430 APPENDIX. 



legs, and apex of abdomen dusky-ferruginous; thorax with an obscure 

 channel ; elytra quadrate, pitchy. 

 This insect Mr. Iludd informed me he had found at Croft, near Darlington, in 

 the spring of last year. 



Page 105. Sp. 2. Hom..'' dimidiata. Steph. Nomen. 2d edit. col. 91. — Curtis, 

 V. xi. /;/. 514. — Al. dimidiata. Grav. Mo. 149. — Al. basella, p. 112. — This 

 species differs in the structure of the antennae and of the tarsi (the joints 

 being of equal length) from the type, and ought probably to be separated 

 therefrom : I obtained it from the Rev. D. I. J. Preston, who found it in 

 Askham bogs : it has also occurred in Battersea fields. 



Page 107. DiNARDA dentata. Lomechusa dentata. Curtis, v. xi. pi. 510. 



Page 109. Germs 490 a. GYMNUSA, Karsten. 



Antennce ^Wiorm, not geniculated, the articulations equal ; the terminal joint 

 oblong, somewhat conic. Maxillary palpi short, with the apical joint subu- 

 lated ; head somewhat transverse, with the mouth projecting triangularly ; 

 eyes large ; thorax narrowed in front, disc anteriorly convex ; elytra rather 

 wider than the thorax ; four anterior tibice spinose ; tarsi slender. 



Page 109. Sp. 1. Gym. dubia. Steph. Nomen. 2d edit. col. 91. — Ale. dubia. 



Grav. Mo. 173. — Nigra opaca, sericeo-pubescens, ore, antennarum basi, 



pedibus anoque ferrugineis, thorace convexo wquali, abdomine conico piloso. 



(Long. corp. 1 lin.) 

 Black, opaque, with a silken pubescence ; mouth, antennae at the base, the 



legs and apex of the abdomen ferruginous ; thorax convex ; abdomen conic, 



pilose. 

 Taken near Bristol. 



Page 110. Genus 490 b. ISCHNOPODA, Steph. (Iffxvoe gracilis, ttovc pes.) 

 This corresponds with my section A. of Aleochara ; and in addition to the 

 form of the thorax, and a trifling variation in that of the palpi, may be 

 noticed the length and slenderness of the tarsi, especially of the posterior 



legs. 



Page 113. Genus 490 c. POLYSTOMA, Steph. (ttoXwc multus, TOjua oris.) 

 Antennce rather short and thickened, faintly geniculated at the base, the basal 

 joint longish aud robust, the second also longish, third shorter, fourth and 

 following gradually thickening and shortening, the terminal one thickest, 

 obtuse, conic. Palpi with the terminal joint elongate, fusiform, acute; 

 mouth prominent ; mandibles acute ; head thick, rounded, narrower than 

 the thorax ; eyes small ; thorax somewhat orbicular, truncate in front ; elytra 

 subquadrate, apex entire; abdomen linear obtuse; body clothed above with 

 a dense pubescence ; legs rather short, ciliated ; tarsi short. 



Page 126. Genus 490. ZYRAS, Stephens. 



Antennce lather long, faintly geniculated, the basal joint long, robust, subclavate. 



