Mr. W. L. Distant on Heteroptera. 499 



Allied to Hebrus, but differing in the more elongate body, 

 the spinous antenniferous tubercles, and the centrally ridged 

 head, pronotunij and seutellum. 



Timasius splendens, sp. n. 



Head, pronotum, and seutellum black ; pronotum with two 

 central small spots of ochraceous hairs on anterior marginal 

 area ; corium bluish grey, with the margins, apical angle, a 

 suboblong spot on disk, and the apex of clavus black ; 

 membrane dull blackish, with some greyish suffusions, the 

 most prominent of which is a central subapical longitudinal 

 line ; body beneath black ; legs ochraceous, the tibiae and 

 apices of femora and tarsi black ; antennje piceous or black, 

 with short fine hairs, second joint slightly shorter than first, 

 third and fourth subequal in length, each a little longer thau 

 fifth ; pronotum sparingly coarsely punctate ; seutellum 

 finely granulose, the central ridge prominent ; other struc- 

 tural characters as in generic diagnosis. 



Length 3 mm. 



Hab. Ceylon; Peradeniya (Greew). 



" On rocks in mid-stream" (jB. E. Green). 



Timasius airatus, sp. n. 



Black ; legs pale ochraceous, posterior tibiae pale piceous ; 

 head opaque, with two central carinse terminating about one- 

 third before apex, antenniferous tubercles spinously pro- 

 duced, eyes strongly granulose ; antennae ochraceous, pilose, 

 first joint longer than second, a little shorter than third, 

 fourth and fifth subequal in length, almost fused ; pronotum 

 with its disk considerably mutilated in typical specimen, but 

 apparently bicarinate, the lateral margins strongly sinuate, 

 the lateral angles roundly prominent ; seutellum longitudi- 

 nally carinate ; pronotum, seutellum, and corium shining 

 black ; membrane piceous black, opaque ; legs pilose. 



Length 2^ mm. 



Hab. Ceylon ; Madulsima [Bainbrigge-Fletcher). 



Fam. Hydrometridae. 



Microvelia albomaculata, sp. n. 



Dull piceous black with a greyish pubescence, which is 

 more pronounced and forms a marginal fascia to head con- 

 tinued inside eyes to base and a submargiual fascia to 

 pronotum ; a reddish-ochraceous anterior marginal fascia 



