1893.] MR. E. E. AXJSTES^ OS NEW DIPTEROUS INSECTS. IGl 



portion of the spurious vein is bright oehreous, tinging the ad- 

 joining portion of the wing; the kink in the third vein is angular, 

 and situated slightly before the middle of the first posterior ceil. 



Brazil, region of the Amazons (Bates) : fiA'e specimens. 



This species is closely allied to Salpingogaster pygophora, Schin,, 

 but differs from it in the colour of the sides of the thorax and in 

 that of the scutellum. In the colour of the scutellum and the 

 markings of the dorsum of the thorax it agrees with Salpingo- 

 gaster nigra, Schin., but differs from that species in the face being 

 wholly yellow, as also in the colour of the sides of the thorax, of 

 the femora, and of the tibite, and in the peculiar shape of the 

 external genitalia of the S , in which it agrees w ith S. pggophora. 



Salpingogasteb minob, sp. n. (Plate V. fig. 4, $ .) 



2 . Length 12 mm. 



77iora,r ochraceous ahove, dull, with three dull hlach stripes ; 

 pleurae shining ochre-yellow, a narrow hrown stripe running from 

 the base of the wings to the middle coxce, and an indication of a 

 broader and darker but shorter one on each side of the meta- 

 notum; the metauoium not infuscated ; scutellum yellow, the disc 

 brown ; abdomen ochraceous, base of first segment yellow ; second 

 segment with a faint reddish-brown band on the basal third ; the 

 central portion of the fourth, fifth, and sixth segments, and 

 of the posterior half of the thii'd, dark brown ; the darker area is, 

 however, not sharply defined, and may be due to drying or to 

 matter contained in the abdomen. Wings with an ochraceous 

 tinge, which is deeper in the costal cell ; subcostal cell tawny, 

 the marginal cell, the distal third of the submarginal, the space 

 between the kink in the thii'd vein and the terminal portion 

 of the fourth vein closing the first posterior cell, as well as the 

 space outside this and outside the discal cell, brownish ; the basal 

 half of the spurious vein ochre-yellow, tinging the adjoining por- 

 tion of the wing; the kink in the third vein rounder than in S. 

 virgata, and situated slightly beyond the middle of the first posterior 

 cell; the 2^osterior cross-vein nearly straight: cdtda rudimentary. 

 Legs pale yellow, the posterior femora and tarsi ochraceous ; none 

 of the femora are grooved beneath,h\y.t the posterior pair have a 

 double row of short thin spines underneath towards the tips ; the 

 middle femora have no angular process at the tip beneath. 



The head is coiisiderably flattened antero-posteriorly ; face and 

 clieelcs wholly pale yellow, shining, facial tubercle small, sharp ; 

 proboscis ochraceous ; antenniferous projection well-marked, shining 

 black on the sides and above ; the posterior tliird of the front, 

 including the ocelli, which are remote from the vertex, shining 

 black; the antenniferous process is connected with this by a 

 triangular patch, the base of which, resting on the antenniferous 

 process, as well as a narrow median line, is metallic black, the rest 

 dead black ; on each side of the front below the ocelh is a narrow 

 yellow stripe, running into the yellow of the face ; antenna' ochra- 



Pboc. ZooL. Soc— 1893, No.'xi. 11 



