[June 1882. BULLETIN BROOKLYN ENTOM. SOC. VOL. V. 9 
On the species of Pterostichi, Gow. 
By F. G. ScHaupp. 
One of the most mixed up groups of Carabidze is that of Pterostichi. 
The greatest Coleopterists have worked at it, but while Latreille unites all 
the species in one genus Feronia, to which Bonelli adds the genera of 
Poecilus, Pterostichus, Platysma, and Abax, Megerle those of Argusor 
and Sveropus, Ziegler that of Omaseus,—Chaudoir divided them into 42 
genera! ! 
Leconte divided our species into six genera, namely Lvarthrus, Lo- 
phoglossus, Holciphorus, Pterostichus, Loxandrus, and Piesmus, (Proc, Ac. 
Phila. 1873, p. 302.) retaining however ten of the above generic names 
for subdivision of the genus Pterostichus. Horn in his recent treatise on 
the genera of Carabide (Trans. Am. Entom. Soc. IX, p. 139.) recognizes 
but three genera, viz: Prerostichus, Lvarthrus and Loxandrus, reverting 
Lophoglossus, Holciophorus, Piesmus and the second half of Evarthrus to 
Prerostichus. \ 
In Gemminger and Harolds Catalogus our species have been placed 
into seven genera viz: Poecilus, Argutor, Omaseus, Steropus, Pterostichus, 
Abax and Platysma. 
The genus Poecilug (first antennal joint compressed) embraces be- 
sides species 617-627 in Crotch’s Check-list, also P¢. Californicus. The 
genus Areutor (first antennal joint rounded; epimera of metathorax long- 
er than broad; last joint of palpi oval, ) contains besides our species of 
Loxandrus, 24 honestus, lachrymosus, purpuratus, lustrans, erythropus, 
patruels, femoralis, Kirby, and desdiosus. The genus Qmaseus (last joint 
of palpi cylindrical, truncate) embraces the Nos. in Crotch 628 to 631, 
also our former Lophoglossus, P/ mufus and Lv. gravidus Hald. 
To the genus Steropus (epimera of metathorax not longer than broad, 
posterior angles of prothorax and humeri rounded) belong all our species 
of Evarthrus, and also Ps. ¢umescens, obscurus, and ventralis, which in fact 
seem on a general view very properly placed among the Evarthri. 
Abax contains four species, namely: Pt fallax, sculptus, striatus, 
and permundus. : 
To Pterostichus (hind angles of prothorax and humeri more or less 
prominent) belong Holciophorus avr, then Pt Menetrisit, castanipes, 
Lsabelle, longicollis, Lec., sphodrinus, mancus, lutricus, coracinus, stygicus, 
protensus, moestus, punctatissimus, 
Platysma includes Piesmus, Ps planctus, herculaneus, validus, pro- 
tractus, vicinus, angustus, amethystinus, castaneus, longicollis, Motsch., a- 
doxus, vitreus, orinomum, Luczotti, oregonus and Nos. 645-657 (Crotch. ) 
