13() THK CARABIDAE OF TASMANIA, 



Ambh/stomus varies so considerably that I do not tliink this a character on which 

 the genus should be founded. The clypeus and labrum cannot be said to be 

 as_\inmetrical in Psilonothus, and Ps. ovalis SI., has naked tarsi in d', but a species 

 described below, ,1. convexus, is evidently congeneric with Ps. orafo, yet has the 

 four anterior tarsi in c?, lightly dilatate and squamulose beneath. 



Table of Tasmanian species. 



1 (4i Met-episterna elongate: elytra striate near suture, puncture of third 



interstice before apical declivity ; eyes near buccal fissure beneath- 

 Winged. 



2 (3 1 Prothora.x arcuate to base, basal angles rounded, not marked. Leilgth, 



3.3-3.5 mm iiiger Blackb. 



3 (21 Prothorax decidedly and obliquely narrowed to base; basal angles ob- 



tuse, but marked. Length, 2.3--2.5 mm. .. .. parvus. Blackb. 



4 (li Met-episterna (excluding epimeral quadrate; elytra without striae 



on disc, puncture of third interstice on apical declivity; eyes distant 

 from buccal fissure beneath. Apterous. 



5 (6) c? with four anterior tarsi squamulose beneath. Length. \-A.h mm. 



couie.xus SI. 



6 (5 1 (S with anterior tarsi naked beneath. Length, 2.5 — 3mm. ovalis Si. 



AilBLYSTOiirs (NoTOPillLCS) xic.F.R Blackburn. 



Hah. — Evandale (Simson No. 3122); Latrobe, Jordan River. Strahan, j\Iount 

 Wellington (Lea). Common in South-eastern Australia. 



A:wBLYSTOMU.s (NoTOPHiLis) PARVUS Blackburn. 



Hah. — Launceston, Evandale. Zeehan (Simsuu. Xo. 2877); Jordan River 

 (Lea). South Australia. 



AlIBLTSTOlirs CONVEXUS, SJl. nov. 



Apterous, oval, convex; prothorax with lateral margin narrow; elytra smooth, 

 a fine puncture at position of third interstice near apical fifth ; met-cpis(erna 

 wide, short, quadrate — including epimera longer than broad; posterior tarsi with 

 first joint as long as three succeeding joints together. <S. — Abdomen at apex 

 bisetose on each side; four anterior tarsi with joints 1 — 4 lightly dil.atate and 

 sr|uamnlose beneath. Olivaceous-black; liasal joint of antennae ..nd tibiae testa- 

 ccniis-lirown. 



Head sniootli; labrum. clypeus and front sliagreened, and sliowing some 

 miiuite punctures under a lens; eyes round, convex, distant from buccal fissure 

 beneath; mentuni edentate. Prothorax smooth, convex, transver.se — cordate (1.1 

 X 1.4 mm.) ; base wide; basal angles obtuse; lateral border narrow, more strongl.v 

 reflexed at basal angles, entire on base. Elytra smooth, convex, oval (2.6 ^ 2 

 mm.) ; eighth stria obsolete; submargina! punctures wantiui;' on niiddle of sides. 

 Length, 4.1—4.4, breadth, 1.75—2 mm. 



Hah. — Brighton (Simson. No. 2858). Also fimnd l)y .Mr. Lea at Liu-irdale 

 and Port Lincoln, S. Australia. 



A distinct species much larger tlian .L {Psihniothu.f) ovalis SI. Compared 

 with Amhliignathns minutux, a species I also refer to Amhli/stomus. r.nd to v, hicli 

 it is allied, the prothorax narrowly bordered at once distinguishes it 



