478 NEW SPECIES OP AUSTRALIAN COLEOPTERA, 



A single specimen of this magnificent insect is before me. 

 It differs from E . gigas (the largest species hitherto known) 

 in being much larger, more parallel-sided, and with the pro- 

 thoracic markings longitudinal instead of transverse; the 

 marking on each side is constricted in the middle, and 

 towards the apex becomes dilated, and then subrounded ; 

 towards the base it is strongly bifurcated ; the middle is 

 occupied by a black angular patch which is strongly nar- 

 rowed towards the apex and less strongly to the base ; on 

 each side of the base there is a black angular projection. The 

 ])rothorax also is without the patch of large basal punctures 

 on each side. The humeral markings are not connected as in 

 E. gigas: and the subapical spot on each elytron is smaller 

 and more rounded. The scutellum is also more transverse. 

 The subtriangular extension of the front tibire is probably 

 sexual. In some lights, the antennee and front legs appear to 

 be feebly diluted with red. 



Episcaphula gigas Macl. (Plate xvii., fig. 11). 



A sketch of the markings of this species is given for com- 

 parison with those of E. hercules. 



EXPLANATION OF PLATE XVIL 



Fig. L — Paflmholua mamillatun Lea; hiiul leg. 



Fig. 2. — CoUacerothorax srulpticepn Lea. 



Fig.3. — C. sculpticeps; siile-view of head. 



Fig.4. — O. sculpticeps; ba.se of head, from behind. 



Fig. 5. — Bytus insi(piicornis Lea. 



Fig. 6. — Chlorohapta tibialis Lea. 



Fig. 7. — Hyleccetus fuscipennis Lea. 



Fig. 8. — H. i-igilans Lea; liead and protlioiax. 



Fig. 9. — Ti/fihl idoma inoj)s Lea. 



Fig. 10. — Episcaphula hercules Lea. 



Fig. 11.— .&. (pgas Macl.; markings. 



