20 



This species seems lo hover between tlje first and second 

 sections of the genus, tlie tliird joint of tlie intermediate tarsi of 

 the inale being nearly devoid of papillje beneath, but not quite. 

 If it be regarded as a member of t)ie first section, the elytra 

 bearing a pattern together- with tlie fine close puncturation of the 

 same, the number of protlioracic sette and the normally-shaped 

 sutural apex of the elytra will distinguish it from others of the 

 section except P. monticola, Blackb., which inter alia has a less 

 transverse pi-othorax, the hind angles of which are less rounded oh'. 

 As a member of the second section this, species would be dis- 

 tinguished by the same characters (disregarding tlie form of the 

 sutural apex) from all others of the section except P. pubemhis, 

 Chaud., v/hich is not really described by its author, but is only 

 compared with ausiralis, Dej. (and in one respect with Eucalypti, 

 Germ.) ; but that species seems to have the prothorax narrower, 

 and with hind angles less rounded off', and the elytral vitt.e of 

 very different shape. 



In the present insect the protliorax scarcely difi'ei's from that 

 of /'. laticoUis, Blackb., except in being more deeply emarginate 

 in front. The discal vittie of its elytra are so wide in front that 

 they occupy the whole base except a little slight infuscation 

 round the scutellum, and extend backwards gently narrowing to 

 near the apex of the elytra, where they do not meet. The lateral 

 pale margin of the elytra is exceptionally wide. 



Victoria Desert. 



TIUCJTOCAKENUM (geu. nOV.). 



Eutomm valde affinis ; corpus passim setis longissimis gracilibus 

 vestitum ; caput supra oculum puncturis magnis 4 utrinque 

 instructum ; humeri nulli ; elytra puncturis magnis in 

 seriebus sinis (prteter seriem marginalem) instructa ; pi;o- 

 sternum antice irregulariter, et femora antica subtus biser- 

 iatim confertim, crasse punctulata. 



Apart from the characters mentioned above, I do not find any 

 characters to distinguish this genus from Eutoma, but the differ- 

 ences specihed appear to me so numerous and strongly marked, 

 that it would be misleading to refer to Eutoma the insect 

 on which I found this new genus. The four large punctures 

 above each eye (which ai-e placed longitudinally, and are separated 

 from the eye by a very deep sulcus), the close series of large 

 punctures arranged along both margins of the under surface of 

 the front femora, and the strongly punctulate prosternum as well 

 as the double row of large punctures running down each elytron 

 (in addition to a very close row of large punctures in tlie lateral 

 sulcus of both prothoiax and elytra) will at once separate this 

 genus from all scaritid genera heretofore charactei'ised. On the 



