84 Proceedings of the 



the eighth joint shorter than the seventh and ninth. Prothorax 

 of variable form. Elytra oblong or oval, arched above. Legs 

 long and slender, the first four joints (and more especially the 

 first two) of the anterior tarsi, and sometimes the first joint of 

 the intermediate tarsi, dilated in the males and provided with 

 brushes of hair below. Mesosternum sometimes keeled. Body 

 oblong or oval, clothed with a very fine silky pubescence*. 



The first division which I shall adopt is the same as Erichson's, 

 and I preserve Latreille's name Choleva for it as a subgenus ; 

 but I shall drop the dilatation of the anterior tarsi and the first 

 joint of the middle tarsi in the males as a character. 



It is a detraction from any character that it requires an exa- 

 mination of both male and female to recognize it; and although 

 the character is perfectly true in this group, it cannot be used in 

 contrast to the subsequent divisions which I am going to pro- 

 pose, as in them exceptions to such a rule occur. I think the 

 following short characters sufficient. 



Group I. (Subgenus Choleva.) 



Mesosternum not keeled ; body oblong ; antenna almost filiform ; 

 legs long and thin, posterior trochanters more or less developed in 

 the males. 



1. C. angustatus, Eab. 



Cistela angustata, Fab. Syst. El. ii. 20. 23. 



agilis, Fab. Syst. El. ii. 20. 27. 



Catops elongatus, Payk. Faun. Suec. i. 345. 3; Gyll. Ins. i. 281. 6. 



Ptomaphagus rufescens, Illig. Kaf. Pr. 87. 1. 



Catops rufescens, Duft. Faun. Aust. iii. 72. 1 ? 



Choleva oblonga, Lat. Gen. Crust, et Ins. ii. 27- 1 ; Spence, Linn. Trans. 



xi. 138. 1. 

 Catops angustatus, Erich. Kaf. d. Mark Brand, i. 233. 1 ; Sturm, Deutschl. 



Faun. xiv. 5.1. taf. 272. M. m ; Heer, Faun. Helv. i. 378. 1 ; Redtenb. 



Faun. Aust. 143. 4 ; Fairra. & Laboulb. Fn. Ent. Franc, i. 299. 1. 



Oblongus, fuscus vel nigro-piceus ; thorace postice non latiore ; 



elytris substriatis; antennis pedibusque ferrugineis. 

 Long. 2 J lin. 



A long thin species. The head dark, the parts of the mouth 

 and the antennae ferruginous ; the latter about the length of the 

 elytra, the eighth joint a little smaller than the ninth, the last 

 joint long and acuminate. The thorax is variable in form, 

 sometimes widest at the middle, as in fig. 1, sometimes widest a 



* This description of the characters of the genus is copied with some 

 modifications from that given by Prof. Lacordaire in his admirable work 

 the ' Genera des Coleopteres.' 



