438 LT.-COL. C. T. BIXGHAM ON EXOTIC FOSSORIAL 



very long and thick, the scape laterally compressed, somewhat 

 flattened, front concave, frontal furrow vpell-marked ; ocelli large 

 and prominent ; pronotum very short, rather square anteriorly, 

 arched behind ; scutellum and postscutellum laterally compressed ; 

 median segment long, rounded posteriorly, with a very gradual 

 slope to its apex, smooth, with only a few transverse striae ; legs 

 long, the tibiae and tarsi only slightly spinose; claws unidentate ; 

 abdomen vertically compressed, the transverse furrow on the 

 2nd ventral segment barely indicated. Head and thorax black ; 

 the femora, tibiae, and tarsi of the legs light ferruginous ; abdomen 

 ferruginous red ; the mandibles except at their apex, the clypeus 

 except a spot in the middle, the face below the antennae, and the 

 inner margin of the eyes, not reaching the vertex, pale yellow; the 

 antennae beneath and the anterior coxae in front fulvous, the 

 base of the abdomen fuscous. The head and thorax are covered 

 with a glistening silvery silky pile, and in certain lights the 

 apical margins of segments 1-4 of the abdomen above are seen 

 to be broadly darker in colour. Wings subhyaline purplish brown, 

 with clear hyaline spaces in the 1st discoidal and 2Qd submedial 

 cells of the fore wing, and in the anal and discoidal cells of the 

 hind wing. 



c?. Length 15 millim. ; exp. 34 millim. 



Sah. Tenasserim. 



A very distinct little species. 



Genus Macromeris, Lepel. 



Macromeris castakea, sp. nov. 



$ . Head and thorax in front pruinose, median segment 

 coarsely rugose; legs and the abdomen smooth and shining; 

 clypeus large, subconvex, covered with long pubescence, its 

 anterior margin arched with a waved outline, the middle produced 

 into an acute tooth with a blunt rounded projection on each side ; 

 mesonotum convex ; scutellum and postscutellum raised, promi- 

 nent, the latter tuberculate in the middle ; median segment 

 rounded, steeply sloped posteriorly, coarsely cribrate ; the 

 mesonotum at apex, the sides of the scutellum and postscutellum, 

 and the thorax beneath the wings obliquely striated, the latter 

 below, in front of the intermediate coxae, produced into prominent 

 lateral tubercles ; the wings have the radial cell in the fore wing 

 large and rounded at apex, the 1st recurrent nervure is received 

 in the apical third of the 2nd cubital cell, and the 2ad recurrent 



