1909.] 35 



been previously described. The only specimen o'( flaolcoxa, Ztt., which 

 I obtained, has seven scutellar bristles, instead of the normal six. The 

 specimen is a ? . Both fuscinervis, Wood, and campestris, Wood, I 

 found commonly at Bonhill and Cardross. Of rufa, Wood, 1 have seen 

 four ? ? and one ^ . The ^ is the only one so far met with, and Dr. 

 Wood, who described the species from the ? only, after examination, 

 agrees with me in my determination of the specimen, though it has 

 only two distinct scutellar bristles. In some cases the sexes differ in 

 this respect, but not to such a degree as represented in rufa. The 

 two species albicans, Wood, and spini(jera, AVood, are other cases in 

 point. Of rata. Wood, and albicans. Wood, I only got one each, but a 

 few specimens of ruficornis, Mg., were taken, one of them being 

 abnormal, the costal divisions being different in length from the type 

 of rvficornis. Ur. Wood considers that it is merely a variation which 

 is occasionally met with in some species. The new species, /«»»rt^rt, I 

 have met with on the hill here (Bonhill) early in April, and Dr. Wood^ 

 who has examined the specimens, informs me that the species is 

 unknown to him, so I purpose describing it that, should it exist in 

 other collections, it may be recognised. 



Phora (Aphioch^ta) fumata, n. sp. 



S ? . Dull black, froiis strongly bristled, under pair of supra-antennal bristles 

 scarcely weaker than the strong upper pair; antennte n;oderately large ; palpi large, 

 blackish-brown, and strongly bristled in both sexes ; mesopleura) bristly ; scutellum 

 with four bristles, the hinder pair much stronger than the front pair in the c? j and 

 placed so close at their bases that, unless in some positions, it appears that there are 

 only two scutellar bristles, in the $ the front pair of bristles are reduced to mere 

 hairs ; ^ abdomen with the last 2 segments with several marginal bristles ; hypo- 

 pygium modei'ately large, anal protuberance dark brownish and of moderate size j 

 halteres blackened ; legs brownish-yellow to almost black ; front tibia usually paler, 

 hind tibial cilia moderately sti'ong ; front tarsi dilated, viewed from above the first 

 joint of the tarsus narrower than the next four joints, which are of almost equal 

 width; wing smoky, veins infuscated, fourth vein as distinct as the others, costa 

 to beyond the middle of wing, first division about Ij the second in the <J , about 

 H in the ?, costal fringe long, first thin vein leaving the thick vein at almost the 

 fork, almost straight, and hardly recurved at the margin of the wing. 2^ — 2j mur 



Differs h'om projecta, Becker, in the much darker colour over all, 

 in the bristly palpi, in the unequal size of the scutellar bristles, 

 and in the peculiarly dilated front tarsi. In projecta, as in most 

 other species with dilated tarsi, the first joint is generally broader 

 than the other joints. There is no other species that fumata 

 may be confounded with in the section with four scutellar bristles, 

 but as the peculiarly placed bristles in this species may cause one to 



