202 CARAB1D.E FROM THE UPPER WILLIAMS RIVER, N.S.W., 



margin; under surface piceous; trochanters, tarsi, and mouth 

 parts reddish-piceous. 



Head a httle nairowed behind eyes (-l:-25 mm. across eyes); 

 front widely biimpressed. Prothorax broader than long (4-5 x 5-3 

 mm.), widest before middle, wider at apex (4-15 mm.) than base 

 (."3 -6 mm.): sides lightly rounded at anterior marginal puncture, 

 obliquely narrowed to base (subsinuate before base from some 

 points of view); apex lightly emarginate; anterior angles obtuse, 

 hardly advanced; base lightly emarginate above peduncle; lateral 

 border strongly reHexed on basal half, particularly towards basal 

 angles; lateral basal impressions wide. Elytra mucli wider than 

 ]jrothorax (11 x 7 mm.); sides strongly rounded to peduncle; stri;r 

 a little crenulate; striole at base of first interstice short; inter- 

 stices 1-8 equal, ninth depressed, third 3- or 4-punctate, fifth and 

 seventh 2-punctate on basal half. Prosternuin, mesosternum, and 

 metasternmn glabrous. Ambulatorial sette of ventral segments 

 present; apex of abdomen iniisetose on each side, a slight notch 

 in middle. Length 20 '5, breadth 7 mm. 



llab. — Mount Tvoyal Range, N.S.W. One specimen ($) was 

 foinid by me on the steep escarpment at the source of the AUyn 

 river, 400 feet from the sunnnit, under a log on the stony bank 

 of a rivulet, in a very damp situation. 



This species is an isolated one in the Australian fauna, and is 

 not truly congeneric with the other Australian species which 

 have been referred to the genus Trlchostfrmis. It has not the 

 interstices of the elytra costate, as have all our other species. It 

 is more allied to New Zealand species, for which the late 

 Tschitscherine proposed (though without diagnosing it) a new 

 genus, JVesopterosHchiis, with Trichostemus gtie'rini Chaud., for 

 the type.* I do not ls:no\\ T. </nerini in nature, noi- have 1 

 siifiicient knowledge of the species of New Zealand to say defin- 

 itely that T. ausfralicas is actually congeneric with them; but 1 

 cannot think it will i-emain in the same genus witli the costate 

 Australian species of Trichoi^terutts, when the classification of 

 the Fterodichiui is revised. 



* CV. Hor. Sue. Eiit, Ross., xxxv., lltO'i, i...v21. nutt. 



