AI.DRICH : T)3LICHOPUS AND HVOROCELEL'THUS. 23 



female. Face a little wider, legs and feet simple, second and third 

 veins not so approximate. 



Length, 5.5-6 mm.; of wing, 5 mm. 



Eleven males and nine females, Douglas ("o., Kans., June 17 to 

 July 7 (U. K.). 



Dolichopus pulchrimanus. 



Bigot. Ann. Soc. ent. Fr. , 18S8, Bull. l)imens; p. xxx, i^Spatickira 

 fi//i/iriiiiaiia);\.c., 1890, 292 {Spathichira piilchnviauiis). 



M. Bigot has given us practically three descriptions of this species, 

 as under the second reference he writes one in Latin and one in 

 French. Unhappily, his account of the male fore tarsi is essentially 

 different each time, and the remaining characters are far short of lo- 

 cating the species. 



The genus Spathichira. founded by M. Bigot to include all species 

 of Dolichopus in which the male fore or middle tarsi are notably en- 

 larged, is wholly untenable. The species fimditor which he se- 

 lects as a type, is a perfect illustration of the inapplicability of the 

 character for purposes of generic separation, since the female of fim- 

 ditor cannot be distinguished in any way from that of scapularis, a 

 species in which the males have plain tarsi. 



HYCROCELEUTHUS Loew. 



This genus was based on three European species of Dolichopus, in 

 which the face reaches the inferior corner of the eye. Subordinate 

 characters were found in the wide wings and in the males' elongated 

 antennae. 



The species at present known in North America offer characters 

 that interblend most curiously. Not one of the species could be dis- 

 tinguished in the female sex from Dolichopus by the length of the face 

 alone. In afflicius and crctw/i/s, Pacific coast species, the incision in 

 the margin of the wing at the fifth vein is a good distinguishing mark; 

 in hxtipes this is faint, in ciliatus absent. All the species but ciliattis 

 have a thickened costa in the npale, and the latter has a slight tubercle 

 on the dorsal side of the vein. The Pacific species have the typical 

 development of the antennae, characterized by a long, densely hairy 

 first joint with a bare, red swelling on the inner side; second joint also 

 enlarged in somewhat the same way; third joint sviall, with a thick, 

 short-plumose arista. The other species show this peculiarity to a 

 less degree. 



