266 REVISION OF THE TKN KliKK >M [> i OP AMERICA, 



TRIBE IV — CNEMODINI. 



M < 1 1 1 1 1 n i large, ipletely filling the gular space, lateral processes of gula triangular, 



applied against sides of mentum. Front with a prominent middle lobe completelj con- 

 cealing the labrurn. Prosternum nol produced. Mesosternum short, not prominent be- 

 tween the coxae; coxa; entirely enclosed bj sterna, trochantin visible. Metasternum long, 

 (bodj winged) parapleural parallel, [ntercoxal process of abdomen acute. Tarsi with 

 two rows ofshorl spine-like hairs. Legs slender, anterior with the apical angle produced 

 and with a single short -pur. Antenna' 11-jointed, last joint oval acuminate. 



CNEMODUS, Horn. 



Mentum large, transverse, concealing maxillae and ligula, hexagonal, rounded in front. 

 Labrum concealed. Mandibles deeply emarginate and with an acute tooth at tip. and 

 deeplj grooved on their outer lace. Maxillary palpi short, first joint obconical and larger, 

 second shortest, las! oval. Front with a prominent middle lobe, with a reflexed margin 

 and emarginate, sides of front broadly rounded; head short, broader than long, eyes 

 prominent and coarsely granulated. Antennae equalling half the length of body, rather 

 slender, slightly thicker at tip. glabrous; joints nearly equal in length, except eleventh, 

 which is shorter, oval and acuminate at tip; joints thickened at distal extremity. Thorax 

 slightly transverse, somewhat narrower than the elytra. Scutellum triangular, longer 

 than wide. Epipleurae extending to the tips of elytra, narrow, anteriorly badly defined. 

 Legs slender, tarsi long, slender, exceeding in length their respective tibiae; joints slender, 

 cylindrical, last joint longer. Anterior tibiae flattened, external apical angle prolonged, 

 and with an acute tooth at middle of external edge, and with a single spur. 



With the above characters 1 define a tribe and genus having nothing known to me, 

 allied to them. In form the unique species resembles Hypselops, Sol., and it is possible 

 thai this South American genus should he associated with the one now under considera- 

 tion. So many curious characters are found blended in this insect, that it is really diffi- 

 cult t<> tell to which most prominence should be given. The legs bear a striking resem- 

 blance to those of some of our Lamellicornia, as Macrodactylus or Dichelonycha. 



('. testae e. us, yellowish testaceous, head obtuse, as long as broad, moderately coarsely punctured between and 

 in front of the eyes. Thorax wider than long, convex, sides broadly rounded, anteriorly feebly emarginate, angles 

 obtuse, posteriorly truncate angles distinct, disc nearlj smooth, moderately shining, more coarsely punctured toward 

 the lateral margins. Marginal line scarcely distinct, pronotum almost continuous with the Bank. Elytra elongate, 

 subparaUel, twice as long a- head ami thorax, surface shining, and denselj aciculately punctured, humeral angles dis- 

 tinct, obtuse, Beneath faintly and sparsely punctured ami sparsely clothed with yellowish hairs. Length .:;■.'. 

 w idth . 1 1 inch, 



The whole surface of the body appears to have been, when recent, covered with very 

 short, sparsely placed, sub-ereel hairs. Those on the under surface of the body are short, 



