INSECT A COLEOPTERA. 
197 
superficial points and extremely finely dotted interstices on the elytra, 
from Andalusia. SpJuErotus has eight species, in three sub-divisions ; 
Sph. curvipes, Kirby ; cribratus, new species from Paraguay ; Icevigatus 
and costatus, new species from Brazil, have a longish convex prothorax ; 
8ph. politus, new species from Mexico, has a longish but less convex 
prothorax, narrowed anteriorly ; Sph. gravidus, thoracicus, mexicanus, 
new species from Mexico, have a shorter and flatter prothorax, also the 
five penultimate joints of the antennae less conical. Zophius, a new genus, 
founded on the Helops rufo~pictus, Wied. ; Heliofugus, Guer. {Amphysus, 
Dej.), with the three species described by Guerin in the Mag. de Zool. ; 
lastly, a new genus, Dinomus, allied to Heliofugus, but the clypeus 
not distinctly divided from the forehead, the prothorax almost of the 
breadth of the elytra, &c., with a single new species, D. perforatus, from 
Mexico. In the separately published treatise, the generic characters 
are figured. 
In the gToup of the Opatridce, the reporter has described (Arch. 1842, 
i. p. 172) one new New Holland genus, Cestrinus, with two new species 
from Van Diemen’s Land, which has the habit of Opatrum, but is 
apterous, and differs in the undilated anterior tibiae, &c. 
Schiodte has given a description of the internal structure of Opatrum 
sahulosum (Kroyer, Naturh. Tidsskr. iv. p. 204). 
Westwood (Proceed. Zool. Soc. 1841, p. 66) laid before the Zoological 
Society of London, a paper on some Tenebrionidce of tropical Africa, in 
which several new species are described : Chiroscelis bifenestrella and 
passaloides ; Prioscelis {Iphius, Dej.) Raddoni and crassicornis, from 
Guinea ; and Odontopus tristis, from Senegal ? There is a continuation 
in the Proceedings for 1842, p. 117. Besides seven species of Nycto- 
bates, N. moerens, confusus, punctatus {Helops punct., F.), hypocrita 
{Iphthin. hyp., Dej., guineensis, Westerm.), transversalis, brevicornis, 
rotwndicollis, four new genera are described : Calostegia ; large, oblong, 
sides of prothorax serrated towards the anterior angle ; antennae short 
and thick, the 7-lOth joints larger than the rest, the eleventh still 
larger and somewhat pointed ; the interior maxillary lobe has a hooked 
tooth at the point, all the thighs with two spines near their apex, tibiae 
sinuated on the inner side both above and below their middle ; C. pur- 
puripennis, from Ashantee. Nesioticus ; short, round, strongly gibbous, 
inner maxillary lobes without hooks, terminal joints of the maxillary 
palpi hatchet-shaped, antennae compressed, a little thickened towards the 
point, legs simple, mesosternmn forming a blunt projection : M. Jla- 
vopictus, from the Gold Coast. Og cosoma ; short and very broad, 
antennae thin, scarcely thickened towards the point, both maxiUary ap- 
pendages membranous, prothorax convex, all the angles sharp, elytra 
convex with interrupted ribs, legs thin bristly : O. granulare, from 
Gambia. Megacantha ; thick and convex, eyes kidney-shaped, inner 
241 Q 
