BY W. filACLEAY, JUN., ESQ. 69 



elytris basi truncatis apice rotundatis lateribus parallelis 

 basi marginibusque denso punctulatis puucfcis duobus 

 versus apicem utrinque impressis. 



Long. Hi lin., lafc. 3^ lin. 



Hab. Murrumbidgce. 



Tliis species is flatter even than the last, which and the want of 

 striae on the elytra are almost the only distinguishing characters. 

 The head is much the same as in Geryon ; the thorax, which is 

 broader than the head, is almost truncate anteriorly and is 

 obliquely rounded towards the base, which is slightly emar- 

 ginated and reflexed ; the dorsal line is distinct. The elytra are 

 twice the length of the abdomen, truncated at the base, rounded 

 at the apex, and with parallel sides ; there are two punctures 

 near the apex, as in the other species, and a row of minute 

 closely placed punctures extends along the basal margin and 

 lateral groove of each elytron. The legs are as in the last 

 species, excepting the tooth on the outside of the intermediate 

 tibiae, wliich is certainly stronger and less acute than in Geryon, 

 and the upper spine on the inside of the fore tibiae, which 

 is thickened and obliquely truncate ; this last peculiarity is 

 traceable in the other two species. 



Genus Gnathoxys, Westw. (Arc. Ent. 1, p. 89.) 



Caput pronoto multo augustius, pone oculos sensim paullo 



latius, ante oculos parum attenuatum. 

 Labrmn porrectum augustum, angulis anticis rotundatis, in 



medio plus minusve emarginatum. 

 Mandihulce capite paullo breviores subcurvatae marginc interno 



acuto, edentate, apiceque acuto. 

 Maxlllce elongatae lobo apicali acuto curvato, intus setoso, 



palpi maxillai^es breves, articulo ultimo prcecedenti parum 



crassiori. 

 Mentum dentc medio nullo armatum, palpi labialcs maxilla- 



ribus longitudine tequales, ax'ticulo ultimo vix pra^cedenti 



crassiori. 



