of new genera and species of Tenehrionidxe. 351 
sides well rounded, front angles outwardly curvedly pro- 
duced, very prominent, acute ; basal angles shorter, acute, 
outwardly directed, free ; sides a little expanded and slightly 
attenuated, the edges moderately and almost uniformly 
thickened ; base rather strongly bisinuate, broadly lobed 
in the middle, finely margined : scutellum convex, mode- 
rately transversely and curvilinearly triangular : elytra 
oblong-oval, but little convex, a little broader at base than 
base of prothorax, middle of base subtruncate, slightly 
oblique at each side ; shovilders feebly rounded, lateral 
margins reflexed and slightly canaliculate within ; epi- 
pleural fold moderately broad, subhorizontal, entire : legs 
moderate, rather slender ;^(??«o?'a compressed, feebly clavi- 
form : tihice. sublinear, slightly thickened at apex, the pos- 
terior with a fine tomentose line within, near the apex, 
spurs minute, two to each ; tarsi channelled beneath (the 
posterior at least), and clothed — as well as the apex of the 
tibia3 within — with fine golden hairs, first joint of the inter- 
mediate nearly as long as the two following united, first 
of the posterior longer than the two last : intercoxal process 
wide, apex broadly rounded : prosternum full and convex, 
its process robust, horizontal, prominent, and rounded 
behind: mesosternurn subvertical and broadly concave in 
fi'ont, its epimera posterior: metasternum longer than 
ordinary in this group, equalling in length the 2nd ven- 
tral segment : 3rd and 4th ventral segments slightly 
sinuously emarginate, and broadly coriaceous, behind : an- 
tenna — except the first five joints, which are like those in 
Onosterrhus — wanting : body oblong-oval, subdepressed, 
smooth. 
The general form, and the scutellum, approach this genus 
to Cilihe, but the form of head, the thickened lateral edges 
of prothorax, the bulging prosternum, the broad intercoxal 
process, the legs, and the tarsi, are more those of the Ono- 
sterrhus group. The metasternum is longer than in any 
of the related genera. 
Amphianax suhcoriaceus, n. sp. 
Oblong-oval, subdepressed, black, opaque : head mi- 
nutely punctured, a shallow, foveate depression at each 
side the fi-ont, close to the eye : prothorax not visibly 
punctured, a slight oblique impression at each side the 
basal lobe : scutellum sparsely, but distinctly punctured : 
TRANS. ENT. SOC. 1873. — PART III. (aUG.) C C 
