20 



able to furnish further particulars. The species is a very vari- 

 able one in respect of the coloring of the elytra and hind body, 

 which vary from almost uniform reddish testaceous through forms 

 in which the hind body is inf uscate and the apical portion of the 

 elytra infuscate or black, to a form in which the elytra and hind 

 body are entirely black. The female is a very remarkable 

 insect, having the elytra produced into a kind of lobe at their 

 sutural angle, and from the apex of the lobe an aggregate of 4 or 

 5 spiniform setse (very closely packed together) project hind- 

 ward. The apical segment of the hind body is unfortunately a 

 good deal withdrawn into the preceding segment in my female 

 specimen, but I think it is trilobed dorsally, the middle lobe long, 

 narrow, and acute, the lateral lobes vertical. The front tarsi of 

 the female have their basal three joints moderately wide, the 

 fourth very small, while in the male the basal four joints are all 

 rather strongly dilated. I should add that I feel some uncer- 

 tainty as to the structure of the seventh ventral segment in the 

 male. In all niy specimens a process of considerable size projects 

 beyond the seventh segment, the suture between which and the 

 seventh segment is not always easy to see, but the true apex of 

 the seventh segment seems to be quadrifid, the median two teeth 

 small and widely separated, the lateral ones larger. The seventh 

 ventral segment is deeply emarginate in the male, widely rounded 

 in the female. I think this species is a true Tachinus. 



[STAPHYLINIDES.] 



XANTHOLINUS. 



X. Olliji, Lea. This insect does not appear to me to differ 

 from X. ^9/ice?itcoj9<er?*s, Fvl , a species to which Mr. Lea does not 

 refer in his description. It is at any rate extremely close to it, 

 bind if distinct the difference should be specified. Mr. Lea sent 

 me an example some time ago of his Olliffi, and it agrees per- 

 fectly with the description of 2^^^(^nicopferus, which I had not 

 previously been able to identify confidently with any Australian 

 specimen, although M. Fauvel reports it as widely distributed in 



Australia. 



[P^DERIDES.] 



LATHROBIUM. 



L. australiciwi, Solsky. This insect should, I think, be 

 referred to the genus Dicax. 



[OXYTELIDES.] 



CEOPHROXISTUS (gen. nov. Oxytelidarum). 

 Caput magnum ; palpi maxillares sat breves, articulo ultimo 

 acuminato ; oculi parvi, in capitis parte deciivi laterali siti ; 

 antennae geniculatie, ll-articulatse; prothorax (speciei 



