284 



HALTICINJi. 



6. Antennae relatively long, with the [p. 296. 



third segment short Argopistes, Motsch., 



Antennae comparatively short, with [p. 301. 



the third segment the longest .... Argopistoides, Jac, 



7. Elytra regularly pnnctate-striate, the 



rows being placed at an appreciable 



distance apart 8. 



Elytra confusedly and sometimes ob- 



soletely punctate * 11. 



S. Punctures of the elytral striae tine ; 



interstices absolutely flat 9. 



Punctures of the elytral striae deep ; 



interstices slightly raised 10. 



9. Prothorax much broader than long, 



its base sinuate, the median basal 



lobe slightly produced Jacobyana, gen.n., p. 302. 



Prothorax quadrate, narrowed in 

 front, its base not sinuate : the 

 sides of the pronotum slope down 



sharply in front Lanka, gen. n., p. 304. 



10. First segment of antennae much longer; 



prothorax more transverse Eucycla, Baly, p. 305. 



First segment of antennae not so long ; 



prothorax less transverse Thryl^ea, Jac, p. 307. 



11. Antennae widely separated at their 



bases, which almost touch the inner 



margins of the eyes 12. 



Antennae not so widely separated ; 

 their bases, though not contiguous, 

 are well away from the inner mar- 

 gins of the eye,s . , 13. 



12. Small ovate insects (2 mm. long) ; 



antennae nearly half the length of [p. 309. 



the body Amphimeloides, Jac, 



Larger insects (3^ mm. long, 2 mm. 



broad) ; antennae short, not reaching [p. 310. 



beyond the base of the pronotum . . Parathrylea, Duviv., 



13. Posterior tibiae cylindrical (at most 



flattened a little dorsally at the 

 apex), their upper surface not chan- 

 nelled ; body convex, very finely 



and obsoletely punctate Chabria, Jac, p. 312. 



Posterior tibiae with their upper sur- 

 face either flat or slightly chan- 

 nelled near the apex 14. 



Posterior tibiae deeply channelled .... 19. 



14. Body hemispherical ; first segment of 



the posterior tarsi normal, i. e., very 



much shorter than the tibia 15. 



Body elongate or ovate ; first segment 

 of the posterior tarsi longer in 

 comparison with the tibia 16. 



* In some genera there may be a tendency of the punctures to form rows, 

 but irregularly, and the interstices are usually filled with confused punctures. 



