220 Mr. F. W. Edwards' revision of 



in the middle and at the sides. Postnotum with narrow pale median 

 stripe. Pleurae, sternum, coxae and trochanters orange-yellow. 

 Abdomen of male with the first two segments mainly dark ; segments 

 3-6 as in fig. 9 ; segment 7 with a broad median dark stripe ; eighth 

 segment and hypopygium all yellow. In the female the abdomen is 

 darker, without any distinct markings, though there are pale areas 

 on the apical halves of the apical segments. Legs with the usual 

 narrow dark rings, which are sometimes not quite complete; all 

 the tarsal joints dark at the tip. Wings nearly clear, but there are 

 small dark suffusions round the R-M cross-vein, and at the base of 

 Cuj, though not on R2 + 3 or at the junction of Mj + 2 ^^^ ^3- The 

 vein M] + 0, the ascending portion of Cuj and the apex of Ax are 

 dark, but the darkness does not extend on to the membrane. Tip of 

 Ax variable in form, being either curved, angulated, or with a short 

 or long spur. 



Type in the Deutsch. Ent. Museum; paratypes in the 

 British Museum. 



Loc. Formosa : Tainan, 9 c? 5 $ ; Koshun, 1 (? 1 $ 

 {H. Sauter). The species has previously been identified 

 by Kiedel (1913) as S. crassicosta. 



18. S. javana, sp. n. 

 Figs. 8, 32 and 33. 

 Head yellowish; bristles yellow. Antennae yellow, with the 

 first segment dark beneath, the second entirely dark. Thorax 

 marked much as in 8. jacobsoni (fig. 6), but rather lighter. Abdomen 

 with segments 3-6 as in the figure ; second segment yellowish with 

 a pair of dark spots on the hind margin. Legs with the dark rings 

 reduced almost to spots on the upper surface; the subapical ring 

 on the hind femora and the ring in the middle of the hind tibiae 

 are only just perceptible as a slight darkening. Joints of hind 

 tarsi not at all darkened at their tips ; those of fore and mid legs only 

 slightly so. Tuft of black bristles at the tip of the middle tibia 

 not so distinct as usual. Wings with the usual dark spots; veins 

 not infuscated at their tips ; tip of Ax dark, bent backwards ; Mj + 2 

 scarcely darker than the other veins. 



Type in the Amsterdam Museum. 



Loc. Java : Nongkodjadjar {E. Jacobson), 1 ^. 



19. S. jacobsoni, sp. n. 



Figs. 6, 7, 34, 35 and 73. 

 Head as in 8. javana, except that the bristles are black. Thorax 

 marked as in fig. 6. Abdomen of male yellow with segments 3-6 



