478 Mr. A. M. Lea on 



mouth-parts, forbid its generic association with that species. 

 It would probably have been treated as representing a new 

 genus by the late Mr. WoUaston ; but for the present I 

 prefer to place it in Stereohorus , from all the Australian 

 species of which it differs in its shorter rostrum and very 

 minute punctures of head and prothorax. 



Notiosomus rugosipennis , sp. n. 



Black, somewhat shining ; antennse, tarsi, and tibial 

 hooks of a dark dingy red. 



Head almost impunctate at base; with rather small but 

 clearly defined punctures, continued on to rostrum, but 

 becoming somewhat smaller and denser there ; interocular 

 fovea very small. Rostrum almost parallel-sided, feebly 

 dilated at insertion of antennae, about as long as width of 

 prothorax at base. Prothorax with sides rounded and dilated 

 towards but not to base ; with almost evenly distributed 

 punctures, scarcely larger than those between eyes. Elytra 

 not much wider than widest part of prothorax, parallel- 

 sided to beyond the middle; with rows of deep punctures 

 in narrow striae ; interstices wider than striae, with small 

 punctures and with numerous minute transverse impressions, 

 giving the surface a rugose appearance, especially posteriorly. 



Length 4-5 mm. 



Hah. New South Wales : Sydney (G. E. Bryant and 

 A. M. Lea), lUawarra (H. J. Carter). 



In general appearance close to congener, but with smaller 

 punctures and median impunctate line on prothorax scarcely 

 traceable ; major is a larger species, with much coarser 

 punctures ; australis is unknown to me, but is described as 

 having the under surface with deep and coarse punctures, 

 which the present species certainly has not. On some 

 specimens the interocular fovea appears to be no larger than 

 some of the surrounding punctures. The rostrum is about 

 the same length on both sexes, but is considerably wider on 

 the male than on the female, so that its length is scarcely 

 more than twice its width, on the female the length is 

 about thrice the width. The male also has a shallow de- 

 pression along the two basal segments of abdomen. 



Cossonus nitidirosti'is, sp. n. 



Black, shining ; basal third of elytra (except suture and 

 margins) of a bright castaneous, tibial claws, tarsi, and 

 antennae of a more or less dingy red; parts of under surface 

 obscurely diluted with red. 



