aradidtE. 271 



they are botli cleft down the middle, and the margins of the cleft 

 are united into a ridge ; the first in order of the segments is trans- 

 versely quadrangular ; the next, somewhat variously formed at the 

 base, is extended on the posterior margin, as on the upper side, the 

 end of the 1st segment sometimes projecting through the cleft in 

 the convex basal portion. 



The species oi Ay'adus are said to feed on fungi. 



Sjjecies 1. — Aradus depressus. 



AcANTHiA DEPKESSA, Fab. E. S. iv, 72, 22 (1794) ; Wolff, Ic. Cim. iv, 



129, t. 13, fig. 123 (ISOl). 

 Aradus depeessus, Fab. S. R. 119, 10 (1803); Fall. Hem. Suec. ]38, 7 



(1829); Burm. Handb. ii, 256, 5 (1835); H. Schf. 



Wanz. V, 93, t. 176. fig. 542 (1839) ; Sahib. Geoc. 



Eeu. IM, 11 (1818); Flor, Rliyu. Liv. i, 391, 8 



(1800) ; Fieb. Europ. Hem. 112,''5 (1861). 

 PiESTOSOMA depkessum. Am. et Serv. Hem. 309, 1 (1813), 



Brown-black, with brown granulations ; 2nd joint of the antennce a 

 little longer than the 3rd; 1st ^rds of the side margins of the 

 p;*o«o/M?;i yellowish-white; eZj/Zr^ yellowish- white, mottled with 

 black, the widened anterior margin clear. 



Head with 3 rows of large granulations, 1 down the middle and 1 

 on each side, on the latter a very short spine close to the eyes. 

 Antennce thick, black ; 1st joint light brown ; 2nd and 3rd with a very 

 short petiole ; 3rd with the apex truncate ; 4th small at the base, 

 apex white. Tlyes black. Rostrum brownish-yellow, apex black, 

 reaches to the middle of the prosternura. 



Thorax. — Pronotum ; anterior margin short ; sides, within the 

 margin, concave, divergent to the hinder angles ; side margins thin, 

 broad, reflexed, smooth and yellowish for frds of the length, 

 gradually rounded off at the hinder angles, seen from side curved 

 upwards in the middle ; the edge granulated, with 1 or 2 larger more 

 prominent spinose granules at the anterior angles ; hinder sides not 

 foliaeeous, slightly convergent ; hinder^angles rounded ; posterior 

 margin nearly straight ; disk with an anterior, transverse depression, 

 the posterior 4 broad, convex ; the keels parallel, sharp, but thickly 

 granulated, follow the longitudinal contour of the pronotum ; the 

 2 middle ones nearer to each other than to the side keels, pos- 

 teriorly divergent. Scutellum concave, base raised, with a short, 



