2 PROCEEDINGS OF THE NATIONAL MUSEUM vol.79 



same length, but only about one-half as broad. Seen from above, 

 both these lobes are narrow, somewhat dilating to their rounded 

 ends. Penis long and very slender, somewhat curved in S-shape; 

 titillators a little shorter, but also long and slender, acute at their 

 ends; both penis and titillators brown. Length of body, 9 mm.; 

 that of the anterior wings, about 13 mm. 



Allied to Rhyacofhila hohsoni Martynov (Tibet). 



7^y^._Male, U.S.N.M. No. 43156, collected at Yellow Dragon 

 Temple, near Songpan, Szechwan, 11,000 to 14,000 feet altitude, 

 July 25-28, 1924. 



/Specimens exa7)iined. — One, the type. 



RHYACOPHILA species 



Desenption. — Anterior wings brown, with distinct pale irrora- 

 tions ; second apical fork a little basad of the first, but the footstalks 

 of both forks are short, much shorter than in preceding species ; the 

 forking of Rs in the posterior wings is similar to that in the anterior 

 ones. Apparently a distinct species. Length of body, 7 mm. 



Spedinens examined. — One female, from Yellow Dragon Temple, 

 near Songpan, Szechwan, 11,000 to 14,000 feet altitude, July 17-20, 

 1924. 



Genus GLOSSOSOMA Curtis 



GLOSSOSOMA ANALE, new species 



Plate 1, Figures 3 to 7 



Description. — Head and thorax brown above; antennae yellow, 

 with brownish annulations; apical portion darker; palpi brownish. 

 Side of thorax j^ellowish. Femora yellow; tibiae brownish yellow; 

 tarsi also somewhat brownish ; spurs 1, 4, 4, long, brown. Abdomen 

 brown above, ochraceous beneath ; genital segments dark yellow. In 

 females tibia and basal tarsal joint of the median legs dilated ; spurs 

 similar to those in male, long, dark brown. Anterior wings (male) 

 somewhat brownish, resembling those of G. valvatum Ulmer; dis- 

 coidal cell somewhat elongated; media approximated to CuA in its 

 basal portion, but united with it at a point only ; M3+4 approximated at 

 its base to CuA^ ; CuP ^ slender; Ai and Ao thick, distinct ; Ao arcuate 

 and strongly convex backward, inclosing with Ai a large subelliptical 

 opaque area. The venation of the posterior wings is similar to that 

 of G. valvatuin Ulmer, but the discoidal cell is somewhat longer; 

 second apical cell narrow at its base; third apical fork twice as long 

 as its footstalk. 



2 CuP is a term I introduce for Ai of authors, changing their Ajr-At to A1-A3, 

 respectively. 



