DAM^US SUFFLEXUS. 415 



DAMiEas SUFFLEXUS,* Michael, PL XXXIV, figs. 9, 10. 



Damcetis sufflexus, Micliael. Journ. Roy. Microsc. Soc, scr. ii, 



vol. V, p. 10. 



Average length about '65 mm. 



Average breadth about '40 mm. 



Average length of legs (first pair) about '62 mm. 



Average length of legs (second pair) about '52 mm. 



Average length of legs (third pair) about "56 mm. 



Average length of legs (fourth pair) about '70 mm. 



This species is remarkable for the great extent to 

 which the dorsal plate of the abdomen is turned over 

 on to the ventral surface posteriorly, and the conse- 

 quently small size of the ventral plate. 



Colour dark hazel- brown. 



Texture dull, without any gloss ; that of the cephalo- 

 thorax and legs rather rough. 



Form. — That of the typical species of the genus (as 

 /). clavipes, D. geniculatus, &c.). 



Cephalothorax. — Rostrum rather long, rounded at 

 the tip, and having a slight median carination which 

 extends halfway along the cephalothorax. There is a 

 rounded boss on the dorsum on each side, beyond the 

 outer edge of which the first leg is articulated. Behind 

 these bosses the cephalothorax is sharply constricted, 

 the constriction, however, being narrow and shallow. 

 Behind this constriction there is a larger boss on each 

 side, beyond the outer edge of which the second leg is 

 articulated; these posterior bosses carry the pseudo- 

 stigmata ; behind the bosses the cephalothorax is 

 again narrowed, but less sharply. Rostral hairs 

 strongly curved, rather thick. There are a pair of 

 much larger similar hairs corresponding to the lamellar 

 hairs, but there is not any trace of a lamella. Pseudo- 

 stigmata long, very projecting, and standing nearly up- 

 right, the outer edge light-coloured. Pseudo-stigmatic 

 organs long, rod-like, or filiform. 



* Sub, under ; flecto, I bend. 



