32 ADEPHAGA. [CltlceJiiiiia. 



able for the Ijeauty of the species which belong to it. Two genera belong 

 to our fauna, Chlgeniiis and Callistus ; in the latter the outer lobe of the 

 maxillae is formed of one piece, no trace even of a suture being left as 

 is the case in the genus Amerizus, Chaud., in which also the lobe is 

 formed of one piece. For some reasons the species of CalUstus might be 

 separated off as a distinct tribe ; one character, however, on which 

 Chaudoir lays stress, viz. the pubescence of the palpi, is found in some 

 exotic species of Chhenius. 



I. Tibise finely pubescent with bristles interspersed; oviter 

 maxillary lobe formed of a single piece ; mentum with a 



simple tooth Callisttts, Son. 



II. Tibiffi without pubescence, but furnished with short erect 

 bristles ; outer maxillary lobe rouud, articulated ; mentum 



with a bifid tooth Chl^nius, Bon. 



CAZii;.ISTUS, Eonclli. 



This genus comprises about ten species, which are widely distributed 

 over the Old "World. No species appears to be found in America; there 

 is only one European representative, which is one of the handsomest of 

 our insects. 



C. lunatus, F. Head large, metallic blue or green, strongly punc- 

 tured, antennae dusky with base testaceous ; thorax testaceous red, 

 strongly cordate, very finely and closely punctured ; elytra ovate, very 

 finely striated, testaceous yellow, with a humeral spot, a broad fascia 

 about middle not reaching suture, and a broad fascia near apex reaching 

 suture, black ; the two latter fasciae are connected at margin ; underside 

 bluish black ; legs yellow, apex of femora, base of tibiae, and last four 

 joints of tarsi more or less black or brownish. L. 6 mm. 



Very local, but taken in some numbers where it occurs ; confined to chalky dis- 

 tricts ; found at roots of grass, and occasionally running about in the sunshine ; 

 Folkestone ; Canterbury ; Dover ; Reigate ; Caterham ; Mickleham ; Croydon, &c. 



CKIiSINIUS, Bonelli. 



This genus contains about 400 species, which are widely distributed 

 throughout the world ; they are for the most part brightly metallic- 

 coloured, usually green with a more or less coppery reflection, and as a 

 rule covered with fine silky pubescence ; they are among the mos- 

 beautiful of the Coleoptera ; they exhale a strong and someM'hat ammonia 

 cal odour ; they are found as a rule under stones and rubbish in marsh; 

 places, or on the borders of streams- and rivers, sometimes at the roots o 

 plants. We possess only four species, of Avhich two are exceedingly rare 

 the European list contains between thirty and forty. 



The larva of C. vestitus is figured by Schiodte (iii., PI. xx., Fig. 3). It is compar; 

 tively broad, but linear and slightly fusiform, upper side scantily pubescent with j 

 the corneous parts finely reticulate ; the colour is wliite, witli all the scuta of the upp , 



