192 



REVISIONAL NOTES ON AUSTRALIAN CARABIDAE. 



Part vi. Tribe Bbmbidiini. 



By Thomas G. Sloane. 



The position of the tribe Bembicliiui in the family Carubidcue is after the 

 tribe Merizodini, beside the Trechini; it may be defined brielly, hut sufifieiently, 

 as follows : — 



Anterior coxal cavities with a single opening inwards. Head with two 

 supraorbital setae on each side; mandibles with a seta in scrobe of outer side; 

 antennae with not more than two basal joints glabrous. Palpi subulate, maxil- 

 huy with penultimate joint pul)escent. Elytra with margin interrupted pos- 

 teriorly by an internal plica.* 



Table of Australian Genera. 



1 (4) Elytra with a scutellar strioJe at base of first inlerslice. Anterior 



tibiae not oblique at apex. 



2 (3) Ciypeus decidedly obliquely narrowed to apex. Elytra with striae punc- 



tate, fifth stria not uniting with marginal channel at base . . 



Bkmbidion. 



3 (2) Olypeus wide, hardly narrowed to apex. Elytra with fifth stria ex- 



tending in full depth to base and uniting with marginal channel. 



CiLLENCS 



4 (1) Elytra without a scutellar striirle. Anterior tibiae oblique above apex 



on external side. 



5 (8) Eyes present. 



6 (7) Upper surface glabrous, except for the usual fixed hairs. f .. TACHre 



7 (6) Upper surface setulose. Eyes small; distant from buccal fissure be- 



neath LlMN.\STIS 



8 (5) Eyes wanting Ti.i.aphanus 



Genus B K M B I D I o x. 



Latreillc. Hi<t. Nat. Ins.. iii.. 1802, p. 82. 



Latreille's name Bemhidiun was by later autliors latinised to Bembiilium, 

 and in the Munich Catalogue of 18C7 was emended to Bembicidium; recent 

 opinion favours a return to Latreille's original name. In the Catalogus Coleop- 



•In T(ic1n/n m<u:Irnyi SI., the internal plica is practically obsolete. 



fDr. Walther Horn has proposed the term "fixed" for those setae aiwi hairs 

 usually designated "tactile" or "sensitive" hairs: the term "fixed" appears to me 

 the best, and is used throughout this paper iCf. Horn W., in Wytsman's Gen. 

 Ins., Fasc. 82c, Cicindeliiuie , 1915, p. 212.) 



