484 Mr. F. P. Pascoe on some new or little-hnown 



sterni receptum. Metasternum breve. Processus interfemoralis antice 

 rotundatum. Corpus naviciilare, supra depressum. 



The outline of this insect, resembling a broad species of Elater, 

 and its flattened form, will readily distinguish it from all other 

 genera of the subfamily to which it belongs. 



Cymheha dissimilis. (PI. XIX. fig. 8.) 

 C. tenea, nitida ; prothorace basi bifoveolato -, elytris striato-punctatis, in- 



terstitiis punctulatis. 

 Hab. Australia. 



Dark brassy brown, shining ; head finely punctured, two foveas be- 

 tween the eyes ; clypeus separated from the front by an arched line ; 

 prothorax finely punctured, an indistinct median impressed line with a 

 fovea on each side at the base ; elytra striate-punctate, the punctures 

 small and rather distant, the intervals between the striae minutely 

 punctured, the sides, abruptly declivous, shade off" at the shoulder and 

 apex ; body beneath and legs brassy ; tarsi beneath and last two or three 

 joints of the antennae covered with a ferruginous pile. Length 6 lines. 



Altmon- [Megacanthinse]. 

 Capiit retractum ; clypeus indistinctus. OcuU hand approximati. Palpi 

 maxillares securiformes ; labiates art. ult. brevi, cylindrico. Maxilles 

 lobo intemo mutico. Labium antice rotundatum. Mentum trapezoi- 

 dale. Antenncs tenuatae, art. tertio caeteris longiore, 4, 5, 6 obconicis, 

 7-11 crassioribus et cylindricis. Prothorax transversus, antice angustior, 

 lateribus rotundatus, apice emarginatus, basi subbisinuatus. Mytra 

 latissima, convexa, arcuata, lateribus subparallela, flexuosa. Pedes 

 mediocres ; femora antica subtus dente valido iustructa ; tibice lineares, 

 inermes ; tarsi art. primo subelongato. Antepectus brevissimum, pro- 

 sterno producto. Mesostermim cavitate A-forme. Metasternum incur- 

 vatum. 



Allied to Oploclieirus, Lac. ; but, besides other characters, such as 

 the unarmed internal maxiUary lobe, &c., it is radically distin- 

 guished by the arching of the elytra, which may be traced along 

 their margins and epipleurae, and to which the concavity of the 

 metasternum corresponds. 



Alymon prolatus. 

 A. cupreo-fiiscus, nitidus ; prothorace subtiliter, elytris striato-punctatis, 



his interstitiis vage punctatis. 

 Hab. Natal. 



Dark copper-brown, shining ; head and prothorax finely punctured, 

 and having a sparse greyish pubescence, apparently very deciduous ; 

 scutellum triangular; elytra rounded at the shoulders, their breadth 



