808 G. W. KIRKALDY 



on each side by an obscure reddish line. Legs , rostrum , etc., 

 brownish - black , the former darker at the base of femora and 

 apex of tibiae. Elytra with a longitudinal , interrupted whitish 

 stripe. Connexiva fuscous. Underside blackish. — Long. 15 mill. 



New Guinea: Fly River (L. M. D'Albertis, 1876-77); Rigo, 

 (Loria, July, 1889). 



Very closely related to H. lineata Eschsch. (= vittala Stài), 

 but in the latter the ultimate " abdominal " segment is sub- 

 parallel laterally, longer and narrower than in the new species, 

 and the anterior femora do not reach the apex of the head. 



12. Mesovelia orientalis, sp. n. 



?= M. furcata Breddin, 1899; J. B. Hamb. Wiss. Anst. , 

 XVI, p. 21 [sep.]. 



Macropterous : Elongate, about 3 1 / s times as long as wide, 

 length of head subequal to width (including eyes); ocelli about 

 as far from eyes as distant between themselves. First antenna! 

 segment 1 / 4 longer than the second, third 3 / 5 longer than second, 

 and fourtli twice as long as second. Pronotum 7 / 10 wider (across 

 the posterior angles) than long, thus more transverse than in 

 the other species. Intermediate femora armed beneath with acute 

 spines, tibiae twice as long as tarsi, first tarsal segment a little 

 longer than second. Posterior tibiae three times as long as tarsi, 

 first tarsal segment 2 /s longer than second. 



Dark stramineous: antennae, anterior half of pronotum etc., 

 sordid. Posterior half of pronotum, mesonotum etc., elytral ner- 

 vures, sordid pale purplebrown. Elytra whitish. 



Long. %1 mill., lat. 0,8 mill. 



Sumatra: Padan Panjan (0. Beccari). 



This genus is doubtless- far more generally distributed than 

 at present supposed. The winged forms are, in the Old World 

 at least, extremely rare, and the apterous individuals, which are 

 very local, but usually gregarious and numerous in their haunts, 

 assimilate so closely to the leaves of aquatic plants upon which 

 they congregate, that detection is not easy except to the inch - 

 by-ineh worker. 



