Mr. W. L. Distant on Lygeide. 507 
Letheus assamensis, sp. 0. 
Dark chocolate-brown; head black; a spot near each 
anterior angle of the pronotum, two small spots in clavus 
(one about centre and the other near apex), and two small 
central spots to corium (one on central disk and the other at 
apical margin) ochraceous ; antennz fuscous, apical half of 
third joint ochraceous, fourth jomt mutilated; membrane 
pale brownish ; body beneath and legs very dark castaneous ; 
rostrum and tarsi brownish ochraceous 
_ Head opaque, impunctate; pronotum thickly punctate, 
with two transverse impressions (one angulated near anterior 
margin, the other straight at about one third from apex) ; 
scutellum thickly punctate, corium more sparingly punctate, 
its lateral margin for more than half from base brownish 
ochraceous and levigate. 
Long. 11 millim. 
Hab. Assam: Naga Hills (Doherty). 
Letheus maculatus, sp. n. 
Dark chocolate-brown, the corium sometimes a little 
lighter in hue; a small spot near each posterior angle of the 
pronotum, a similar spot near each anterior angle of the 
corium, the apex of the scutellum, and the basal half of the 
fourth joint of the antennz ochraceous; second joint of an- 
tenne and base of third joint somewhat palerin hue. Lateral 
margins of pronotum distinctly laminate. 
Long. 5 millim. 
Hab. Christmas Island (C. W. Andrews, Brit. Mus.). 
ARISTENETUS, gen. Nov. 
Head rather long, but shorter than the pronotum; ocelli 
situate near the eyes, which are well separated from the 
anterior margin of the pronotum ; basal joint of the antenne 
moderately incrassated and considerably passing the apex 
of the head, second joint longest, third subequal to first, 
fourth mutilated. Rostrum in the female extending to the 
disk of the second abdominal segment, basal joint about 
equal in length to the head. Pronotum trapezoidal, narrowing 
to apex, its lateral margins strongly sinuate; a distinct 
transverse impression near centre, the anterior lobe some- 
what glabrous, the posterior lobe coarsely punctate, the 
lateral angles rounded, subprominent ; scutellum moderately 
long and triangular; clavus with four series of punctures ; 
venation of membrane as in Letheus, with which the other 
characters generally agree. 
