152 THE CAHADIDAK OF TASJIANIA. 



Tribe Pterostichini. 

 Table of Tasmanian genera. 



1 (S) Mandibles with a seta in scrobe of outer side. (Xomiini, Sloane, 



olim.) 



2 (3) Elytra with eighth interstice not carinate at apex. . . Mectclothorax. 



3 (2) Elytra with eighth interstice carinate near apex. 



4 (5) Intercoxal part of mesosternum narrow and excised at apex; met- 



episterna elongate Amblytelus. 



5 (4) Intercoxal part of mosostsrnum wide and emarginate at apex; met- 



episterna short, quadrate. 



6 (7,1 Antennae with third joint bearing a few fine setules besides usual 



apical setae Ptkroqmus. 



7 (6) Antennae with third joint glabrous (except usual apical setaei .. .. 



Pher-sita. 

 S (1) Mandibles without a seta in scrobe of outer side. (Pterostichini, 



sensii siricto.) 

 9 (24) Antennae with three basal joints glabrous. 



10 (13) Ventral segments 4 — 6 transversely sulcate. (Scutellar striole of 



elytra, if present, at base of second interstice. Apterous. I 



11 (12) Head with frontal sulci obsolete. (Elytra with three punctures on 



third interstice — all beside third stria. I Simodontus. 



12 (11) Head with strongly impressed divergent frontal sulci .. PRosopoaMUS. 



13 (lU) \'entral segments without transverse sulci. 



14 (21) Elytra w^ith scutellar striole at base of first interstice. 



1.") (IS) Apterous. (Elytra with third interstice punctate: met-episterna in 

 Tasmanian species short.) 



16 (17 1 Prothorax depressed across base, basal impressions wide, extending to 



lateral border Rhabdotus. 



17 (16 1 Prothorax with basal impressions narrow, distant from lateral border. 



NoTOSOMDS. 



18 (15) Winged. (Met-episterna elongate.) 



19 (20) Elytra with third interstice 3-punctate (Two anterior punctures beside 



second stria, posterior puncture beside third stria i . . Pskcdoceneus. 



20 (191 Elytra with third interstice impunctate Chlaenioidius. 



21 (14) Elytra without scutellar striole. Winged. 



22 (23) Elytra with third interstice unipunctate near middle, pro-episterna 



laevigate Loxandrus. 



23 (22) Elytra with third interstice impunctate: pro-episterna striolate 



Rhytisternus. 



24 (9) Antennae with four basal joints glabrous. (Length exceeding 26 mm.) 



Catabromus. 



I am now unable to sup]inrt the separation of the aeiicra with a seta in tlie 

 outer scrohe of the mandibles from the great tribe Pterostichini: in the tribe 

 Mig-adopini there is the genn.s Tthi/tidnfjnathus with a mandibular seta, though 

 usually it is wanting in the tribe, and many Broscides of Australia, Tasmania, 

 and New Zealand are without the ordinary mandibular seta of the tribe Bro.;eini. 



Loxantlrus ijaniitimts C'astelnau was deserihed from Tasmania, but I have 

 not seen it. 



