INSECTA COLEOPTERA. 
165 
Ahropus, Waterhouse (Ann. Nat. Hist. ix. p. 134, t. 3, f. 1), formed 
from the Metius splendidtis, Guer. ; differing from the Metius harpaloi- 
des, Curt., which is the type of the genus Metius, by its Anchomenus- 
lite form, as well as much longer antennae, and labrum not distinctly 
emarginate in front ; but the most important difference is in the structure 
of the tarsi, the penultimate joint of which is distinctly bilobed, and 
furnished beneath with membranous appendages in both sexes. Ahropus 
approaches very nearly to Antarctia, the only essential difference is, 
that Antarctia has no appendages on the fourth tarsal joint. 
Amhlytelus, Erich. (Arch. 1842, i. p. 129, t. 4, f, 2), is a distinct genus 
of Pterostichince, which is distinguished particularly by the bilobed fourth 
tarsal joint; and in this, as well as in the colour, approaches many 
Truncatipennoi ; the only species is C.. curtus, F. 
Lestignathus, Erich, (ibid. p. 132, t. 4, f. 3), is a genus of Ancho- 
menincB, with one new species, L, cursor, from Van Diemen’s Land, 
distinguished principally by the broad toothed mandibles crossing each 
other. 
Ophryodactylus, Chaudoir (Bull. Mosc. p. 832), allied to Dyscolus, 
differing only by the tooth on the mentum being cleft ; the tarsal joints 
are deeply furrowed at the sides, so that they seem to have a padded 
border. 0. suhviolaceus is a new species from Brazil. 
Paranomus, Chaudoir (ibid. p. 835), also allied to Dyscolus, and, as it 
seems, chiefly distinguished by the tooth on the mentum being some- 
what emarginate at the point. P. L’herminieri, new species from 
Guadaloupe. 
Homothes, Newman (Entomologist, p. 402) ; very nearly allied to 
Euleptus, Klug, differing chiefly in its form, as the thoarx is much 
narrowed posteriorly ; the elytra, more rounded at the sides, flat, striated, 
“ lanugine sericata maculatim ornata.” H. elegans, from Port Philip ; 
a second species is Euleptus sericeus, Erich. (Arch. 1 Bd. p. 131, 17). 
The essential characteristics of the genus are still to be ascertained ; 
it will tlien be shown if it is really different from Euleptus. 
Cyphosoma, Hope (Proceed. Ent. Soc. Lond. p. 46), and Gyrtoderus 
(ibid. p. 47), I do not understand, and therefore can only name them. 
The former is between jEnigma [Helluo) and Catascopus, the latter 
appears to its author to be allied to Zahrus. The species Cyphosoma 
unicolor and Gyrtoderus australasim, are from Port Essington. 
Molpus, Newman (Entomologist, p. 413) ; of this also I know nothing- 
worth mentioning. The author has not pointed out its position. From 
its very large eyes, it might be joined to Scopodes (vide supra), but the 
notice of it is very slight. M. 6-punctatus, from Adelaide, appears at 
least to be different from the Sc. hoops of the reporter. 
The number of species newly described is great. Of European species 
there are Dyschirius salinus, Er. Schaum (Germ. Zeitschr. iv. p. 180)^ 
209 O 
