190 HISTERIDZ. 
are fairly distributed in the tropics, the larger number coming from the eastern 
archipelago. About thirty-three species have been described, but only one has as yet 
been detected in Central America. 
1. Apobletes connectens, sp. n. (Tab. IV. fig. 21.) 
Oblongo-parallelus, planatus, brunneus, nitidus; antennis pedibusque rufis; fronte sparsim punctulata, 
utrinque marginata, ante oculos angulata; pronoto punctis aliquot sparsis lateribus, stria marginali 
pone oculos interrupta; elytris stria humerali apice abbreviata, striis 1*-4™ integris, 5* et suturali in medio 
abbreviatis, anticis coeuntibus; propygidio pygidioque sparse punctatis; prosterno lato, plano, utrinque 
marginato, basi parum sinuato; mesosterno transverso, antice bisinuato; tibiis anticis 4-, mediis 3- 
denticulatis, posticis apice spinosis. Long. 23-24 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Three examples. This species is doubtless very similar to the South-American 
A. ridens and A. subridens, Mars., which are only known to us from description ; but 
the elytra having a long humeral stria (which gives A. connectens the appearance of 
having seven strize) and the fifth and sutural strie being confluent anteriorly are 
sufficient to separate it. 
PLATYSOMA. 
Platysoma, Leach, Zool. Miscell. iii. p. 77 (1817). 
Over 130 species of this genus have been described, the larger proportion of which 
inhabit the tropical parts of the Old World; several, however, are found in North 
America. The two species in the present series are cylindrical in shape. ‘They are 
probably all insectivorous, and are found under the bark of dead or dying trees. Some 
species are attached to pine-trees. Recently a species with a broad yellow band across 
the elytra has been found in Burmah. 
1. Platysoma columellare, sp.n. (Tab. IV. figg. 22, 23.) 
Oblongum, cylindricum, nigrum, nitidum, punctulatum; fronte concava, stria integra, subrecta; pronoto 
grosse et minute punctato, stria laterali valida integra; elytris basi elevatis, punctato-striatis, striis 
validis, integris; propygidio pygidioque ocellato-punctatis; mesosterno marginato, metasternoque grosse 
punctatis; tibiis anticis 4-, posticis 3-denticulatis. Long. 3 millim. 
Hab. Guatemata, San Gerdénimo, San Joaquin, Balheu (Champion). 
The sculpture of this species agrees generally with that of P. cylindroides, but it is 
well marked and much coarser throughout. The punctures are deeper and larger; the 
base of the elytra is elevated, as well as the humeral angles, and the strize are deeper 
and broader and clearly punctate; and the propygidium and pygidium have well- 
defined ocellated punctures. The greatest difference is, however, beneath, in the 
thickly and coarsely punctate meso- and metasternal plates. 
Many examples, all of which were found beneath the bark of pines. 
