230 Mr. F.P. Pascoe on some new Australian Longicornia. 
IrHEUM. 
Caput exsertum, antice quadratum, tuberis antenniferis distantibus. Oculi 
parvi, valde emarginati. Antenne breves, ciliate, scapo oblongo-attenu- 
ato, articulis tertio et quarto fere duplo longioribus, czeteris brevibus et 
eequalibus. Prothorax subcylindricus, capitis latitudine. ZElytra angus- 
tissima, elongata, apice emarginata. Pedes breves. Ungues simplices. 
Pro- et meso-sterna depressa. -Abdominis segmentis subsequalibus. 
This is a long narrow form, like Cacostola, but with differently 
formed antenn, widely separated at the base, &c. So far as the 
Australian Longicornia are concerned, it will follow Atimura, a genus 
recently characterized by me in the ‘Trans. Ent. Soc.’ 3rd series, 
vol. i. p. 548, and which has representatives in Borneo, Singapore, 
and Sumatra, but from which the present is distinguished by its 
longer and more attenuated scape, quadrate face, elytra not truncate 
at the apex, and other characters. The two species, particularly the 
last, have a very slight pubescence, with a few long, erect hairs scat- 
tered over the body, antenne, &e. 
Itheum vittigerum. (Pl. XI. fig. 9.) 
I. tenuiter pubescens, fuscum, vitta laterali prothorace elytrisque cinereis. 
Hab. South Australia (Mr. Odewahn). 
Dark brown, rather sparsely covered with a long whitish pile, which 
at the side of the prothorax and elytra is sufficiently condensed as to 
form a narrow ashy stripe, long black setulose hairs also scattered over 
the body, legs, and antennze; head coarsely punctured, especially on 
the vertex; eyes small, black; antennz rather longer than half the 
length of the body; prothorax coarsely and closely punctured ; scu- 
tellum narrow at the base, expanded and rounded posteriorly; elytra 
coarsely punctured, the apex broadly emarginate; body beneath dark 
brown, shining, with a thin greyish pubescence. Length 3-4 lines, 
Itheum lineare. 
I, tenuissime pubescens, fuscum; elytris omnino pallide fuscescentibus, 
apice oblique emarginatis. 
Hab. South Australia (Mr. Angas). 
This species resembles the former in most respects, but is some- 
what narrower, and is nearly glabrous, with the apex of each elytron 
more obliquely emarginate, or, in other words, the external angle is 
more produced. The specimen described is from Port Lincoln. I have 
also received it from Mr. Waterhouse, taken near Adelaide. 
OmMoPpHa@NA. 
Caput exsertum, fronte brevi, declivi, tuberis antenniferis nullis. Ocwli 
majusculi, fere divisi. Antenne decemarticulate, incrassate, breves, 
