202 Hemiptera-fleteroptera. 
narrow as in Tetraphleps, sides behind it rounded, but only 
very narrowly reflexed quite near the anterior angles, base 
sinuate, disc punctured and clothed with fine pale hairs, 
having a bright smooth elevation in front of the transverse 
impression ; scutellum punctured ; elytra punctured, clothed 
with adpressed pale hairs, membrane pale smoky-yellowish ; 
legs pale testaceous. 
L. 5 mm. 
Common on fir trees, and generally distributed. 
A. alpinus, Reut—Very like a narrow, dark form of 
the preceding, but the membrane in the ¢@ is longer 
and the whole insect larger, darker, and more elongate. 
The 2 is more difficult to separate, but it is darker, 
and the elytra are less distinctly punctured, although, if 
anything, more coarsely so. In doubtful cases, however, 
I believe the antennal characters will always decide the 
question ; in this species the third and fourth joints are 
subequal, whereas in pygnweus the fourth is distinctly 
shorter than the third. 
L. 33-4 mm. 
Norwich, Dossetor ; Forres, Norman; Esher, Champion ; 
Hurst Green, Battle, Butler. 
TRIPHLEPS, Feb. 
Of this little genus we have three out of the eleven 
species recorded by Dr. Puton in his Catalogue. All the 
species are closely allied, but can be separated satisfactorily 
after careful examination. The genus is quite distinct from 
any of its allies by its small size and broad form; in these 
it approaches nearer to Brachysteles and Cardiustethus, 
which, however, want the hook-like nerve in the wing cell, 
which is present here. 
Head short, first joint of the antennee reaching to about 
the apex of the head, third and fourth subequal; in one 
species, nigra, Wolff., the antennz are considerably thickened 
in the g, in the others they are only slightly thicker than 
