MONACAXTnOilYIA. 



23 



Genus MONACANTHOMYIA, Bnai. 

 Monacanthomijia, Bruiietti, Rec. Ind. Mas. vii, p. 448 (1912). 

 Genotype, 2Ionacanthomi/ia annanJcdei, Brun. 



Allied to Fachygaster, Mft-., from Avhich it differs by the for- 

 mation of the scutellum, wliicli is produced 

 upwards so as to form a very large conical 

 base, from which it is continued upwards 

 in the form ot:" a long strong spine with 

 blunted tip. It differs from the alhed 

 Acraspidea, Brauer, by the iird autennal 

 joint being large and round instead of fili- 

 form and longer than the bend. The type- x,_Monacanthomyia 

 species IS the only one known. avnandaUu Brim., 



Range. India. scutellum in profile. 



4. Monacanthomyia annandalei, Brun. 



Monacanthomyia annandalei, Bnmetti, Rec. Ind. Mus. vii, p. 448 

 (1912). 



c? . Head with A'ertex triangular, elevated, the three ocelli 

 distinct, reddish ; frons between one-fourth and one-fifth width of 

 head, nearly linear, shining black, with (seen from above) two 

 small, nearly contiguous, oval, silvery-grey-dusted spots a little 

 above the antennsB ; eyes with very small uniform facets ; face 

 shining black, lower eve-orbits silver-dusted ; back of head black- 

 ish, lower posterior eye-orbits with silvery reflections and a few 

 very short snow-white hairs. Proboscis short, narrowed at base, 

 pointed at tip, yellow, microscopically pubescent. Antennae 

 yellow ; third joint very large, round, with a rather long apical 

 thickened bristle. Thora.v shining black, with microscopic grey 

 hairs, which on the dorsum are intermixed with (or possibly wholly 

 replaced by) yellow liairs, all microscopic. Scutellum shining 

 black, with microscopic whitish and a few yellow liairs. Abdomen 

 shining black, with microscopic snow-white hairs; venter similar; 

 genitalia very minute. Legs with basal half of coxae and a broad 

 band occupying nearly all the femora, except base and tips, black 

 or blackish brown, remainder of coxae and femora yellowish ; tibiae 

 and tarsi white. Wings very pale grey, highly iridescent ; stigma 

 yellow ; basal half of costa and 1st longitudinal vein much blacker 

 than the remainder of the veins ; halteres with the stem yellowish, 

 the club milk-white, rather large. 



Length, 2 mm. 



Described from a perfect J in the Indian Museum, captured 

 by Dr. Annandale at Kurseong, Darjeeling District, 4700 ft., 

 15. iv. 1911, on a window. 



