274 CORTICICOLINA. 



triangular plate. Oonnexivum above, with a continuous slight ridge 

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

 an angular deep orauge spot ; the lust segment posteriorly rounded 

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

 inner angle of each segment. Genital segments, in the (J , 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, rovmded 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, 2i— 3| lines. 



Not common. Under the loose bark of firs, in summer ; AV^est 

 Wickham, Kent. 



Sjjecies 3. — Aradus aterrtmus. 



Akadus aterbimus, Fieb. in litt. 

 Deep black, dull, the granulations all fine. 



Seacl 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 ; Croivn with a deep fovea towards each 

 side. Antennce thin ; Lst 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 f the length of the 2nd, apex straight ; 4-th 

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

 large and prominent. liostrum reaching to the 1st pair of coxae, 

 black-brown. 



Thorax. — Fronotiim ; anterior margin slightly concave, longer 

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



