AET.2D. >:EV.' species of IHE genus DOLICHOPUS ALDRICn. 15 



rt/;;^.— Male, Cat. No. 25410, U.S.N.M. 



Runs to virga on page 17 of the analytical table of Bulletin IIG, 

 but diflPers in the male in having the front steel blue, the anal angle 

 of the wing conspicuously reduced in size and the third and fourth 

 joints of the front tarsi not broadly fi-inged so as to have the appear- 

 ance of a tassel. 



DOLICHOPUS TOWNSEXDI, new species. 



Male. — Front green, face pale yellow, quite narrow below ; palpi 

 yellow ; antennae of moderate size, the first two joints entirely yellow, 

 third entirely black, not at all elongated; orbital cilia pale, about 

 six of the upper ones black ; thorax and abdomen bronze green with 

 a considerable whitish dust, which in certain lights partly obscures 

 the ground color. Pleurae of the same color but a little more dusted ; 

 calyptcrs with black cilia. Hypopygium long and stout with excep- 

 tionally large lamellae, which are widest near the apex, rather trun- 

 cate, white except a narrow apical and still narrower upper border ; 

 the apical margin begins below with long processes bearing cilia, 

 tliese become gradually shorter at the upper corner and bear a rather 

 'iniform row of cilia. T^egs yellow; all the tarsi blackened from the 

 tip of the first joint, the second joint, however, more or less pale at 

 base; fore tarsi plain, not much longer than the tibiae; front coxae 

 without dark hairs except near the tip ; middle and hind coxae brown 

 as far as the bristle; hind femora without cilia, middle and hind 

 with only one preapical bristle, hind tibiae not at all enlarged, on the 

 hind side free from hairs between the two rows of bristles where they 

 seem to be whiter on account of the absence of hairs. "Wings almost 

 hyaline, widest a little beyond the large crossvein, at which point 

 the costa begins to bend backward: fourth vein ending rather far 

 before the apex, almost parallel with the third; a distinct notch in 

 the hind margin at the tip of the fifth vein ; anal angle small ; costa 

 not thickened at the junction of the first vein. 



Length of male, 5.4 mm. 



Described from 1 male, on rocks by stream, Rio Ruidoso. "White 

 Mountains. Xew Mexico, about 6.500 feet altitude (1.98 kilometers), 

 July 30, collected by C. H. T. Townsend. 



ry7?e.— Male. Cat. No. 25237, U.S.N.M. 



Runs to terminalis in couplet 58 on page 26, but differs in the very 

 large wide lamellae, in having the front tarsi darkened from the first 

 joint instead of only the last joint, and in some other minor char- 

 acters. 



DOLICHOPUS EXSUL, new species. 



Male. — Front green, face silvery white, rather narrow below. 

 Palpi yellow. Orbital cilia white except a few of the upper ones. 

 Antennae slioii:. broadly reddish below including the third joint. 



