LA.MPEOSOMA.— CHEYSODINA. 105 



truncate, sides straight, upper surface closely and irregularly punctured and covered rather thickly with 

 long whitish hairs, the lateral margin narrowly cupreous, which colour also extends slightly along the 

 anterior angles, rest of the surface very dark violaceous hlue ; elytra of the same colour and with the same 

 pubescence as the thorax, the punctures towards the sutures arranged in regular rows, the interstices and 

 the rest of the disk closely covered with smaller punctures ; entire underside and the legs coloured like the 

 head, granulate and punctured, of a rather opaque appearance ; presternum subquadrate, rugose- 

 punctate. 



Hah. Mexico, Almolonga (Edge). 



Of this highly interesting species only a single specimen was obtained by 

 Mr. Hoge. It is the only instance known of a true Lamprosoma having its upper 

 surface covered with hairs, and is, no doubt, a very rare insect. 



Pam. ETJMOLPID-E. 



This great family is well represented in Central America, but, as it seems, more in 

 regard to the number of individuals than of species, not more than about seventy of the 

 latter having, up to the present time, been described. It will, however, be found that 

 many species are common to both South and Central America, a great many hitherto 

 unknown, or at least undescribed, having been lately collected by Mr. Champion in 

 Guatemala, a country of which our knowledge of the number of species belonging to it 

 was previously but scanty, Mexico having furnished us with most of the material. A 

 perfect monograph of the Eumolpidse is as yet wanting ; but both Mr. Baly and the 

 late M. Chapuis have greatly added to our knowledge of the family, the latter's 

 classification (the only one) being of most valuable assistance in clearing up, to a great 

 extent, the chaos which was the rule with most collections in regard to the present family. 



CHEYSODINA. 



Chrysodina, Baly, Journ. Ent. ii. p. 221 (1864) . 

 Spintherophyta, Dej. Cat. 3rd ed. p. 434. 



This genus is principally characterized by its short ovate form and the shape of its 

 antenna?, which have the terminal joints more or less dilated and robust, which is, however, 

 also the case in the allied genus Noda— the latter being a more elongate form, with the 

 scutellum of a different shape, an uncertain character rendering the assignment of some 

 species to their respective genera sometimes very difficult and doubtful. Upon the latter 

 character M. Chapuis laid considerable stress. I believe, however, that the terminal joints 

 of the antenna?, which in the present genus are short and almost transverse, while they are 

 more elongate and, although thickened, yet longer in Noda, will be of equally valuable 

 assistance in separating the two genera. The only Central-American species of Chrysodina 



biol. cent.-amek., Coleopt., Vol. VI. Pt. 1, August 1881. p 



