Genera and Species of Coleoptcru. 23 



the maxillary palpi securilbrin, of tlio labial narrowly triaii<!:iilar ; pro- 

 thorax tiiu'ly punctured, convex, slightly transverse, rounded anteriorly 

 and laterally, and narrowly niar<rined ; scutelluni small, triangular ; 

 el}i;ra coarsely seriatt>-punetate, scarcely broader at the ba.se than tin; 

 prothorax, the sides gradually rounded to the apex ; body beneath with 

 the sterna dull reddish ferruginous, the abdomen glossy black ; pro- 

 stenmm subhorizontal posteriorly, incurved, ending in a short thick 

 process which is only partially received in the shallow coiTesponding 

 notch of the mesosternum ; intercoxal process rather broadly triangular ; 

 legs reddish ferruginous, rather slender ; tibia3 strongly curved, and un- 

 armed ; tarsi narrow, hairy beneath, the basal joint slightly elongate, 

 the last shorter than the preceding united. Length 4 lines. 



Apellatus [Cistelidae]. 



Caput antice elongatum ; ocidis magnis, reniformibus. Antennes breves, 

 ai-ticulo primo vix incrassato, tertio ad septimum subrequalibus, hand 

 nodosis. Tibics breves, curvatse. Prostermim compressum, elevatum. 



The genera of CistelidiB do not appear to be distinguished from 

 each other by any very trenchant characters. This genus is perhaps 

 scarcely an exception, although in colour it differs essentially from 

 ^thyssius* and Tanychilus, genera to which, on account of their 

 long muzzle, this is the most nearly allied : from these, and especially 

 from the latter, it is separated by its shorter antenna3, Avith the 

 basal joint scarcely thickened, the nearly equal length of the third 

 to the seventh inclusive, their subcylindrical form (not nodose at the 

 end), the shorter and curved tibia), the larger and more reniform 

 eyes, and the narrow presternum. I only know the males. 



Apellatus lateralis. (PI. II. fig. 1.) 



A. flavo-testaceus, giaber, subnitidus ; oculis vittaque elytrorum nigris. 



Hah. New South Wales. 



Fulvo-testaceous, smooth, subnitid, a stripe from the shoulder 

 gradually widening behind, and at the apex nearly approaching the 

 suture, and eyes black ; head narrow, prolonged beyond the eyes, and 

 rounded immediately behind them ; antennae about half as long as the 



* Mthyssms, proposed for Atractiis, Lacord. (Macleay, Dejean), which name 

 has been in common use since 1832 for a genus of Hemiptera. The name of 

 another Heteromerous genus ( Trigonofarsus, Hope) having been preoccupied by 

 Guerin for a genus of Curculionid.T, I have now to propose " Sobas," which T 

 have used in a MS. list of the Australian Heteromera that I have in hand. I 

 have also in the same list adopted as a genus the division distinguished by two 

 spurs to the anterior tibiie, which M. Lacordaire has made in Nacerdes, and liave 

 named it " Sessinm." 



