TAXONOMY OF MUSCOIDFAN FLIES — TOWNSEND IO9 



slightly before the middle of discal cell. Fourth vein bent at an 

 obtuse angle. Posterior crossvein gently bisinuate. 

 Type.— Cat. No. 10.912, U. S.N. M. 



Subfamily Echixomyiin.e 



Genus Varichaeta Speiser 



The name Variclurta has been proposed by Speiser for Brigone 

 Robineau-Desvoidy (1830), which is preoccupied by Savigny in 

 Arachnida (1827). The type species is V. radicum Fallen. 



Varichaeta aid rich i Townsend.- — This species, described under 

 Hystricia, belongs in the genus Brigone (Robineau-Desvoidy) 

 Brauer and von Bergenstamm. and must thus be known as J ari- 

 chcuta aldrichi. It is quite distinct from V. radicum. The latter has 

 only three postsutural macrochsetge, while aldrichi has four or five. 

 There are also differences in the abdominal macrochsetse. 



Genus Elachipalpus Rondani 



This genus is characterized by Rondani as possessing palpi, 

 though small ; and having apical cell appendiculate by reason of the 

 continuation of fourth vein beyond apical crossvein. The type 

 cited for it by Rondani is Micropalpus longirostris Macquart. from 

 the Cape of Good Hope. The species is figured by Macquart as 

 having a proboscis like Spanipqlpus, but with distinct filiform palpi, 

 and venation like Spanipalpus and Deopalpus, except that, instead 

 of a wrinkle, there is a distinct stump representing fourth vein be- 

 yond apical crossvein. Brauer and von Bergenstamm indicate B. 

 longirostris Rondani as type of Blachipalpus, but throw doubt on 

 Rondani's longirostris being the same as Micropalpus longirostris 

 Macquart. However this may be, it is certain that the American 

 species ruiicauda van der Wulp and macrocera Wiedemann do not 

 belong to Blachipalpus, since they have absolutely no palpi, the pro- 

 boscis is much shorter, and the venation markedly different. The 

 new genus Copccrypta is therefore proposed for Schincria ruiicauda 

 (van der Wulp) Williston. The species was referred to Cuphocera 

 by Williston. 



COPECRYPTA, gen. nov. 



Distinguished by a characteristic narrowing of the apical cell at 

 the end, the ultimate section of fourth vein being crookedly bowed 

 in and for the last one-third or one-fourth of its extent parallel with 

 the third vein and very closely approximated to it, thus forming a 

 narrow handle-like tip to the apical cell. The proboscis beyond 



