AGONID.E. 23 



(23) 6. Chl/enius emarginatus. Emarginate Chlcenius. 



Chlaenius emarginatus. Say. Amer. Trans. N. S. 64, 7. De J. Coleopt. ii, 366, 65 ? 

 Length of the body 6f lines. 



Taken in the Journey from New York to Cumberland-house. 



DESCRIPTION. 



Body hairy, punctured ; black underneath. Head glossy green, with a tint of copper between 

 the eyes, and a network of very minute, confluent, transverse wrinkles ; maxilla; and palpi rufous, 

 maxillary palpi very long ; upper-lip transverse, rufo-piceous, anteriorly subemarginate ; mandibles 

 piceous ; antennae rufous, longer than the prothorax with the third joint rather longer than the 

 fourth : prothorax dusky-green, transverse, rather narrowest at the apex, very thick and minutely 

 punctured ; basilar impressions double, the inner one the longest : elytra black with a very faint 

 tint of blue : legs rufous. 



This is most probably the Chlcenius emarginatus of Say, but it does not exactly accord with 

 De Jean's description. 



(d.) Cystopoda. Kirb. 

 (y) Dimana. Kirb. 



Family AGONIDiE. Agonidans. 



X. Genus PLATYNUS. 1 Bonell. 



(24) 1. Platynus angusticollis. (De Jean.) Narrow-necked Platynus. 



Platynus angusticollis. De J. Cat. 10. Steph. Ittustr. Mandib. i, 83, 1. 

 Carabus angusticollis. Fab. Syst. Eleuth. i, 182, 64. 



■ Duft. Fn. Austr. ii, 173, 231. 



assimilis. Payk. Fn. Suec. i, 119, 30. 



collaris. Marsh. Ent. Brit, i, 443, 39. 



Harpalus angusticollis. Gyll. Ins. Suec. ii, 81, 2. 



Anchomenus angusticollis. Sturm. Deutsch. Fn. v, 168, 2, t. xxx ? De J. Coleopt. iii, 104, 3 



Length of the body 5 lines. 



Taken in Lat. 54°. and 65°. Not uncommon in Britain. 



1 Latreille places this genus, Anchomenus, and Agonum, in the same tribe with Chlcenius, Licinus, Panaycevs, &c. which 

 he distinguishes by the appellation of Patellimani, f Crust. Archn. et Ins. i, 401,*) but it seems to have escaped this learned 

 and acute Entomologist, that in these genera, though the form of the dilated joints of the hand of the males differs from 

 that of his Simplicimani, yet that underneath, like them they are furnished, not with a brush like the last named genera, 

 but with little membranous bags or cysts. 



* I have quoted this work under the title which M. Latreille himself affixed to those copies that were presented to his friends 

 or sold separately — viz. Les Crustaces, Les Arachnides et Les Insectes, forming two volumes per se, and the 4th and 5th of Baron 

 Cuvier's 2nd edition of the Rigne Animal. 



