170 Dr. 0. P. Alexander on 



(?) to thrice (c?) the basal defiection of Mi ^2; basal 

 deHectiou of Ctiy before the fork of M ; cell 2nd A narrow. 



Abdominal tergites dark brown ; steruites obscure yellow, 

 the caudal margins broadly dark brown. 



Hab. Nigeria. 



Holotype, S , Effon Forest, November 10, 1920 {A. W, J. 

 Pomeroy). 



Allotopotype, ? . 



" In holes in big trees." Species of crane-flies taken in 

 these same situations include Dicranomyia {Thrypticomyia) 

 nigeriensis, Rhamphidia flavif arsis, and Megistocera filipes. 



Holotype in the collection of the British Museum (Natural 

 History). 



Trentepohlia pomei'oyi is a very distinct species that finds 

 its only close described relative in T. exornata, Bergroth, 

 from which it is readily told by the diagnostic characters 

 listed above. The fly is dedicated to the collector, my 

 friend, Lieut. Arthur W. Jobbins Pomeroy, of the British 

 Expeditionary Force. 



Dolichopeza {Trichodolichopeza) albogeniculata, sp. n. 



General coloration dark brown ; palpi yellow ; legs dark 

 brown, the knees narrowly whitish ; tarsi fading into 

 yellowish ; wings dark grey, stigma dark brown ; wing-tip 

 and veins seamed with brown ; conspicuous obliterative 

 areas before and beyond the stigma. 



Female. — Length 10'4 mm. ; wing 10'8 mm. 



F>ontal prolongation of the head brown ; palpi yellow ; 

 the basal segment brown. Antennae dark brown, the scapal 

 segments yellow. Head brown. 



Mesonotum dark brown, the humeral regions of the 

 prtescutum obscure yellow. Pleura badly crushed in the 

 unique type, variegated with brown and obscure yellow. 

 Halteres dark brown, the base of the stem yellow. Legs 

 with the coxse brown ; femora dark brown, the tips narrowly 

 but conspicuously -whitish ; tibiae dark brown, the bases 

 narrowly whitish, this area about equal in extent to the pale 

 femoral tips ; tarsi pale brownish yellow, becoming paler 

 and more conspicuous toward the end of the organ ; terminal 

 tarsal segment brown. Wings dark grey, variegated with 

 brown and whitish subhyaline ; stigma dark brown ; wing-tip 

 in cells R^ to Cui narrowly seamed with dark brown ; cord 

 and longitudinal veins narrowly .seamed with brown ; 

 whitish subhyaline obliterative areas before and beyond the 



