AET. 9 DIPTERA FROM AMEEICA, ASIA, AND JAVA ALDEICH 27 



than the parafacial, its tip widened about as in the male but the 

 basal part not protruding noticeably in the vicinity of the arista. 

 Palpi as in the male. Fourth abdominal segment distinctly red in 

 ground color, shining in some lights over most of its surface. Gen- 

 italia simple. Front tarsi a little widened from the second joint, 

 the claws and pulvilli very small. 

 Length, 6.2 mm. 



Type. — In the British Museum of Natural Histor3\ 

 Remarhs. — Described from one male and one female, reared in 

 Trinidad, West Indies, by F. W. Urich, from pupae of Calyodes 

 ethlius Cramer. The specimens were received from Sir Guy A. K. 

 Marshall, director of the Imperial Institute of Entomology, in 

 London, to whom they are returned for ultimate deposit in the 

 British Museum. 



Genus ACHAETONEURA Brauer and Bergenstamm 



Achaetoneura Brauer and Bergenstamm, Zweifliigler des kaiserl. Museums zu 

 Wien, pt. 5, p. 334, 1891 (Denkschr. kaiserl. Akad. Wiss., vol. 58). — Webbeb, 

 Proc. U. S. Nat. Mus., vol. 78, art. 10, p. 1, 1930. 



ACHAETONEURA NIGRIPALPIS, new 8P«cies 



Entirely black, including antennae, palpi, and scutellum. 



Female. — Front at vertex 0.3, 0.31 (in the two specimens) of the 

 head height. Head with silvery pollen tinged with light yellow on 

 the front; third antennal joint two and one-half times the second. 

 Arista slender, bare, third joint very slightly thickened basally. 

 Parafacial a little wider than third antennal joint. Facial ridges 

 with rather small bristles extending to middle of third antennal 

 joint. Cheek one-fourth eye height. Thorax gray pollinose with 

 four black stripes, the inner pair abbreviated behind and the outer 

 interrupted at suture. Scutellum subshining black at base. Acro- 

 stichal, 3, 3; dorsocentral, 3, 4; scutellum, with 3 lateral pairs of 

 bristles, the apicals rather strong, decussate, depressed; sterno- 

 pleural, 2, 2, the anterior of the hindmost somewhat hairlike; pro- 

 jjleura bare. First abdominal segment black, the second and third 

 black on apical two-fifths, their bases with smooth gray pollen which 

 is sharply defined behind; fourth segment wholly pollinose with a 

 slight yellow tinge. No discals on second and third segments, a pair 

 of marginals on first and second, marginal row of six on the third ; 

 fourth with a row of bristles in the middle, the marginals small and 

 inconspicuous. Venter with a somewhat reddish tinge. Legs black ; 

 anterior tibiae with two posteroventral bristles; middle tibiae with 

 two large anterodorsal, two small posterodorsal and one ventral; 

 hind tibiae with a complete row of small bristles on posterodorsal 

 side, one in middle slightly larger. Anterior tarsi with third and 



