 



Jicaltepecia new genus. 



Genotype, Jicaltepecia rafaela n. sp. 



Differs from the other genera of the Compsilura group as follows : Eyes 

 bare. Facialia ciliate about one-third way. Parafacialia only a little 

 narrowed below, with rows of fine hairs the whole length. Vertex about 

 two-thirds eye, the front and face gradually widening from same, the 

 face below being about one and one-half times eye. Cheeks less than 

 one-fourth eye-length. Outer verticals not developed. Frontalia about 

 same width as one parafrontal ; latter scarcely narrowing posteriorly, the 

 former strongly so. No true median discals on any of abdominal seg- 

 ments, the anal segments with some short lateral discals, the third seg- 

 ment at times with scarcely differentiated short discals. Male unknown. 



Jicaltepecia rafaela n. sp. 



Length of body, 7 mm. ; of wing, 5.5 mm. One female, San Rafael, 

 Jicaltepec, Veracruz, March 2, 1896 (Townsend). 



Head golden, occiput cinereous, frontalia velvet-brown, antennae 

 blackish, palpi fulvous. Thoracic scutum pale golden; with four black 

 vittae, the inner ones linear and narrow, the outer broad and blotchlike, 

 all four united behind suture by a black blotch. Scutellum golden, show- 

 ing blackish basally. Abdomen black, basal half or so of segments two 

 to four pale golden pollinose. Legs brownish. Wings clear. Tegulae 

 yellowish-white. 



Holotype, No. 20,951 U. S. N. M. 



Euphoroceropsis new genus. 



Genotype, Euphoroceropsis alba n. sp. 



In form like Euphorocera, from which it differs as follows: Cubitus 

 with only trace of wrinkle. Vibrissal axis about half antennal axis. 



