207 



iDasal segment, and are punctured much in the same way as the 

 ^adjacent surface. The presternum is evenly convex longitudi- 

 nally, and its front margin is not in any noticeable manner angu- 

 larly prominent in the middle. The underside is finely punctu- 

 late — more closely at the sides than in the middle. The few 

 specimens that I have seen of this insect are unfortunately much 

 abraded, but I think there is no doubt that in a fresh specimen 

 the pubescence of the upper surface is tolerably close and even, 

 and of a silvery white colour. 



Apart from the great difference in the structure of the pros- 

 ternum, this species has the superficial aspect of a liliputian 

 R. dehilis. 



Port Lincoln. 



R. occidenfalis, sp. nov. Ovalis ; sat convexus ; pubescens ; vix 

 perspicue punctulatus ; nitidus ; lurido-testaceus ; elytrorum 

 epipleuris pallide flavis, macula basali communi triangulari, 

 sutura, linea communi arcuata post medium, et maculis aliis 

 parvis nonnullis, piceis ; prothorace quam longiori vix duplo 

 latiori, antice minus angustato, angulis anticis rotundatis, 

 posticis subrectis. Long., *1. ; lat., ^1, (vix). 

 The abdominal plates and prosternum seem scarcely different 

 from the corresponding parts in R. nitidus. Under a powerful 

 Coddington lens there is little defined sculpture visible on the 

 undersurface, except on the ventral segments, where (especially 

 in the middle) some sparse rather fine puncturation can be dis- 

 cerned. 



In the unique example that I possess of this insect the pro- 

 thorax is a little stained with piceous in the middle ; on the elytra 

 the fuscous stains consist of a rather broad sutural line, which is 

 crossed near the apex by a short curved line (its convexity hind- 

 ward) and dilates close to the front into a large triangular patch 

 including the scutellum, but not quite including the humeral calli, 

 and also some small slightly defined spots on the disc. 

 Western Australia ; taken by E. Meyrick, Esq. 



R. speratus, sp. nov. Breviter ovalis ; pubescens ; crebre minus 



subtiliter punctulatus ; fusco - testaceus ; elytris anguste 



piceo-marginatis, postice signatura communi curvata picea 



instructis— hac cum sutura picescente ancoram simulante. 



^ong., * 1. (vix); lat., I 1 (vix). 



The puncturation is about as fine as in >S'. Jlavifrons, but is 



somewhat closer, and there is no appearance whatever of asperity. 



The dark fuscous markings of the elytra are all narrow, and 



make up a very accurate representation of an anchor. There is 



an additional (but very faintly defined) fuscous line joining the 



extremities of the flukes of the anchor; if this line be taken 



