neic genera and species of Tenebrionidce. 275 



obliquely declivous behind, the apex narrowly rounded ; 

 triangularly depressed behind the scutellum ; each with 

 four (the outer one close to the margin) slightly elevated 

 costje, Avhich are somewhat flexuous and connected behind 

 near the apex, and an elevated sutural line, little distinct 

 except near the base bordering the scutellar depression ; 

 these costaa put forth lateral branches which form an 

 irregular open network of costiform lines, the interstices 

 slightly concave and more or less punctured ; sides very 

 narrowly margined and feebly reflexed : prosternal process 

 horizontal, plane or slightly convex, prominent and ob- 

 tusely pointed behind, margined at the sides and faintly 

 imi- or trisulcate down the middle; mesosternum sub- 

 vertical in front and broadly concave : intercoxal process 

 normal : epimera of mesothorax posterior, Avidest within ; 

 the episterna quadrangular, broadly attaining the sides 

 of the mesothorax : tliird and fourth ventral segments 

 broadly emarginate behind, their coriaceous hind margins 

 broadly visible : underside (including the flanks of the 

 prothorax) finely punctured : epipleural fold plane or 

 concave, smooth, not visibly punctured : abdomen finely 

 punctured, faintly (except at the sides) longitudinally 

 rugose : legs 'smooth, finely and not closely punctured. 



Hab. — New South Wales. Five examples. 



As the antennre and tarsi in this genus have not yet 

 been described, I will here state what they are in the 

 present species ; in my solitary example of N. obesus, the 

 antennae — as in the type specimen — are Avanting. 



Antenna moderate, very slightly compressed; joint .3 

 elongate, 3-1 1 perfoliate and hisped at apex ; 4-7 gradually 

 a little shorter and broader, obconic, 8-10 shorter, trans- 

 versely oval, 1 1 large, ovoid : tarsi filiform, tomentose (and 

 the four posterior channeled) beneath, glabrous above ; last 

 joint of all elongate, first joint of the posterior longer than 

 the two following united. 



N. reticulatus may be at once distinguished from obesus, 

 Guerin, and Mastersii, ISIacleay, by the non-rugose pro- 

 thorax ; and from elongatulus, Macleay, by the pro- 

 thorax being much wider than long. 



Hypocilibe, n. g. 



DijBPers from Nyctozoilus, Guer., in having the gula 

 deeply transversely sulcate ; sides of submentum produced 



TRANS. ENT. SOC. 1872. — PART IV. (DEC.) U 



