119 



from T. bipartitus considerably in the sculpture of its pronotum 

 but otherwise its structural characters seem identical, — granula- 

 tion and shape of eyes, length and structure of antennae, structure 

 of palpi, &c. Like T. bipartitus it seems to have only four tarsal 

 joints even under a strong power, and it is not easy to feel quite 

 certain which is the missing fifth joint, but I am fairly confident 

 that it is the penultimate which is abnormal, and exists only as a 

 minute nodule at the base of tke apical joint. I have no doubt 

 that the specimen before me either is T. hilar is or is excessively 

 close to it, and that T. hilar is is a Thanasimomorpha, but what- 

 ever it is, it is not a Tillus. 



T. dux, Westw., is a complete enigma. I incline to the opinion 

 that its author was mistaken in calling its claws appendiculate, 

 in which case it might well be a large JVatalis, but if he was not 

 mistaken I can make no suggestion about it except in saying that 

 the description, and especially the size, do not suggest a true 

 Tillus. I am therefore of opinion that there is no true Tillus 

 known in Australia. It certainly seems unlikely that among all 

 the Australian Cleridce before Mr. Westwood there was not a 

 Natalis but that there was a specimen, of the remarkably large 

 size" of a Natalis, subsequently (so far as I can discover) not 

 mentioned by any author, and appertaining to a different genus. 



OPILO. 



To this genus nine Australian species are attributed in Mas- 

 ters' Catalogue ; in Lohde's Cat. they stand at the same number 

 but are not the same insects, 0. (Notoxus) ephippium, Boisd., 

 and mcerens, Westw., having been removed, the former (vide Tr. 

 Roy. Soc, 1891, p. 303) having been shown to be a Trogodendron 

 and the latter having been referred (I think wrongly, — vide 

 infra) by Chevrolat to Scrobiger. Their places are tilled by 

 0. variipes, Chevr. (apparently omitted accidentally by Masters) 

 and 0. floccosus, Schenk., on which a note will be found below. 

 A change of name also occurs, Whitei, Gorh., being substituted 

 for apiccdis, White (nom. prseocc), a synonym that appears to 

 have escaped Mr. Masters' notice. 



Concerning the species referred to Opilo in Lohde's Catalogue 

 I offer the following notes : — 



0. congruus, Newm. A true Opilo ; very variable and common 

 all over Australia. 



eburneocinctus, Gorh. Not known to me. Probably a true 

 Opilo. 



0. ephippiger, White. Identical with Trogodendron (Notoxus) 

 ephippium, Boisd., as pointed out by me (Tr. Roy. Soc, S.A., 

 1891, p. 303). Herr Lohde does not appear to have observed my 

 note. 



