64 SXRATIOMYID^. 



34. Odontomyia rufoabdominalis, Bnui. (PI. I, fig. 24.) 



Odontomijia rufoahdoniinalis, Bniuetti, llec. lud. Mus. ix, p. 205 

 (1913). 



6 $ . Head black, a little shiniug : eja^s bare, absolutely con- 

 tiguous for a short space, leaving a very elongate narrow vertical 

 triatigle ; vertex considerably prominent, witii a few black hairs ; 

 ocelli pale yellowish ; face but little prominent, with short black 

 and grey liairs ; antennae black, 1st and 2nd joints normal, 1st 

 black, 2nd dull brownish (3rd missing) ; two small tufts of grey 

 hairs innnediately above antennae, and a trace of grey hairs along 

 the sides of face. In 5 , frons one-third of head, sides parallel, 

 and with face wholly slightly shining black, with sparse short 

 black pubescence ; the ground-colour similar to that of the thorax ; 

 ocelli very distinct, wide apart, brownish yellow, ocellar bump 

 large, moderately elevated; mouth-opening, proboscis, palpi, and 

 lower part of head black. I'liorcav black, with minute white 

 ])atches, slightly shining, dorsum and sides with moderately thick, 

 not long, black and grey hairs, set in minute black sockets, which 

 o-ive the dorsum a granulated appearance, often two or three 

 hairs emerging from the same socket ; small patches or bunches of 

 grey hairs occur around the base of the wing and on the pleurae. 

 Scutellum clothed like the thorax, with a fringe of rather ragged 

 grey hair on posterior border and a short blunt spine at each hind 

 corner. Abdomen : ground-colour of 1st and 2nd segments and 

 major portion of 3rd, 4th, and 5th black, a little shining ; the sides 

 of the dorsum, nearly from the shoulders to the extreme tip, and 

 the hind margins of the 3rd, 4th, and oth, and the bulk of the Gth 

 segment all bright reddish orange with concolorous pubescence ; 

 the black parts with sparse black pubescence ; a small patch of 

 greyish hairs on hind corners of 2nd segment, and some yellow 

 hairs extend along the narrow red side-edges of the abdomen, 

 nearly or quite to the shoulders. Venter dull reddish orange, 

 becoming briglner towards tip ; central part of most of the seg- 

 ments more or less black ; pubescence wholly reddish orange, 

 short, depressed. Legs black, with a little short greyish hair ; 

 under and inner sides of tibite towards tips and about the apical 

 half of the anterior and the whole of the hind tarsi (the latter 

 lengthened), orange-yellow, \\ ith short golden pubescence. Wim/s 

 yellowish grey ; stigmatic region black ; major portion of middle 

 of \\ing from anterior to posterior border darker brown, the colour 

 fading away gradually; halteres buff; thoracic squamae milk- 

 white, with concolorous soft hairs. 



Length, 17 mm. 



Described from a cJ, Darjiling, 1000-3000 ft., vi. 1912, and 

 a 2, 8ingla, Darjiling Dist., 1500 ft.,, v. 1913, in the Indian 

 Museum, 



A very handsome and conspicuous species. 



