BY ROWLAND E. TURNER. 177 



116. T. (Lophocheilus) excoriatus, n.sp. 



£. Clypeus convex at base, broadly truncate anteriorly and 

 strongly punctured. Head and thorax very closely punctured, 

 with long cinereous pubescence; sides of head with a fringe of 

 long hairs, recalling the genus Tachynomyia; scutellum large, 

 broadly truncate at apex. Median segment finely punctured- 

 rugulose. Abdomen elongate-fusiform, sparsely and shallowly 

 punctured; first segment with a sulcus from base nearly reaching 

 apex; segments 2-5 with an impressed transverse line near base; 

 segments 3-4 beneath with a blunt tubercle on each side; epipy- 

 gium rounded at apex, with a few curved striations. Hypopygium 

 with a longitudinal carina beneath, delicately transversely striated 

 above, broad at base, basal angles slightly prominent, broadly 

 subtriangular, rounded at apex and with a strong spine. Black; 

 mandibles, clypeus, interior margin of eyes as high as base of 

 antennae, a small spot above base of each antenna, exterior margin 

 of eyes connected by a broad line on vertex, pronotum obscurely, 

 tegulse, mesopleurse, abdomen and legs ferruginous; base of first 

 abdominal segment and a broad longitudinal band on apical 

 portion of first and on second segment, narrowly continued on 

 third black. Wings hyaline tinged with yellow, nervures fusco- 

 ferruginous. Length 15 mm. 



9. Clypeus a little advanced, broadly rounded at apex, with a 

 carina from base. Head moderately convex, half as broad again 

 as long, strongly rounded posteriorly and sparsely punctured. 

 Thorax and median segment very finely punctured; pronotum 

 narrower than head, rectangular, half as broad again as long, 

 with a few setigerous punctures along anterior margin; meso- 

 notum not very narrow ; median segment short, obliquely 

 truncate posteriorly. Abdomen almost smooth; first segment 

 vertically truncate anteriorly, the apical margin depressed, 

 leaving a transverse carina before apex; second segment with 

 about fifteen low transverse carinas, including the raised apical 

 margin, the carinas at apex a little stronger than those at base. 

 Pygidium not contracted, vertically truncate posteriorly and 

 15 



