1266 COLEOPTERA 



more evidently convex across the middle, and slightly longer. 

 Scu-tellum grey. Elytra with the minute median elevation situated 

 further back. 



Length, If lines ; breadth, f line. 



Tairua. One example, no doubt a male. 



2232. A. deterius, n.s. Fusco-piceous or slightly variegate ; 

 legs red, femora and tibias medially nigrescent ; antennae fuscous, 

 the joints darker at the extremity, the two basal joints reddish ; 

 pubescence greyish, greyish-yellow, and infuscate, not forming well- 

 defined spots, but the top of the hind declivity and a curvate mark 

 behind the middle of the elytra rather darker in colour, owing, 

 seemingly, to the colour of the derm as well as the scanty dark 

 clothing. 



Although A. hetcera is undoubtedly the species most nearly 

 resembling this one, they cannot be associated together in the same 

 genus because of certain structural differences. 



The eyes are smaller, more evidently free from the thorax, rotun- 

 date or broadly oviform, without any perceptible emargination, and 

 are situated laterally, so that the antennal fossae are exactly in front 

 of them. The antenna are scarcely as long as the body, formed as 

 in that species. Thorax a little shorter and broader, its surface dis- 

 tinctly and closely punctate ; the carina closer to the base, widely 

 sinuated towards the sides, its outer angle more acute, rectangular 

 in fact, and extending nearly half-way along the side. Scutellwu 

 minute. Elytra oblong, a little bicurvate and marginate at the base, 

 so that the thorax can be almost exactly fitted to the elytra, when 

 the thoracic carina and elytral margin would touch ; they are dis- 

 tinctly punctate-striate, bear two moderately large basal elevations, 

 are transversely depressed before the middle, and though the part 

 behind the depression seems raised there are no obvious inequalities 

 of surface there. Tarsi rather thick and long. 



Length, If lines; breadth, nearly f line. 



Helensville, Kaipara Harbour. One individual. 



2233. A. impar, n.s. Variegate, obscure - red and piceous ; 

 antennas wholly fusco- testaceous or slightly rufescent ; legs some- 

 what testaceous, femora, tibiaa, and tarsi spotted with fuscous ; 

 clothing fulvescent, griseous, and cinereous, the dark spots observable 

 on the elytra are caused more by the ground-colour than by the 

 pubescence. 



Eather smaller than A. phymatodes, and, I think, congeneric : 

 the eyes, however, are smaller, though of the same shape ; the head 

 is destitute of distinct tubercles ; antenna only a little longer than 

 the body, the two basal joints with yellowish pubescence, the third 

 evidently longer than those which follow, ninth longer than the 

 terminal two taken together ; thorax like that of A. phymatodes, 

 but rather more uneven ; elytra not very regularly punctate-striate, 

 basal callosities well developed, with two rather smaller ones behind 

 the middle, the third and fifth interstices terminate in small eleva- 

 tions. 



