TACHTTES. 189 



far as the Gambia. 2 . Length 20 ; exp. 32 mm. S • Length 16 ; 

 exp. 32 mm. 



366. Tachytes saundersii, n. sp. 



$ . Head — the eyes strongly convergent above, the front and 

 clypeus densely, the base of the mandibles and the cheeks thinly 

 pubescent ; the vertex punctured, divided by a conspicuously im- 

 pressed longitudinal line ending in a deep semicircular furrow 

 behind the posterior ocelli ; thorax with a short, moderately dense 

 pubescence, the surface underneath very minutely and closely 

 punctured, giving it an opaque velvety appearance ; median 

 segment slightly more coarsely punctured, with a medial lon- 

 gitudinally impressed 'line from base ending in a shining sub- 

 triangular fovea on the verge of the rounded posterior portion 

 of the segment; legs densely pilose; abdomen shining, the dorsal 

 surface obscurely aciculate; the posterior margins of abdominal 

 segments 1-4 above with trausverse broad bands of silky pile ; 

 pygidial area large, clothed with dense stiff pubescence. Intense 

 black ; the pubescence on the head and the dense pile on the tibiae 

 and tarsi of the legs of a rich glittering golden coloui', on the thorax 

 and median segment it is fuscous black, with a rufous tint in 

 certain lights ; the bands on the abdomen are silvery and the stiff 

 hair on the pygidial area, with the tibial calcaria and spines on the 

 legs, ferruginous ; wings flavo-hyaline, with a rich golden effulgence 

 in certain lights. 



(S similar but smaller ; the tibiae and tarsi of the anterior and 

 intermediate legs, and the femora, tibiae, and tarsi of the posterior 

 legs I'eddish ; the pubescence on the pygidial area silvery. 



Var. The legs entirely black. 



Hah. Tenasserim. 5 . Length 20 ; exp. 41 mm. S . Length 

 15-17; frj^ 32-35 mm. 



367. Tachytes sinensis, Smith, Cat. iv, p. 299, 9; Eohl, Verh. zool- 



bot. Ges. Wien, 1884, p. 407. 

 Tachytes rothneyi, Cam. Mejn. Manch. L. Ph. Soc. (4) ii, 1889, p. 139. 



$ . Head and thorax densely pubescent, the pubescence long 

 and silky on the clypeus, the face in front, and the median seg- 

 ment, shoi-t, thick, and close on the pro- and mesonotum, the 

 pleurae, and legs ; on the scutellum, which is large and prominent, 

 it is rather thin and fine; the surface of the heail and thorax 

 under the pubescence closely and finely punctured ; median segment 

 short, abruptly and steeply rounded posteriorly, with a fine medial 

 longitudinal furrow at apex not extending to the base of the 

 segment ; abdomen smooth and shining, with transverse pilose 

 bands, which widen laterally on the apical margins of the basal 3 

 (sometimes basal 4) segments ; pygidial area large, densely pu- 

 bescent. Black, the spines, calcaria, and claws of the legs ])ale 

 ferruginous ; the pubescence on the head and thorax golden 

 yellow, the transverse bands on the basal segments of the abdomen 

 silvery, the short stiff" pubescence on the pygidial area ferruginous ; 

 wings flavo-hyaliue, nervures and tegula; rufo-testaceous. 



