200 TWO NEW AUSTRALIAN LUCANDIiE, 



I scarcely know to what group of the Lucanidge to refer this 

 genus. In its narrow head, general form, and metallic colouring, 

 the insect shows an' affinity to the Lamprimidce, but on the other 

 hand, its distant fore legs, broad prosternum and curiously formed 

 mesosternum seem to indicate an approach to the true Lucanidoe. 

 I regret that having only one specimen, I have been unable to 

 examine the maxilla; and labium in a satisfiictory way. 



HoMOLAMPRIMA CRENULATA. n. Sp. 



Mcde. Of a rather depressed ovate form. The upper surface 

 dull bronzy black, with metallic reflections on the margin of the 

 thorax and elytra, and on the whole of the scutellum. The under 

 surface, legs, mandibles and antennae are of a brilliant metallic 

 bluish-green. The head is square, rugose, broadly and triangularly 

 but not deeply depr'essed, and coarsely and profoundly punctate. 

 The mandibles are shorter than the head, punctured above, smooth on 

 the sideS: and curving a little upwards and inwards towards the apex 

 where tte two terminal teeth of each mandible come in contact. The 

 thorax is broader than long, narrowed a little at the apex with the 

 anterior angles a little prominent, rounded on the sides which are 

 crenulated, slightly bisinuate at the base, very finely and thinly punc- 

 tate, and with a slight depression near the base of the median line. 

 Scutellum smooth, triangular, the sides rounded. Elytra about the 

 width of the thorax, and about twice its length with a few obsolete 

 strife near the suture, and with the whole surface rather thinly 

 sprinkled with minute variolose-looking punctui'es. The under 

 surface is mostly smooth ; the chin is rugosely punctured ; the pro- 

 and meso-sternal processes ai-e smooth ; the fore tibise are ai-med 

 externally with four strong teeth, three near the apex, and one 

 above the middle, the other tibise have each a small tooth on the 

 outside near the middle. 



Length, 9 lines. 



Hah. — Clarence River. 



Female. I have in my collection one specimen of a female, 

 which is undoubtedly of this genus, and which I think is almost 



