274 CORTICICOLINA. 



triangular plate. Connexivum above, with a continuous slight ridge 

 near the inner margin ; the posterior margin of each segment with 

 an angular deep orange spot ; the last segment posteriorly rounded 

 in the $ : underside with a small yellow nodule near the posterior 

 inner angle of each segment. Genital segments, in the , beneath, the 

 single segment is very convex, rounded posteriorly, the foliaceous 

 margin broad, horizontal, projecting far beyond the rounded pos- 

 terior margin on the upper surface; the sides of the projection 

 roundly divergent, then suddenly convergent, but projecting, form- 

 ing two long, slightly sinuate lobes, rounded at the apex, leaving a 

 wide deep notch between them, the edges of the cleft united into a 

 ridge half way up the convex part of the segment ; the lobes are 

 black externally, yellowish internally. In the ? beneath, the 1st 

 of the two visible segments within the connexivum, broad, quadrate, 

 cleft in the centre, posteriorly with a large, central, angular, yellowish 

 spot; the last segment is short, triangular, convex, basal angles 

 prominent, apex obtuse, the foliaceous margin as in the J . 



Length, 2| 3| lines. 



Not common. Under the loose bark of firs, in summer ; West 

 Wickham, Kent. 



Species 3. ARADUS ATERRIMUS. 



ARADTJS ATERRIMUS, Fieb. in litt. 

 Deep black, dull, the granulations all fine. 



Head long, rather narrow, a little widened in front, sides straight, 

 raised, with a small tubercle close to the eyes ; before the eyes 

 greatly deflected ; antenniferous processes acute, the spinose points 

 slightly turned inwards ; central lobe a little widest at the base, its 

 sides somewhat compressed ; Crown with a deep fovea towards each 

 side. AntenncB thin ; 1st joint thickest, oval ; 2nd and 3rd clavate, 

 the base with a short petiole ; 2nd not quite so long as the 3rd and 

 4th together ; 3rd \ the length of the 2nd, apex straight ; 4th 

 half the length of the 3rd, long fusiform, apex white. Eyes very 

 large and prominent. Rostrum reaching to the 1st pair of coxa3, 

 black-brown. 



Thorax. Pronotum ; anterior margin slightly concave, longer 

 than the width of the neck ; side margins narrow, but rounded at 



