286 APPENDIX. 



also is fuscous black. Antennae robust, filiform, the apical joints 

 having a distinct tendency to incrassation ; in colour flavous, the 

 seventh and eighth joints being flavo-fuscous. Legs robust, flavo- 

 fuscous, the tibia? being transversely barred with fuscous. 



This beautiful species is at once distinguished from its congeners 

 by the remarkably deep sculpturing of the thorax and the elytra, by 

 its peculiar coloration and general appearance, which (as suggested 

 by my friend Mr. Wollaston) closely resembles the species of the 

 genus Clonus, especially perhaps C. pidchellus, and by the remark- 

 able pale flavous colouring of the scutellum. 



Rio Janeiro. 



Page 149.— Genus 24. L0X0PR0S0PUS. 



For (Thoeax) " lateribus marginatis, et in angulum productis " read 

 " lateribus marginatis et subsinuatis." 



Page 150. 



For (Thorax) " the sides are broadly marginate, the margination 

 being generally produced into an angle," read " the margination being 

 generally subsinuate . ' ' 



Page 157. — Peribleptus laevigatas. 



A single specimen of this species has been taken by Mr. Fry near 

 Rio Janeiro, the colour of the body of which is, with the exception 

 of the base of the head, entirely black, thus proving, as I had anti- 

 cipated, that the specimen captured by Mr. Gray at Petropolis, and 

 described at page 157, was in a state of immaturity. 



Another example is in Mr. Fry's cabinet, captured by him on the 

 same visit to Rio, which must be considered, I believe, to be a 

 variety of this species : it is in size somewhat smaller, being in length 

 If line, and in breadth f of a fine ; in colour it is rufo-flavous, the 

 apex of the elytra being suffused with fuscous. 



Yar. A. Hufo-flavus, elytrorum apice fusco suffuso. 



Page 176. — Atyphus carbonarius. 



I am enabled to ascertain the sexual characters of the genus Atyphus 

 by an examination of a fine series of this insect brought home by 

 Mr. Fry. The examples from which I drew up my description were 

 all of them females ; the males are smaller in size, being in length 

 2 V lines and in breadth hardly more than 1 lino : the head in the 



