380 Memoirs on the Coleoptera 



vemicatus is quite different. There is also a species of true Euda- 

 marns, occurring in Central America and recorded by Mr. Champion 

 under the name corvinus. 



Pseudomadarus n. gen. 



In some features this genus may be considered an intermediate 

 between Madarus and Conoproctus, resembling the latter somewhat 

 in form of body, quadrimaculate elytra and radical sexual differences 

 in the beak, but it differs not only in the post-apical position of 

 the male antennae, but in the entire form of the pygidium, this part 

 being very much less oblique in the male and more similar in form 

 in the male and female. The body is rather large in size, elongate- 

 suboval, sometimes feebly rhombic, the integuments very smooth, 

 shining and almost sculptureless, the color generally black, the 

 elytra each always with two oblique red spots, and with the legs 

 very much longer than in Madarus but similar to those of Cono- 

 proctus. The elytral sculpture differs greatly from that of Euda- 

 marus, the apical part being strongly exarate as in Madarus, this 

 feature being much more accentuated than in Conoproctus. The 

 beak (d") is very long, nearly straight and feebly bent at the point 

 of antennal insertion, but ( 9 ) is much shorter, rather strongly, 

 evenly arcuate and gradually more tapering, also smooth beneath 

 and without the inferior fringe of the male. The mandibles are 

 feebly bifid and slightly decussate. Antennae at apical third or 

 fourth (cf), or medial (9), long and slender, with very long and 

 abruptly defined, deep scrobes, the scape very long, especially in 

 the male, the first funicular joint as long as the next three, the 

 second also moderately elongate, the outer joints scarcely dilated, 

 not compact and but little wider than long, and the club subcylin- 

 dric-oval and usually rather longer than the preceding five joints. 

 The prosternum is even, long and upwardly sloping before the coxae 

 and, in the male, often has a feebly obtuse tubercle near each coxa; 

 the posterior lobe is broadly bilobed at tip and the coxae are sepa- 

 rated by somewhat more than their width. The femora are not 

 dilated and are mutic, the tibiae long and straight and the tarsi long 

 and slender, with long and narrow, only feebly diverging lobes of 

 the third joint, the claws strong and widely diverging. The pro- 

 thorax is very gradually tubulate, the basal lobe very prominent 

 and rounded, the scutellum close, transversely lunate, the elytral 

 striae almost obsolete and the pygidium subvertical and transversely 

 oval in both sexes. The species are rather numerous, those now 

 known to me being as follows: 



Antennal club (cf 9) about as long as the preceding five or six joints; sides of 

 the prothorax distinctly arcuate, generally more so posteriorly. [Pseudo- 

 madarus in sp. ] 2 



