98 MYCETOPHILIDjE. 



Mycetophila maculipennis, Say, Long's Exped. St. Peter s liiv., App. 



p. 365 (2) (1824). 

 Leia trifasciata, Walker, List Dipt. Brit. Mus. i, p. 93 (1848). 



cf $ . Head yellowish, vertex light brown ; palpi yellowish ; 

 antennal scape and the two or three basal flagellar joints yellowish, 

 the remainder brown ; scape with bristles at tip of each joint. 

 Thorax brownish yellow, with three distinct dark brown stripes, 

 well separated, the median one reaching the anterior margin and 

 distinctly divided in front ; the outer stripes shorter, but con- 

 tinued to the posterior margin. Scutellum yellow, brown in the 

 centre. Abdomen : in male brownish yellow, posterior borders of 

 segments with a broad dark brown band, varying in breadth and 

 intensity, often narrower in the middle ; in female nearly all black 

 or blackish brown, or only the fore borders narrowly, or anterior 

 angles of segments shortly pale ; in both sexes with pale pubes- 

 cence. Belly in male yellowish, in female blackish. Genitalia of 

 male large and conspicuous, light brownish yellow ; a large 

 obtusely conical basal joint to the claspers, the second joint 

 terminated by two large strong black claws, the basal joints 

 united at their bases above. There is also a pair of bright yellow 

 intermediate palp-like organs. Ovipositor of female apparently 

 normal. Legs brownish yellow, tips of femora more broadly, tips 

 of tibiae rather narrowly black, the latter with three rows of setas ; 

 tibial apical spurs long, reddish yellow ; tibiae a little blackish 

 yellow, tarsi darker. Wings distinctly yellowish, a brown suffu- 

 sion over the anterior cross-vein and petiole of 4th longi- 

 tudinal vein, over the basal section of 3rd vein, and a longer spot 

 from the costa just beyond tip of 1st longitudinal A r ein extending 

 nearly to the anterior branch of the 4th vein, and another spot at 

 tip of 3rd vein. Anterior cross- vein rather long, basal section of 

 3rd vein short, the vein originating towards tip of 1st vein. The 

 4th vein forks a little beyond the anterior cross-vein, the branches 

 parallel ; the 5th vein forks before the basal end of the anterior 

 cross-vein, the branches diverging ; 6th vein very short, indis- 

 tinct, 7th moderately long, distinct. 



Length 3-5 millim. 



Eedescribed from several specimens of both sexes in the Indian 

 Museum from the following localities : 



Simla, 25.iv. 07, S.v.07, 10. v. 09, Matiana, Simla district, 

 28-30. iv. 07 (all Annandale) ; Naini Tal, 2.vi.09, Darjiling, 

 5. viii. 09 (Paiva), 29. v. 10 (Brunetti) Ukhrul, Manipur (Petti- 

 qrew). The species also occurs in Sumatra, Europe, and North 

 America. 



Type. The location of this I have been unable to trace. 



This species is apparently confined to the hills in eastern 

 regions, though it is not uncommon throughout Europe. Van der 

 Wulp in his " Catalogue of South Asian Diptera" records it from 

 Mid-Sumatra, a female being taken on the Peak of Indrapoera 

 almost identical with the European form. 



