MALACODERMATA. 349 
Cathorama seminulum (p. 207). 
To the localities given, add:—Panama, Pefia Blanca 3000 to 4000 feet (Champion). 
Found on flowers on open savannas, commonly. 
MIROSTERNUS (to follow the genus Cathorama, p. 208). 
Mirosternus, Sharp, Trans. Ent. Soc. Lond. 1881, p. 526. 
A genus founded by Dr. Sharp for several species of “ Dorcatomini” inhabiting the 
Hawaiian Islands. The species he describes being only represented by single, or at 
the most two or three specimens each, I have not been able to examine a dissection, 
and the two insects now referred to the genus being similarly represented, their location 
here must be considered problematical, yet externally there does not seem to be any- 
thing to separate them. The antenne are eleven-jointed, the eyes not cut out, the 
mesosternum depressed, and the prosternum without processes. 
1. Mirosternus brunneivillis. (Tab. XIII. fig. 18.) 
Oblongus, niger; elytris prothoracisque disco minus dense, lateribus densius, brunneo-pubescentibus ; antennis 
pedibusque rufo-fuscis, his clava rufula. Long. 3 millim. 
Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 
Brownish black, a little shining, clothed with a brownish close pubescence, which is 
disposed rather in lines on the elytra, and becomes denser on the sides of the thorax, 
especially on the inflexed portion. The thorax narrows considerably in front, its length 
is rather less than its width at the base. Punctuation is not visible. The antenne 
have the three last joints elongate, not angular, but evenly rounded on their inner edge, 
and nearly equal in length and breadth to each other. 
This insect may perhaps be regarded as forming a link between the genus Thaptor 
and the typical “Dorcatomini.” There is, however, no room for doubt that large 
numbers of species exist, and it would be foolish to attempt to systematize or generalize 
upon the modifications at present known to us. Thus I do not feel sure yet that the 
mesosternal cavity is always used for the reception of the antennz; those species I 
have examined have the antenne folded under the head, and lying in front of the 
prosternum. 
2. Mirosternus substriatus. 
Oblongus, latior, nigro-piceus ; elytris subplumbeis, striis duabus submarginalibus fortiter impressis, tertia 
(interiore) obsoleta pone medium desinente, disco levi, seriebus punctorum circa septem, perobsoletis egre 
distinctis. Long. 4 millim. 
Hab. Panama, Boquete 2500 feet (Champion). 
