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Ononyctus sulcatus, n. sp. 



Elongate-ovate; above dull black (elytra rather more nitid 

 than pronotum), under-side and legs nitid-black, apical joints 

 of antennae piceous-red, tarsi clothed with golden tomentum. 



Head distinctly and evenly punctate; epistoma truncate, 

 limited behind by narrow straight furrow, the sides obtusely 

 angulate with canthus, the latter rounded and little raised; 

 eyes transverse, bordered by a wide and rather deep sulcus, 

 this enlarged in front; forehead 

 flat; antennae extending beyond 

 base of prothorax, joint 3 as long 

 as 4-5 combined, 4-7 obconic, 8-10 

 short, transverse, and spheroidal, 

 11 ovoid one and a half times 

 longer than 10. Prothorax 5 x 5f 

 mm., widest at middle, truncate 

 at apex, with narrow anterior 

 angles moderately produced and 

 subacute (border thickened and 

 apex blunted); sides gently and 

 evenly rounded, sinuate behind ; 

 posterior angles slightly produced 

 and subacute; base truncate; 

 lateral border thickened towards 

 apex and base, widely but not 

 deeply channelled within; disc 

 rather convex and smooth, 

 minutely punctate (perceptible 

 only under lens, punctures much 

 smaller than on head), a thin 

 depressed medial line terminating 

 in a shallow depression near base. 

 Scutellum very transverse. Elytra 

 obovate and very convex, twice as 

 long as prothorax, wider than it 

 at base ; epipleural fold reflexed 

 and rounded at shoulders; sides 

 ovally widened to near apex, 



then abruptly narrowing ; apical declivity steep ; lateral border 

 and channel narrow, punctate-sulcate with eight rows on each 

 elytron of subfoveate punctures, besides a row of elongate 

 punctures in lateral channel, the seriate punctures separated 

 by transverse and sometimes reticulate septae, the first seven 

 intervals (including the sutural) forming wide subcrenulate 

 costae, third and fifth connected on apical declivity, the two 

 sutural costae bifurcating behind scutellum and forming a 

 triangular excavation with a few (about four) large punctures 



Ononyctus sulcatus, n. sp. 



