ODONTOJITIA. 63 



Frons in tf orange, or if black, then facial 

 bump more or less orange ; postocular 



orbits in $ inappreciable 8. [p. 68. 



8. Frons and face all orange in both sexes .... dorsoangiulata, sp. n., 

 Frons and face black in both sexes ; 5 with 

 facial bump brownish orange solennis, Walk., p. 69. 



It is impossible to include viridana, Wied. (p. 72), in the table, 

 but it falls into section G, and my transversa may be identical with it. 



33. Odontomyia cyanea, sp. nov. 



c? $ . Head in c? with eyes bare, contiguous for nearly half the 

 distance from vertex to frontal triangle; upper facets rich brown 

 or violet-brown, lower ones black ; vertex black, with a few black 

 hairs ; the small frons and the face and lower part of head bright 

 orange, bare, shining ; antennae orange, 3rd joint from dull 

 orange-brown to blackish, tip generally darker, twice as long as 

 first two joints together, with four annulations and small yellowish 

 apical style ; proboscis black ; eye-margins developed on inner 

 lower edge of eyes, orange, with a little greyish pubescence ; no 

 postocular orbits, the facets running out to the extreme margin 

 above and at sides. In $ , frons one-third of head, orange, bare, 

 just perceptibly broader at vertex and towards antennas ; latter 

 rather longer than in c?; no postocular orbits. Thorax deep 

 blue, brilliantly shining metallic, closely punctulate, with micro- 

 scopic grey pubescence ; scutellum similar ; pleuras more blackish, 

 more or less tomentose pubescent, with a little longer grey 

 pubescence on mesopleura and sternopleura and below shoulders. 

 In four longitudinal, silvery-grey, subequai and equidistant 

 tomentose stripes, the two middle ones united on anterior margin ; 

 scutellum also covered with silvery tomentose pubescence. Abdo- 

 men in <$ deep blue, shining, minutely punctulate ; side-margins 

 and tip of abdomen apple-green, sometimes only narrowly (but 

 always continuously) so, but varying in width up to one-third of 

 the abdomen on each side. In $ as in g , but the green side- 

 margins always very narrow though continuous, but not including 

 the tip. which is always blue in this sex, whereas in 3 the green tip 

 of the abdomen is always continuous with the green side-margins. 

 Venter wholly apple-green in both sexes. Legs black, a little 

 silvery pubescence on outer sides of anterior tihise ; front tarsi 

 (especially the metatarsi) distinctly broader, thicker and shorter 

 than middle tarsi. Wings quite clear ; veins in anterior part of 

 wing brownish orange or yellowish ; stigma brownish ; the 3rd of 

 the faint veinlets issuing from the discal cell practically absent ; 

 halteres bright apple-green. 



Length, 6^-8 mm. 



Described from a long series of both sexes, mostly bred at Pusa, 

 26.iii. 1908, 2.ii. 1909, 3-18. iii. 1909. Types sent to British 

 Museum ; co-types in Indian Museum and my collection. 



