1G9 



has the clypeus entirely dark; the pygidium (fig. 157) widely 

 "black at base and apex, leaving a transverse pale portion with- 

 out spots, and its apex is non-carinate. The under-surface 

 and legs are dark-red and immaculate. 



A female (21 mm.) from Stannery Hills, New South 

 Wales, (5 °) in Mr. French's collection has the head, prothorax, 

 pygidium, under-surface, and legs much as in the preceding 

 specimen, but the scutellum is not entirely black, and the 

 elytra are paler on the apical third than on the basal two- 

 thirds. 



ABLACOPUS T.ENIATUS, Schoch. 



PI. x., figs. 72 to 75; pi. xiii., figs. 163, 164. 



The typical form of this species is sufficiently distinct 

 from the typical form of trapezifer. But both species vary 

 considerably in size and markings, and it is not always easy 

 to separate them. But as a rule the males may be distin- 

 guished by the middle femora, and the females by the 

 pygidium. 



On the male of trapezifer the middle femora each have 

 two fringes of long hairs on the under-surface, the space 

 between the fringes being quite glabrous, sometimes but one 

 fringe is distinct, the second being represented by a few short 

 setae only, but the space between is always glabrous. On 

 tainiatus, on the contrary, the interspace is very densely 

 clothed, so that the whole of the under-surface of the femur 

 appears like an elongated pad. 



On the female of trapezifer the lower portion of the 

 pygidium has a distinct median carina, of which there is 

 no trace on the female of tceniatus. 



The specimen doubtfully figured by Janson (Cist. Ent., 

 ii.) as Diaphonia notabilis almost certainly belongs to tainiata. 

 I have seen three females agreeing perfectly with the figure. 

 One of these has the two apical segments of abdomen partly 

 yellow (although not yellow margined with black), but the 

 others have those segments entirely black. 



The prothorax on the type of tceniatus (but not of notabi- 

 lis) had a stripe on each side pale, with the black blotch con- 

 nected with base and apex. Three such specimens (all males) 

 are before me, on another male there are three small pale 

 spots along the middle (fig. 73), but the blotch is connected 

 also with both base and apex. On all the females ( 31 ) the 

 olotch is disconnected with the margins and has a pale stripe 

 or elongated spot down the middle (as figured by Janson). 



(30) It is the only specimen of the genus that I have seen from 

 -that State. 



(31) Except the specimen from the late Mr. Elgner. 



