Mr. A. Murray on Cokoptera from Old Calabar. 117 



sum, quadratum, integrum. Mandibular et maxillae mcdiocres. 

 Palpi tcnues, cum articulis ultimia cylindrico-ovalibus. Men- 

 tum profunde excavatum et cmarginatum, emarginatione sine 

 dente medio, scd leviter sinuato. Ligula membranacea, sat 

 grandis, cum paraglossis annexis, projicientibus ut cornubus 

 leviter clavatis. Antennae breves, capitc et thorace bre- 

 viorcs, articulis longitudine fere aequalibus, secuudo execpto 

 (sed hand multo) brcviore ; primis tribus laevibus, caeteris pu- 

 bescentibus et parum dilatatis. Prothorax convexus, postice 

 latior. Elytra thorace baud latiora, ad ejus basin conniventes, 

 striata, sed sine stria suturali accessoria. Pedes mediocres ; 

 tibiae anticae dilatatae et intus fortiter cmarginatae; tarsi tc- 

 nues, triangulares, sctis subtus utrinque instructi. 



1. A. iridescens, mihi. 



Niger, iridescens, nitidissimus ; thorace fovea basali longitudi- 

 nali laevissima utrinque instructo ; elytris punctato-striatis ; 

 antennis, palpis pedibusque ferrugineis. 



Long. 4^ lin., lat. 2 lin. 



Black, very polished and shining, and beautifully iridescent 

 when looked at from before backwards with its head to the light ; 

 the iridescence rich, and with a proportion of green, yellow, and 

 coppery red, besides blue, in it. The form is that of an Amara. 

 Head impunctate; labrum, antennae, mandibles, and parts of 

 the mouth ferruginous. Thorax subquadrate, narrowest in front, 

 with the anterior angles bent down ; posterior angles translu- 

 cent, slightly acute, with the points rounded ; sides edged ; an 

 elongate triangular space within the posterior angles flattish, the 

 remainder of the surface convex; no dorsal line; a short slender 

 basal fovea or line containing a single row of four or five mi- 

 nute punctures on each side of the space opposite the scutellum. 

 Scutellum ferruginous, smooth. Elytra truncate at the base, 

 oval and emarginate towards the apex, pretty deeply punctate- 

 striate, the intervals impunctate, convex; the striae converge 

 towards the apex and become deeper, and the interstices more 

 convex : as already said, there is no accessory sutural stria ; 

 there arc a few deep punctures on the exterior interstice. Under 

 side more or less piceous and iridescent, impunctate. Legs 

 testaceo-f erru ginous . 



I have only received one specimen of this new species. At 

 first sight, one would take it for an Amara ; but I am not aware 

 of any Amara having been hitherto found further south in Africa 

 than the Mediterranean district : besides, it is iridescent, which 

 is also opposed to its being placed among the Amara-, and on 

 further examination, we find other differences. It has no tooth 



