372 COQUILLETT 



During the autumn of 1899 ^^'- Howard received, in ad- 

 dition to insects belonging to nearly all other orders, a series of 

 Diptera collected in the Galapagos Islands by Mr. Snodgrass, 

 of the Hopkins Stanford Galapagos Expedition in the early 

 part of that year. This collection, submitted to the National 

 Museum through Professor Vernon L. Kellogg, contains 413 

 specimens, representing 35 species, distributed in 26 genera and 

 17 families. One genus and nine species are believed to be 

 new to science ; eleven species were originally described from 

 specimens collected on these islands, while the remaining fif- 

 teen species have hitherto been reported from South or Central 

 America, the West Indies, or the warmer portion of North 

 America. 



Family CHIRONOMIDiE. 



CER.\TOPOGOX GALAPAGENSIS sp. nov. 



Head black, antenncE yellow, the first joint and apical half dark 

 brown, its hairs dark brown, many towards the apex tipped with yel- 

 lowish white, proboscis and palpi yellowish brown, the latter slender 

 and almost linear ; body dark brown, its hairs yellow, the humeri and 

 a vitta on upper part of pleura yellow, mesonotum opaque ; legs, in- 

 cluding the coxie, wholly light yellow, femora not swollen, destitute 

 of spinous bristles, first joint of hind tarsi slightly over one-half as 

 long as the second, last joint subequal to the fourth, not spinose below, 

 the claws small and of an equal size ; wings hyaline, thickly covered 

 with hairs, third vein ending in the costa near middle of the latter, 

 united to the first vein except at each end, second posterior cell rather 

 long petiolate ; halteres yellowish white; length 1.25 mm. Tagus 

 Cove, Albemarle. Three males, collected January 22, 1899. 



Type. — Cat. No. 4714, U. S. National Museum. 



Family CULICID^. 



CULEX T^NIORHYNCHUS Wied. 



Culex tceniorhynchus Wiedemann, Diptera Exot., p. 43, 182 1. 



Albemarle, January 28 and February i and 4. Eight specimens. 

 Occurs over the warmer portion of this continent. The female has 

 dentate front tarsal claws, and Arribalzaga's Tceniorhyiichus tcenio- 

 rkynchzis ^'led.^ with simple claws, must therefore belong to some 

 other species. 



