1(5 PROCEEDINGS OF THE NATIONAL MUSEUM vol.79 



Genus PLATYPHYLAX McLachlan 



PLATYPHYLAX species 



DescHption. — Head and thorax reddish brown, mesonotum dark 

 reddish in the middle, brown at sides ; legs j'ellow with black spines ; 

 abdomen brownish above, paler beneath; hind portion pale. Ante- 

 rior wings brownish, irrorated with very small pale spots; apical 

 margin parabolic; discoidal cell long; first, second, and third apical 

 forks angulate at bases; apical cell closed at its base by an oblique 

 vein. Hind wings also with long discoidal cell. Length of body, 

 about 12 mm. 



Genital segments (eighth, ninth, and tenth) formed as in Platy 

 pkylax rufescens Martynov, from eastern Tibet, but they are not in 

 good condition. At any rate, this form is closely allied to rufescens, 

 but apparently distinct, differing by darker coloration of the head 

 and thorax as well as by brownish anterior wings. Processes of the 

 tenth segment apparently are somewhat thicker. 



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

 near Songpan (11,000 to 14,000 feet), July 25-28, 1924. 



Genus STENOPHYLAX Kolenati 



STENOPHYLAX species 



Description. — Head and thorax reddish yellow, abdomen reddish 

 brown; legs yellow with black spines; spurs 1, 3, 4, yellow; antennae 

 reddish yellow. Anterior wings pale brownish, irrorated with minute 

 pale yellow spots ; costal, subcostal, and postcostal areas pale yellow- 

 ish; apical portion triangular, somewhat produced at Rs^; discoidal 

 cell long, dilated at its end. The end of the abdomen in the female 

 is formed somewhat like Stenophylax permistus McLachlan. Length 

 of body, 13 mm.- 



Remarks. — This species represents, probably, a new species, but it 

 is impossible to describe adequately the formation of its genital seg- 

 ments, as they are not in good condition. 



Specimens examined. — One female, from Mount Omei (5,000 to 

 11,000 feet), Szechwan, August 24, 1927. 



Family SERICOSTOMATIDAE 



Genus EODINARTHRUM, new genus 



Male. — Basal joint of antenna thick, as long as the thorax, clothed 

 with outstanding hairs and scales and, at least in the species here 

 described, bearing two short processes. Basal joint of the maxil- 



