370 NATHAN BANKS. 



Polyceiitropus sp. 



One example of a small species from Cuernavaca, June. 



Philopotainiis barrettse Bauks. 



Many specimens from Jalapa in April, and Teocelo in Septem- 

 ber. There is but little variation in markings. 



Pliilopotamns inexicaiius n. sp. — Head with black hair, not very 

 dense, ocelli distinct ; first joint of antennae brown, basal joints yellow, annulate 

 with brown, most of antennae from before the middle black ; thorax brown, with 

 black and few golden hairs; legs pale yellow, with yellow spurs. Wings dark, 

 veins black, clothed with golden and black hair, the golden most prominent near 

 tip ; several patches of erect black hair ; a long patch on anal region at base, one 

 at and one before the arculus, and one near fork of the cubitus, hairs on many 

 veins erect, fringe black; hindwings grayish, fringe dark gray. Length 10 mm. 



One specimen from Jalapa, Vera Cruz, April. 



Philopotamtis bicolor n. sp. — Head bright yellow, clothed with bright 

 yellow hair; ])alpi brown, basal joint yellow ; antennae black, except yellow first 

 joint; ocelli distinct; thorax and abdomen yellow, with yellow hair; legs yellow, 

 anterior tibite and tarsi black; middle and hind tarsi, except basal part of first 

 joint, black ; spurs 0-4-4 black. Wings jet black, with short black hair and 

 black fringe; bind pair dull blackish. Length 8 mm. 



One specimen of this striking species from Cuernavaca, May. 

 These three species of Philopotamus may be easily separated as 

 below ; P. bieolor will probably form a new genus : 



1. Head and thorax yellowish, wings uniform black ' bicolor. 



Head and thorax brown, wings mottled with yellow 2. 



2. Wings with patches of erect hair, not much yellow above- • • ■iiiexieaiiii»». 

 Wings without erect hair, much spotted with yellow barrettse. 



Diplectrona iiiiicolor n. sp.— Black throughout, the wings of course 

 more clear, especially the hind pair. Head rather broad, no ocelli, two large pos- 

 terior warts, no curved transverse ones. Antennae scarcely as long as wings, 

 slightly serrulate beneath, the first four joints as long and simple, those beyond 

 apparentlj' much shorter; maxillary palpi with joints two and three subequal, 

 the fourth rather longer, the fifth nearly equal to the preceding, curved and 

 multiarticulate. The niesoscutellum of the thorax is elevated. Venation similar 

 to Tinodes. Spurs 2-4-4; hind tibiiu spar.sely clothed with erect hair above, yet 

 scarcely forming a fringe. No filiform appendage visible on sides of abdomen. 

 Wings densely clothed with rather long black hairs; there is a dark dot in the 

 base of third apical cell ; the fringes very long. Length to tip of wings 6.5 mm. 



Several specimens from Cuernavaca in June. 



Lieptoneina pallida Gueriu. 



Many specimens from Jalapa, August; from Cuernavaca in IMay, 



