177 



but is much smaller and otherwise different to that of 

 tuberculata. When the head is extracted from the prothorax 

 it may be seen that the latter has a large excavation or fovea, 

 partially invisible from above, for the reception of each 

 antenna. At first glance the elytra appear to have two large, 

 round, deep foveae, but this is due to the crossing of the 

 fascicles over the subbasal excavation, and to the sinuation 

 of the epaulettes at the sides of this, where also there are 

 membranes with stiff bristles, these somewhat shorter than 

 the fascicles; the excavation is without lateral openings, but 

 there is a shallow depression (representing them) on each 

 side, to which the striae are directed. 



Chlamydopsis striatipennis, n. sp. 

 PI. xxv., fig. 15. 



Black; elevated front margins of prothorax, antennae 

 (club infuscated), and legs reddish-castaneous. 



Head immersed in prothorax when at rest ; face with 

 shallow reticulate punctures. Antennae not very long; scape 

 curved at base, thickened to apex, with punctures as on face ; 

 funicle short, apparently six- jointed; club moderately long 

 and subcylindrical. Prothora\x strongly transverse, front 

 margin narrowly elevated behind head, then more strongly 

 elevated and curved to margins, narrowest at base ; with 

 dense reticulate punctures, in places becoming substriate. 

 Elytra about as wide as long, closely but sharply striated ; 

 base much and suddenly wider than prothorax; epaulettes 

 strongly raised, and crowned with stiff reddish bristles; 

 subbasal impression not very large (in comparison with other 

 species), its deepest part highly polished, not indicated on the 

 sides; tips with numerous short setae. Prosternum, mesos- 

 ternum, and parts of metasternum and abdomen with dense 

 subreticulate punctures, elsewhere with small ones. Pygidium 

 and propygidium with dense reticulate punctures, and 

 numerous short setae. Legs long; femora thin, grooved for 

 partial reception of tibiae ; front tibiae rather thin at base, 

 then strongly thickened, a small tooth marking the termina- 

 tion of the tarsal groove ; middle tibiae slightly longer, rather 

 less stout, and with the dentiform projection almost 

 obsolete; hind tibiae longer, still less stout (but with the 

 apical half still fairly thick), and without a dentiform projec- 

 tion. Length, 2'75 mm. 



Hab. — Victoria.: Lome, from a nest of a small black 

 Iridomyrmex in October (F. E. Wilson). Type (unique), 

 I. 10676. 



A strongly striated species, readily distinguished from 

 all others of the genus by (in combination) great width across 



