83 



posterior tibiae. Mr. Brown informs me that C . aureomacu- 

 latus is common about Cue, in damp localities; whereas 

 C rectipes is rare, and only found on red sandy soil about 

 12 miles from Cue. 



ACHERRES LATUS, n. Sp. 



Close to A. mamillatus, Pasc, but larger and wider. 

 JBlackj with scanty yellowish clothing in depressions. 



liostrum and head as in A. 'mamillatus^ but ros'tral crests 

 ■ more prominent. Frothorax (2*5 x 2'5 mm.) comparatively 

 narrow, subparallel on sides ; strongly convex antero- 

 posteriorly, and from side to side; with a deep median longi- 

 tudinal impression, and irregularly bi-impressed near apex ; 

 set with moderately large granules, about the same size as in 

 A. mamillatus, each with an umbilicate puncture at apex. 

 Elytra (6'5 x 5'5 mm.) obovate, widest across infra-humeral 

 tubercles, thence narrowing rather rapidly to base, and more 

 gradually to apex ; base about as wide as prothorax, gently 

 emarginate, humeri moderately prominent ; disc flattened 

 above, moderately declivous towards sides, and strongly decliv- 

 ous posteriorly ; with rows of moderately large, open, foveiform 

 puctures, the intervening ridges not granulate ; firs-t and 

 second interstices with a single row of low granules, each with 

 a large umbiliform puncture ; fourth with a few similar 

 granules, anterior to middle ; third and fifth each with a row 

 of tuberculiform elevations, on the third, small, hardly 

 elevated at base, merely indicated by the punctures, becoming 

 larger posteriorly, the last three definitely tuberculiform, each 

 with several open punctures, arranged in a cluster, the apical 

 tubercle situated on the edge of the declivity ; fifth with a row 

 of eight or nine, the basal ones small but evident, the apical 

 four larger, spiniform, a small spinule present on declivity, the 

 basal elevations with several punctures, the apical ones with 

 a single puncture only ; an infra-humeral tubercle present, 

 situated on seventh interstice, low, rounded, irregularly punc- 

 tate ; lateral interstices not granulate. Beneath as in A . 

 mam^illatus . Dim.. — 10 x 5*5 mm. 



Hah. — Western Australia: Cue, Lake Austin (H. W. 

 Brown). Type in South Australian Museum. 



I am doubtful of the sex of the type, but think it is 

 probably a male ; four specimens are before me, but except for 

 some difference in size I cannot indicate any sexual distinctions. 

 The species is- close to A. mamillatus, and perhaps should be 

 regarded as a variety only. Compared with specimens of A. 

 mamillatus from Geraldton, the present species differs in its 

 larger size, more deeply channelled prothorax, and broader 



