60 



of time, takes precedence of Rhipicerd) , but possibly may be a 

 Ptyocenis, Its bidentate mandibles exclude it from the families 

 Buprestidce, Elateridce and Cebrionidce, though its external 

 appearance would associate it with the Platers. 



Not being able to refer Schonherr's DendropJiagus to any of 

 the pentamerous families, I have examined closely the Cucu- 

 jidce^ and the following is the result, which proves them to be 

 strictly pentamerous, though in a natural arrangement they are 

 allied to Trogosita^ a tetramerous genus. 



Parandra. First, second and third tarsal joints gradually 

 decreasing in length ; fourth (basillary node, Latr.) nearly glob- 

 ular, but separated from the fifth or claw joint by a transverse 

 line, which is fringed with hairs beneath, as are the apices of 

 the preceding joints ; claw joints longest. 



Cucujus, Uleiota and DendrojjJiagiis. First tarsal joint mi- 

 nute, shorter than either of the preceding ones, but sufficiently 

 distinct ; second, third and fourth, gradually decreasing in 

 length ; fifth as long as the second, or longer. I have another 

 Uleiota, a third larger than duhia, of a iniiform blackish color, 

 the sides of the thorax not denticulated, as in that species, but 

 with two minute tubercles, one just before the middle, and the 

 other near the base ; feet, antennas and palpi rufous. It cannot 

 be a Dendrophagus, because the last joint of the antennae is not 

 much longer than the others. Schonherr says that in the male of 

 Cucujus depressus, and in C. planus, the tarsi are hetcromerous. 

 His note on the Cleridoi (Introd. Ent. Ill, p. 683), which I 

 had forgotten before, should not pass unnoticed. All the Cler- 

 id(B that I have seen are truly pentamerous, though somo, upon 

 a superficial examination, may appear to be tetramerous, or (as 

 Kirby says of Thanasimus formicaYms) hetcromerous. The 

 hind tarsi of T. formiearius have the first joint cut ofl" ob- 

 liquely from above downward. The four anterior tarsi do not 

 have the first joint so obHcpie. In Oleriis the first joint is N'^'ry 

 short, oblique, and nearly concealed by the base of the second. 

 In Enoplium the tarsi are apparently tetramerous in a different 



