Genera and Species of Coleoptera. 487 
on each side, the first behind the middle, the posterior nearly at the 
base and the smaller of the two; scutellum triangular, below the level 
of the elytra; elytra obtusely elevated in the middle, irregularly covered 
with coarse, deep punctures of varying size ; body beneath and legs steel- 
blue, the latter darker, finely punctured; antennze with the 7th joint 
obconic, the succeeding ones more or less transverse. Length 8 lines. 
Very distinct, on account of its uniform dark-blue colour, from any 
of the nineteen species described in M. J. Thomson’s Monograph. 
Srvorrum [Strongyliinee ]. 
Characteres ut in Strongylio; sed oculi minores. Antenne breviuscule, 
art. quatuor ultimis transversis, clavam compressam formantibus. Tarst 
articulis, duobus ultimis exceptis, dilatatis, art. basali quam sequens 
vix longiore, art. ultimo czteris simul sumptis sequali vel longiore. 
To these characters it may be added that the three or four basal 
joints of the tarsi are fringed with long hairs, and that the onychium 
is very distinct. The type is Sinopium variabile, Walker (Strongy- 
lium), from Ceylon. 
The two following genera of Tenebrionide having been suggested 
by M. Lacordaire, I have here given them names. 
Acxronoma [ Zopherine }. 
Type, Ageonoma diabolica. 
Nosoderma diabolicum, Le Conte, Ann, Lyc. New York, v. p. 130. 
Differs from Nosoderma in having prothoracic canals for the re- 
ception of the antennez, and in the mandibles being entire at the 
apex, and from Zopherus in the labium and labial palpi being ex- 
posed, the mentum broadest at the base, contracted anteriorly, and. 
deeply emarginate at the apex, in the subperfoliate antenne, with 
the 11th joint nearly obsolete, the absence of the transverse groove — 
on the last abdominal segment, &c. Lacordaire, Gen. v. p. 92. 
Zyeas [Adelostominee ]. 
Type, Zygas cimicordes, 
Eurychora cimicoides, Quensel in Schénherr, Syst. Ins. i. p. 137, note, 
Differs from Steira in having the third joint of the antenne longer 
than the first, and from Zurychora and Pogonobasis in the base of 
the elytra being close to the base of the prothorax. Lacordaire, 
Gen. v. p. 98, note. 
