and Species of Heteromera. 19 



thorax, faintly striated, obsoletely so, or not at all, on the disk ; 

 the punctures large, irregular, ordinarily oblong ; frequently 

 two or three run together ; apically the arrangement of the 

 rows of punctures is the same as in H. tarda • intervals more or 

 less (but never at all strongly) convex, impunctate : prosternal 

 process wide, transversely rugose, broadly rounded behind, 

 strongly tricarinate, the central carina enclosed by the two 

 outer ; third and fourth ventral segments sinuously emarginate 

 behind : legs and underside shining black ; tarsi, palpi, and 

 antennae piceous ; anterior tibiae elongate, more curved near 

 the apex in the (^ . 



Length 6 to 7| lines. 



Hob. Rockhampton. Seven examples. 



A very distinct species, and at once to be distinguished from 

 all the others by the form &c. of the prothorax, especially by 

 the character of its lateral edges, as indicated above. 



Hypavlax ampliata^ n. sp. 



Oblong, broad, black, slightly shining. Labium broadly and 

 sinuously rounded and ciliate in front, the space between the 

 palpi rather wide, its face very convex and longitudinally chan- 

 nelled down the centre ; mentum naked, plane, transversely 

 cordiform, with the usual small wing-like expansion on each 

 side the apex at back ; mandibles broadly and squarely trun- 

 cated at apex ; gular furrow deep but not wide, very distant 

 from base of submentum ; cheek -furrow very short (almost 

 obsolete), scarcely extending beyond the upper comer of the 

 eye beneath : head and prothorax more or less distinctly but 

 very finely punctulate, most strongly so on the epistoma ; 

 epistomal suture distinct, arched, a little sinuous in the middle : 

 prothorax ample, transverse, subopaque, but little convex, di- 

 stinctly widest in front, apex very feebly emarginate, front 

 angle almost obsolete ; sides strongly rounded anteriorly, then 

 subparallel to behind the middle, thence rapidly contracted to 

 the hind angles, which are small, scarcely prominent, and 

 slightly outwardly directed ; base very broadly lobed in the 

 middle, and extending further backwards than the hind angles ; 

 lateral edges strongly thickened, except in front of the hind 

 angles, abruptly interrupted or notched immediately behind 

 tlic middle; scutellum convex, strongly transversely triangular : 

 elytra a little shining, broadly oval, moderately convex, di- 

 stinctly wider at base than base of prothorax ; base strongly 

 emarginate ; basal ridge very thick and prominent, and clearly 

 continuous with the sutural interval, the ordinary short scutellar 

 row of punctures either altogether absent or represented by a 

 single faint oblong impression : more or less faintly striated 



2* 



