10 PSELAPHIDZ. 
Motschulsky (Etudes ent. 1855, p. 16) speaks of what we may presume to be the 
same insect under the name of C. perplerus; C. batrisioides, Motsch., is said by Reitter 
to be the same as the North-American C. batrisoides, Lec. 
Subfam. BATRISINA. 
METOPIAS. | 
Metopias, Gory, in Guérin’s Mag. Zool. 1832, Ins. t. 42, text p. 1; Aubé, 1. c. 1833, Mon. Pselaph. 
p- 18, t. 78. f.1; Reitter, Deutsche ent. Zeit. xxix. p. 834 (1885). 
This genus is purely tropical American, and comprises five species; Reitter having 
recently separated another five species under the generic name of Metopiorys. 
1. Metopias elegans. (Tab. I. fig. 10.) 
Pallide castaneus, elytris rufo-testaceis, antennis pedibusque testaceis, pube erecta subtili vestitus ; prothorace 
elongato, ante basin transversim sulcato; antennis valde elongatis, articulo tertio graciliter ovali et 
sequentibus tribus simul sumptis majore. 
Long. 23 millim. 
Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion). 
Antenne pale yellow, longer than the insect itself; the first joint as long as the 
following seven or eight joints together, the second longer than broad, the third broader 
and very much longer than the second, the five following joints subequal to one another, 
simple, the ninth scarcely thicker but much more elongate, the tenth small, the eleventh 
rather longer than the ninth and quite acuminate at the apex. Palpi rather short. 
Head elongate, the vertex with a deep impression; the antennal tubercles divided bya | 
groove, and the posterior part of their prolongation projecting backwards in an angular 
manner into the depression on the vertex. ‘Thorax slender, unarmed ; very obsoletely 
longitudinally canaliculate along the middle ; with a deep fine transverse sulcus in front 
of the base, and without lateral channels. Elytra elongate, narrowed at the shoulders, 
the latter only slightly prominent, with a very deep depression along the suture, and a 
‘short basal depression external to this. 
The solitary example discovered is no doubt a male, the extremity of the hind body 
beneath being deeply excavate, while in front of the excavation there are two erect 
subcurvate spinous processes. The species is not closely allied to any yet described, 
but perhaps is nearest to M. hirtus, Reitt., from Brazil. 
BATRISUS. 
Batrisus, Aubé, in Guérin’s Mag. Zool. 1833, Mon. Pselaph. p. 45. 
This is now avery large genus comprising upwards of two hundred described species, 
and is found in most parts of the world. It contains a very great variety of forms, and 
is especially remarkable on account of the extraordinary sexual characters, scarcely any 
part of the body being exempt from being the seat of peculiar structures in the male 
