47G Mr. W. L. Distant on Austrahisian PentatomidEe. 



TnOLOSANUS. 

 Tholosanus, Dist. Aun. vt Mag. Nat. Hist. (7) iv. p. 432 (1899). 

 Type, T. proximus, Dall. 



Tholosanus piceatus, sp. n. 



Above pitchy black ; anterior lateral margins of the 

 pronotum, base of lateral margins to corium^ and lateral 

 maro-ins to connexivnm ochraceous ; body beneath and legs 

 ochraceous, a small black spot on the lateral areas of each 

 sternal segment, abdominal spiracles black ; head broad, 

 about as long as breadth at base, the margins somewhat 

 strongly reflexed, wrinkled and punctate ; antennae black, 

 first joint more or less castaneous, not reaching apex of 

 head, second joint distinctly longer than the third, second, 

 fourth, and fifth subequal in length ; pronotum thickly 

 finely punctate, distinctly and somewhat more palely wrinkled 

 on basal half, the lateral margins narrowly reflexed, the 

 anterior angles slightly but distinctly angularly prominent, 

 posterior angles rounded ; scutellum a little longer than 

 broad at base, thickly, finely punctate and more or less 

 transversely w rinkled ; corium thickly finely punctate ; 

 membrane reaching or very slightly passing abdominal apex ; 

 rostrum reaching the posterior coxae, first joint not quite 

 reaching base of head, second extending to anterior coxae, 

 third about reaching intermediate coxae. 



Long. 10^ mm. 



Hab. Tasmania; Hobart [A. M. Lea, Brit. Mus.). 



Allied to T. proximus, Dall., but with the scutellum 

 distinctly more attenuate posteriorly, different colour, &c. 

 T. proximus has also been received from Tasmania. 



Kalkadoona, gen. nov. 



Head about as long as breadth between eyes, moderately 

 deflected, distinctly broadest at base, lateral margins strongly 

 .sinuate, the lateral lobes distinctly longer than the central 

 but not meeting bejond it, apically widened, anteriorly 

 somewhat obliquely truncate and marginally reflexed; ocelli 

 near base and much nearer eyes than to each other ; 

 antennae with the first joint almost reaching apex of head, 

 second longest, third a little shorter than either fourth or 

 fifth ; pronotum deflected towards head, twice as broad 

 between the humeral angles as median length, the posterior 

 angles prominent and broadly subacute, lateral margins 

 concavely sinuate, anterior and posterior margins truncate, 



