124 CARABID^l. AMARA. 



12. A. strenua : oblong a, convexa, anea ; thorace basi utrinque 



profunde unistriato ; elytris punctato-striatis, striis postice 

 profundioribus ; antennarum articulis tribus basi rufo- 

 testaceis ; tibiis tarsisque ferrugineis ; tibiis anticis spina 

 apicali tricuspi. 



Zimm. Gist. Faun. 1. 32. Erichson, Kafer, 84. 



A. Vectensis, Dawson, Ann. Nat. Hist. 3. 213 (1849). 



A. tricuspidata, Steph. Manual, p. 38. 



Oblong, convex, above brassy brown, greenish brass, more 

 rarely blue-black, head, thorax and elytra not always concolorous ; 

 antenna? fuscous black, with the first, second, third and basal 

 half of the fourth joints red. Thorax subquadrate, the breadth 

 greater than the length, narrowed in front, anterior angles 

 scarcely prominent, sides rounded till about the middle, after that 

 nearly straight to the hinder angles, which are acutely prominent, 

 the basal margin being sloped downwards at the extremities so 

 as to give that appearance, disk convex, dorsal furrow transversely 

 wrinkled and terminated before and behind in a slight depression, 

 having numerous fine striae impressed thereon, the base being 

 furthermore furnished with a very deep oblong stria or small 

 fovea on each side about midway between the dorsal furrow and 

 the lateral margins and a smaller one close to each angle. Elytra 

 oblong, sides very slightly rounded, convex, finely punctate- 

 striated, the punctures vanishing before the extremity when the 

 striae deepen ; thighs pitchy black, tibiae and tarsi rusty red ; 

 anterior tibise with the spine at the apex tricuspid, the middle 

 mucro being longest, stoutest and slightly incurved, the inner one 

 smallest. Length 4 lines. 



This species has hitherto in this country been found exclusively 

 in the Isle of Wight, and is usually abundant in the marshes near 

 Ryde early in the spring. 



13. A. plebeia : oblongo-ovata, eenea, nitida ; thorace postice 



utrinque bifoveolato, foveis crebre punctulatis ; elytris 

 punctato-striatis ; antennarum articulis tribus basi tibiis- 

 que rufo-testaceis ; tibiis anticis spina apicali tricuspi. 



Harpalus plebeius, Gyll. Ins. Suec. 2. 141. 



Amara plebeia, Dej. Spec. 3. 467; Icon. 3. 249. pi. 161. Steph. 



Mand. 1. 132, et Manual, p. 38. Erichson, Kafer, 84. Heer, 



Faun. Helv. 92. 

 A. nitida, Steph. Manual, p. 37- 



Above brassy black, or greenish brass. Head convex, smooth 

 and shining, obsoletely impressed in front, palpi and antennae 

 black, three joints at the base of the latter red. Thorax narrowed 



