i330 CARABIDiE FROM DORRIGO, N.S.W., * 



not wider at base(4'2 mm.j than at apex(43 mm.); sides strongly 

 sinuate on each side posteriorly; basal angles subrectangular, 

 obtuse at summit; posterior marginal puncture near lateral 

 margin about half a millimetre before basal angle. Elytra 

 truncate-oval(12 x 7"i mm.); derm shagreened; interstices 1, 3, 5 

 and 7 carinate; second carina (third interstice) bisetose on 

 posterior half; spaces between carinse depressed and with two 

 rows of small punctures; ninth interstice seriate-punctate, hardly 

 indicated towards apex. Prosternal and mesosternal declivities 

 glabrous. Posterior trochanters {especially in ^) very broad, 

 roundly obliquely narroived from inner side to the obtuse apex. 

 Length 2'2, breadth 7-4 mm. 



Hab. — Dorrigo. 



Six specimens have been examined. This species is so closely 

 allied to C. nitidicollis, that it could easily be mistaken for that 

 species, unless the posterior trochanters are examined. The 

 prothorax hardly differs; though it is a little longer, narrower, 

 and less strongly rounded on the sides, posterior sinuosities of 

 sides longer, posterior marginal seta more distant from base. In 

 both sexes the posterior coxse have the external apical angle 

 more obtuse, and the posterior trochanters are much wider. In 

 C. nitidicollis the external apical angle of the posterior coxa 

 is, in (J, narrow and pointed; in Q, widely and obtusely triangular; 

 and the posterior trochanters are, in ^, long, narrow, obtuse at 

 apex, compressed (lightly and widely concave) towards base; in 

 ^, narrower than in (J, elongate, not compressed. The form of 

 the penis in these two species is very different; in C. nitidicollis 

 it has the apex very wide, produced laterally on each side; on 

 outer side shortly and obtusel}', on inner side strongly and sharply 

 in a dentiform projection In C. speciosa the apex is wide, and 

 shortly produced laterally only on outer side; outer angle pro- 

 minent and dentiform. 



C. nitidicollis and C. speciosa are the only two species of 

 Caslelnaudia with any noticeable sexual ditference in the form 

 of the posterior trochanters. 



