242 Transactions. — Zoology. 



covered with short grey and black hairs. Wings covered all 

 over Vi'ith short black hairs. Veins brown, distinct ; second 

 longitudinal vein nearly straight before junction with cross- 

 vein, afterwards arcuated ; transverse cross-vein about one- 

 sixth length of fii'st longitudinal from point of origin of trans- 

 verse vein to junction with costa. 



I have at present only a single specimen of this distinct 

 species, which was captured at the foot of Mount Torlesse 

 early in March. 



Section II. 



Wings with four longitudinal vems. 



Sub-family II. LESTEEMINA. 



Wings with at least four longitudinal veins, or at' most five ; 

 sometimes a rudimentary vein behind the fifth. The addi- 

 tional vein is placed between the two veins corresponding 

 to the second and third of the first sub-family, and is 

 generally furcate. Ocelli nearly always present. First 

 tarsal joint not shortened. 



I. Ocelli extant. 



A. Wings with four longitudinal veins ; the third not furcate ; 

 the fourth furcate, representing the fourth and fifth longi- 

 tudinal veins of other genera coalescent for the first half of 

 their course. 



Genus I. Campylomyza, Meigen. (Plate VII., fig. 1.) 

 Antennae 2 + 6 to 2-|-23 jointed, moniliform, verticillate; joints 

 ovate, lentiform, or cylindrical, with long pedicels in the 

 male and sessile in the female, or sessile in both sexes. 

 Wings large, considerably rounded at the apex ; in some 

 cases the base of the wing is cuneiform, in other cases the 

 posterior angle is prominently rounded ; hairs often scaly ; 

 long cross-vein. 



A. Wings cuneiformly narroioed at the base. 



Campylomyza tenuis, n. sp. Bodv, 0-038 x 0-013 ; antennae, 



0-027; wings, 0-049 x 0025." 



Antennae grey, 2 + 9 joints ; basal joints of flagellum 

 rather large, globose, not quite so long as their pedicels ; 

 gradually decreasing in size towards the apex ; ornamented 

 with long verticils directed forward and just reaching a little 

 beyond the base of the succeeding joint. Thorax short and 

 broad, black or dark-brown, but paler on the lateral margins ; 

 a few long black hairs arise from its surface. Scutellum 

 large, semicircular, grey. Halteres white, with very elongated 

 pyriform clubs, on which some black hairs are situated. Ab- 

 domen pale, testaceous, with black hairs scattered over its 



