a few apparently undescribed Insects. 53 



somewhat convex, the punctures of strife regular, moderately 

 deep, very distinct; legs short; prosternum verrucate ; mouth, 

 antennae and legs somewhat rufo-piceous, the whole under surface 

 clothed more thickly than the upper with short pale pile. 



A single specimen of this interesting insect, captured by Mr. 

 Gibbon, is in that gentleman's collection. 



I have named it in honour of our learned Curator, Mr. Janson, 

 than whom no one has studied the Elaterina with more profound 

 science or acuteness. The species is particularly interesting, as 

 subserving the view entertained by the illustrious Kirby of con- 

 necting the Elaterina with certain Cebrionidce, more particularly 

 with the Anelastes Drurii of Kirby, described and figured in the 

 twelfth volume of the Linnaean Transactions. — Linn. Trans, xii. 

 285. 



Stirps CERAMBYCINA, Newman. 



Genus Stenoderus. 

 Sp. 1. Stenoderus quietus, Newman. 



Caput ac prothorax testacea, glaberrima, oculis antennisque ni- 

 gris ; scutello nigro, quoad discum depresso opaco, quoad niar- 

 ginem posticum simicirculariter elevato ; elytris latis testaceis 

 opacis nullo modo signatis, carinis elevatis 4 concoloribus ; pro- 

 sterno procoxisque Icete testaceis, metasterno nigro; mesocoxis 

 testaceis, mesofemoribus sordide testaceis ; tibiis tarsisque om- 

 nibus, metapedibusque omnino nigris ; abdomine chalybeo-nigro, 

 lumine mutato iridescente. (Corp. long. "5 unc, ; elytrorum 

 lat. '15 unc.) 

 Head and prothorax above and below bright testaceous, very 

 glabrous: eyes, antennae and scutellum black; elytra testaceous, 

 opaque, broader than is usual in the genus; each has four sharp 

 well-defined parallel ridges extending throughout its entire length ; 

 the fore and middle coxee are testaceous ; the fore and middle 

 femora testaceous, but more dusky ; all the tibiae and tarsi and 

 the whole of the hind legs are black, devoid of gloss ; the meta- 

 sternum and abdomen are black and shining, and exhibit iridescent 

 colours when moved in the light. 



Hab. Moreton Bay. A single specimen was collected by Mr. 

 Gibbon, together with abundance of allied species, as Pentacosmia 

 atricilla, Stenoderus ostricilla, &c. 



