1S74.] 81 



figure of that spci-ii-M an given on [)late ii, f. oi" Von Jleyden's Eeine; 

 the after-body of P. Saulcyi is, however, notably broader tlian the 

 figure represents that of Diechi. The single individnal I have seen of 

 this species has the anterior trochanters very prominent, and acutely 

 anguhited, and is particularly remarkable by tlie structure of its 

 metasternum, the central portion of which is prominent and flattened, 

 and forms as it were two oval plates which appear to be covered with 

 a i)cculiar glandular matter. The basal segment of the hind body is 

 not in the least impressed in the middle, and this has raised some little 

 doubts in my mind as to the sex of this individual ; I feel, however, 

 pretty certain that it is a male, 



I captured my single specimen of this, which is, perhaps, the most 

 remarkable species of the genus, at Reynosa, in the north of Spain, 

 and I have named it witli much pleasure in honour of M. de Saulcy, 

 who has described also some higlily remarkable forms of this genus 

 from the same country. 



Bythinus ocdipus, 11. sp. 



liiifcscens ; vertice Icevignto ; eJytris parce fort iter pimctatis ; pro- 

 tliorace lato, hasin versus valde angustato. Lone/. If mm. 



Mas : antennarumarticuloprimo cylindrico Jeviterincrassato,seciindo 

 suh-qtiadrato, precedente fere latiore, angulis internis suhrectis (i. e., an- 

 teriore suboltuso, posteriore acuto), margine interna quant externa hand 

 hreviare, acuminata : femarihtis omnibus valde inflatis ; tibiis anticisante 

 apicem subita attenioatis, poster ioribus incrassatis intus medio dente magna, 

 apice interna acuta. 



Patria, llispania (E-eynosa). 



This species is highly remarkable by the structure of its legs, and 

 in this respect the Portuguese B. lusitnnicus, Saulcy, appears to be 

 allied to it; but, if I correctly interpret do Saiilcy's description, the 

 second joint of the antenna is differently shaped in that species. The 

 species should be placed near B. clavicornis and B. crassicornis. 



Bythinus Ckotchi, n. sp. 



liufescens ; vertice Icevignto ; protliorace magna, basin versus valde 

 a})gustato ; eh/tris pnrce minus distincte jiunctatis ; oculis (inaris) parvis. 



Lang, cor p. \% mm. 



Mas : antennarum articuJis duabus basalibus simplicibus, primo 

 elongata ; frmaribus omnibus incrassatis ; tibiis anterioribus ante api- 

 cem subito angustatis ; pasterioribus gracilibus elangatis. 



Pat rid, Ilispanin (Keynosa). 



