472 The Philippine Journal of Science 1923 



Abdomen pale whitish yellow, the sternites beyond the base 

 a little more saturated; a narrow, brown, lateral line on the 

 basal half of the abdomen. Male hypopygium with the pleu- 

 rites unusually elongate, each pleural appendage very long and 

 slender, the acute tip slightly curved. The gonapophyses ap- 

 pear as two short, curved horns on either side, the tips directed 

 mesad. 



Habitat.— Formosa. 



Holotype, male, Kanshirei, altitude about 1,000 feet (about 

 300 meters), September 10, 1921 (T. Esaki). 



This handsome Erioptera is named in honor of my friend 

 Prof. J. Speed Rogers, in appreciation of his critical studies on 

 the Nearctic species of Erioptera. 

 Gnophomyia brevicellula sp. nov. 



General coloration dark brown ; antennas of the male elongate, 

 densely pubescent; wings grayish subhyaline; r-m before the 

 fork of Rs; the veins issuing from cell 1st M 2 very long, the 

 shortest two and one-half times the length of the cell; basal 

 deflection of Cu, at midlength of the cell. 



Male.— Length, 5.5 millimeters; wing, 6. Rostrum and palpi 

 obscure brownish yellow. Antennas elongate, if bent backward 

 extending nearly to the base of the third abdominal segment, 

 light brown, the elongate flagellar segments densely clothed 

 with an erect white pubescence. Head brown. 



Pronotum obscure yellow laterally. Mesonotum dark brown, 

 rather shiny. Pleura brown with a narrow, ventral, gray, 

 longitudinal stripe; sternites testaceous. Halteres dark brown. 

 Legs with the coxae and trochanters testaceous; remainder of 

 the legs dark brown. Wings grayish subhyaline, the veins 

 dark brown; stigma little evident. Venation: Sc long, Sc, 

 ending beyond the fork of R^ 8 ; Rs gently arcuated, r-m con- 

 necting with Rs about one-half its own length before the fork 

 of Rs ; basal section of R 2 a little shorter than r-m ; cell 1st M 2 

 small, elongate, widened distally, m a little shorter than the 

 outer deflection of M 3 ; veins issuing from cell 1st M 2 very 

 long, the shortest (distal section of Cu,) two and one-half times 

 the cell; basal deflection of Cu t near midlength of the cell. 



Abdominal tergites dark brown, the sternites paler. Male 

 hypopygium with the longest pleural appendage a long, slender, 

 somewhat flattened blade. 



