ART. 15 NOTES ON ACALYPTRATE FLIES MALLOCH 7 



transversely striate on upper portion, the striae becoming less evi- 

 dent below and disappearing below middle; cheek about as high as 

 length of antennae ; labrum higher than width of third antennal seg- 

 ment, with minute striae commencing at center and running diag- 

 onally outward; palpi broad. Humeral lacking, posterior notopleu- 

 ral sloping forward and upward, two supra-alars and one postalar, 

 the mesonotum with short stiff decumbent black hairs; scutellum 

 rounded, microscopically striate and with six marginal bristles sit- 

 uated at apex. All tarsi quite conspicuously widened. Inner cross 

 vein of wing oblique, close to middle of discal cell; first posterior 

 cell narrowed at apex. Tegulae carried forward spikelike about 

 two-thirds of distance to humeri. 



Length, 15 mm. 



ry??e.— Female, Cat. No. 43075, U.S.N.M. Mount Mayo, Davau, 

 Mindanao, P. I., May, 1927 (A. L. Duyay) ; paratype. 



As already mentioned, this species is unique in the genus on ac- 

 count of its metallic blue-green body color. 



Group TENUICORNIS 



The genotype is tenuicorms Macquart, and the characterization of 

 the present group may be accepted as that of the genus in a restricted 

 sense. The head is not as high and narrow as in the preceding two 

 groups, being less than 1.5 as high as wide from in front, the vertex 

 has but two well-developed bristles, and the arista is bare. The 

 labrum is moderately high, the scutellum is not emarginate at apex, 

 and the tegulae are sometimes prolonged forward in the females. 



There are a number of species referable here, the following two 

 being before me at this time : 



EUPROSOPIA TENUICORNIS Macquart 



Euprosopia tenuicornis Macqtjaet, Dipt. Exot., Suppl. 2, p. 90, 1847. 

 An Australian species in which the male has a pair of long, slightly 

 i3attened, and distinctly curled hairs on one of the segments of the 

 fore tarsus. Both the species now before me have the rim of the 

 upper calypter dark, that of the lower one whitish, and the disk of 

 the latter dark brown. 



EUPROSOPIA SCATOPHAGA Malloch 



Euprosopia scatophaga Malloch, Proc. Linn. Soc. N. S. W., vol. 55, p. — 

 (1930). 



Also an Australian species which is at present in the press so that 

 I am unable to give the reference to the description. It is very 

 similar to teimlcornis^ but the wings are differently marked and the 

 male has no long hairs on any segment of the fore tarsus. 

 23759—30 2 



