ART. 15 NOTES ON ACALYPTEATE PLIES MALLOCH 5 



fourth visible, the hairs on the dark portions blackish, those on apices 

 of tergites and most of the grey dusted portions yellowish white. 

 Femora fuscous, mid pair brownish basally, all tibiae rather variable 

 in color, sometimes brownish yellow, sometimes darker, basal seg- 

 ment of each tarsus yellowish white except at apex. Wings marked 

 as in Figure 5. Calyptrae white. Halteres yellow. 



Head shaped as in omei^ the vertex rather deeply sunken in the 

 female, less so in the male, the latter with the vertical width about 

 twice that of the female, but two vertical bristles present; arista 

 without an apical palette in the male. Thorax narrowed in front in 

 the female, hardly so in the male, neither sex with exceptional form 

 or armature ; tegulae of the male very slightly produced forward and 

 no pleural process below them, in the female the tegulae are pro- 

 duced forward in the form of a stout cone about one-third of the 

 distance to the humeri, and be- 



FlGURB 5. EUROSOPIA GBAHAMI 



low these processes there is 

 another similar in shape and 

 slightly shorter which has the 

 apex rounded, scutellum with 

 six marginal bristles. Abdo- 

 men without exceptional hair- 

 ing but for the triangular patch 

 of erect short black hairs in center of the anterior margin of fourth 

 visible tergite. 



Length, 11-12 mm. 



Type.—M^\Q, Cat. No. 43070, U.S.N.M. Male, Shin Kai Si, Mount 

 Omei, Szechwan, China, 4,400 feet; allotype, Suifu, Szechwan, 

 China; paratypes, same localities as the type and allotype, 11 speci- 

 mens (D. C. Graham). 



There is considerable variation in the minor details of the wing 

 markings in the type series but the general plan of the markings is 

 similar throughout. 



Group METALLICA 



The only species known to me which is placed in this group agrees 

 closely in most particulars with the foregoing one, having the head 

 seen from in front much higher than wide, the frons over twice as 

 long as wide anteriorly, the arista with distinct hairs on basal fourth, 

 and the tegulae produced forward in a long process. It differs from 

 all four species already dealt with in having the thorax and abdomen 

 metallic blue, and in this respect it differs also from any species of 

 the entire genus. In fact, Hendel uses as his principal distinguish- 

 ing character for the separation of this genus from Lamprogaster 

 in his key the metallic color of the latter as against the lack of 

 metallic color in Euprosofm. He did not notice the presence of 

 hairs on the stem vein of the wing in Euyrosoina and their absence 



