^78 MANDIBULATA. COLEOPTERA. 



with two black streaks on the disc : elytra rather depressed, punctate-striate, 

 the strise disposed in pairs, and all the punctures usually black : the apex 

 produced externally into an acute spine, and internally into an obtuse, very 

 slightly prominent one : legs yellow, with the apex of \he femora, and of the 

 tibiae, and the claws black: tarsi entirely ^\tc\iy-fuscous : posterior tibiae 

 slightly flexuous. 



In the collection at the British Museum are a pair of insects 

 bearing the above name, which were found near Windsor, but as 

 many years have elapsed since I saw them, I will not be positive 

 that their nomenclature is correct, as in a recent illustration of the 

 genus, the specimens in question have evidently been confounded 

 with the preceding species, large and dark varieties of which have 

 been described and figured as distinct. 



Genus CCCLXXXVIII. — Orsodachna, Latreille. 



Antennw short, simple, inserted before the eyes, with all the joints obconic, the 

 terminal ones distinctly and gradually thickened. Pal-pi elongate : maxillary 

 with the terminal joint incrassate, obliquely truncate : labial with the terminal 

 joint subconic: mandibles sUghtly emarginate at the apex: head exserted, 

 not inserted into the thorax by a distinct neck : eyes globose : thorax narrowed 

 behind : body oblong : legs rather long, and simple: tarsi short. 



From the preceding insects of this family the present genus differs 

 by having the antennae short, with the terminal articulations rather 

 incrassated and transverse; the palpi elongate, with the apical 

 joint incrassate ; the head sessile, &c., by many of which characters 

 it diifers from Crioceris. 



Sp. 1. chlorotica. Antennis, capite thoraceque pallido-riifis, nitidis, elytris pedi~ 

 busque testaceis aut rufescenti-pallido-Jlavis; thorace glabra, punctis im- 

 pressis, distant/bus. (Long. corp. 2^ — 4 lin.) 



Or. chlorotica. Latreille.— Steph. Catal 209. A^o. 2119. 



Above glabrous, irregularly punctate, beneath with a sUken pubescence : antennce, 



head, and thorax pale rufous and shining, the latter with distant punctures ; 



elytra and legs testaceous, or pale-reddish-yellow. 

 The breast, abdomen and vertex are sometimes more or less fuscous or black : — 



the margins of the elytra are occasionally deep pitchy-black, having the disc 



pale. 



Rare : it has been taken in the neighbourhood of Matlock, Derby- 

 shire, plentifully, but in other places it does not appear to occur, 

 except sparingly. " Epping."" — J/r. Douhlsday. 



