from the Oriental Zoological Region. 13 



be separated from the present by the first abdominal segment 

 being flat, not angled, it having also only a single narrow 

 keel down the centre ; the area on the base of second segment 

 is an equilateral triangle, small, the fourth segment is striated 

 to the apex, and the raised central part of the face forms a 

 large triangle. The central lobe of mesonotum, too, is 

 flatter, especially at the base. 

 Kucliing, Borneo. 



Oprionin^. 

 Zachresta nigromaculata, sp. n. 



Yellow, with the following black spots : — the ocelli, a large 

 mark in the centre of occiput gradually obliquely widened 

 below ; a broad line on the basal two thirds of mesonotum in 

 the centre, slightly dilated and rounded at the apex ; a line on 

 the sides, half in front and half behind the tegul», the two 

 united at the scutellum by a transverse line; two semicircular 

 marks on the base of metanotum ; a mark below the tegulte, 

 narrow and square above, gradually roundly widened below, 

 where it is transverse ; an oblique mark, rounded at base and 

 apex, on the mesopleurse at the apex close to the sternum ; a 

 broad band on the narrowed base of postpetiole, a broad one 

 on the middle of second segment, a triangular incision on 

 its base, the apex transverse ; the base of the others broadly, 

 with a spot on their sides; and a mark on the middle of the 

 third to fifth ventral segments. Antennas black, the scape 

 yellow below. Legs coloured like the body, a broad mark on 

 the base of the hind cox8e below, the basal joint of the hind 

 trochanters (except a narrow stripe in the middle above), a 

 stripe on the outer side of the femora at the base, their base 

 narrowly, and apex and the tarsi (except the basal half of the 

 metatarsus), black. Wings hyaline, the nervures and stigma 

 black ; the areolet minute, with a long pedicle, receiving the 

 recurrent nervure in the a])ex ; the transverse median nervure 

 received clearly beyond the transverse basal; the radius and 

 cubitus in bind wings very faint ; the posterior nervures 

 obsolete. $ . 



Length 9, terebra 1 mm. 



Sikkim. 



Tibige sparsely, the tarsi more thickly spinose ; the calcaria 

 long, about three fourths of the length of metatarsus. Head 

 and thorax closely, somewhat strongly punctured and covered 

 with white pubescence ; the metanotum almost rugosely 

 punctured ; the apical slope with a broad depression in the 



