EllISTALlS. ITii 



mainly _yeUo\v on jiuterior halt", but witli a central black spot, 

 ■which is more or less diamond-shaped, generally just touching 

 anterior margin with its upper angle, while the lower angle is 

 joined more or less broadly to the black hind part of the segment ; 

 extreme hind edge of latter yellow. Hind niargin of 4th segment 

 narrowly but distinctly yellow, orange- or reddisli-broun. Pubes- 

 cence mainly following ground-colour, but brownish-yellow on 4tli 

 segment and wholly yellow at tip. Venter yellowisli on basal half, 

 with an indistinct median blackish stripe, hinder half black ; 

 pubescence pale yellow throughout. In j , the triangular spots 

 on the :2iul abdominal segment do not occupy quite so much of the 

 side margins, and they mirrow i-apidly on the inner side, partaking 

 more ot" the nature of elongate spots with parallel sides, broadening 

 suddenl}^ towards side margins. The amount of yellow on the ^Jrd 

 segment is much reduced and the black median spot in that part 

 is broader and more irregular in shape. Legs shining black; tips 

 of femora narrowly, tibiae on about basal half, a little more than 

 half on middle pair, anterior farsi to a greater or less extent at 

 base, yellow or orange. Pubescence pale yellow, but some short 

 black hairs intermixed on black parts of tibiae and tarsi. Winris 

 nearly clear ; yellowish at base and on costa ; stigma blackish- 

 brown, and the surrounding surface of the wing has the faintest 

 brownish-yellow suffusion in this region ; halteres yellow. 



Leiu/th, 11-12 mm. 



Described from a lai-ge series of both sexes in the Indian 

 Museum, and in the Pusa, my own and other collections, from 

 hilly regions in India, Jiurma, Assam, West China and Japan. 

 Appirently conunon in the Himalayas throughout most of the 

 summer; occurring at least at Himla as early as April (Nurse). 

 The unique ti/jie cf of barlxdus in Bigot's collection is in wretched 

 condition, but it is undoubtedly only soJltvs, Walk, 



Type in British Museum. 



i:j'J. Eristalis teuax, L. 



Muscii teua.v. Liniueus, Syst. Nat. Ed. 10, p. .")!)! (17.")S). 

 Eristalis <ert«.i-, Ven-iill, Biit Flies, iSyrjjh. p. oOo, tigs. 3o0 ."joi' : 



aii(!tt. var. 

 Musra porcina, De (Ai'nv, Ins. vi. p, 98 (1776). 

 Mtisra arhit.s/oruin, Scliraidc, lOiniiii. ins. Austr. p. 902 (17''^1). 

 Coiiops rii/f/aris, Scopoli, I'hit. L'arii. p. 9(50 (I7<).'{). 

 Cofiops fi/.icus, Scopoli, l-'.iil. (Jam, p. 9(il (i7();)). 

 Eristalis rinn/x'sfrii, Mcijicn, Syst. JJeschr. iii, j). o87 (1822). 

 Eristalis Uortorum, Muigen, loc. fit. 

 Eristalis si/lnaticus, Moi^^'en, op. cit. p. 388. 

 Eristalis riilpiuus, .Meijrt'ii, loc. cit. 

 Var. alpinus, Strobl, Mitt. Ver. Steicrin. xxix, j). is,") (1893). 



S $. I[<'(t(l: I'yes pubescent, willi two longitudinal stripes of 

 denser brown hair down the middle of each eyt^ N't-rtcx with 

 black JKiirs ; frous and face covered with yellowish tomentum. 



