42 Mr. G. C. Champion's Revision of the Mexican 



Discodon planicolle, Schaeff., Journ. N. York Ent. Soc. 



xvi, p. 61. 

 TelepJiorus platyderus, Gemm., Col. Hefte, vi. p. 120 (1870). 

 Discodon vitticolle, var. ?, Gorh., Biol. Centr.-Am., Coleopt, 



iii, 2, p. 286. 



Narrow {(^), broader ($), moderately elongate, rather shining, 

 fusco-pubescent, nigro-piceous or black, the head on each side in 

 front, the base of the mandibles, and the prothorax (a broad median 

 vitta excepted), testaceous or straw-yellow, the humeri usually (to a 

 greater or less extent), and sometimes the knees also, testaceous 

 or flavous. Antennae long, slender, and densely pilose in (^, shorter 

 and sparsely pilose in $. Eyes rather large in (J, smaller in $. 

 Prothorax (cj) transverse, the sides notched at tlie middle, the hind 

 angles rectangular ; in ? broader, with the sides simply sinuate and 

 the hind angles obtuse. Elytra moderately long, a little wider than 

 the prothorax. Inner claw of anterior tarsi broadly lobed, and outer 

 claw of the other tarsi cleft at tip, in o . 



(^. Eighth ventral segment oval, carinate ; a pair of stout hooks 

 projecting from the internal sac. 



Length (excl. head) 6|-7|, breadth 2^-31- mm. (S ?.) 



Hab. North America, New Mexico, Texas ; Mexico, 

 Villa Lerdo in Durango, Monterey in Nuevo Leon {Hoge), 

 Monclova and Parras in Coahuila {Dr. Palmer). 



This is one of the numerous forms allied to D. plicatum, 

 Gorh., from which it is separable by its smaller size and less 

 elongate shape (this being especially noticeable in the 

 females), and by closely pilose antennae of the male. D. 

 filicorne, from Durango, has similarly hirsute, but much 

 longer, antennae in the same sex. Mr. Wickham has 

 recently sent me a pair, and Mr. Fall a female, of the present 

 species from Texas or New Mexico. 



31. Discodon filicorne, n. sp. 



Narrow (^), broader ($), dull, finely cinereo -pubescent ; black, 

 the anterior portion of the head wholly or in great part, the base 

 of the mandibles, and the prothorax (a broad, anteriorly dilated 

 median vitta excepted) flavous. Antennae (^) slender, filiform, 

 longer than the entire body, densely clothed with projecting hairs ; 

 {$) much shorter and not so slender, sparsely pilose. Eyes moder- 

 ately large and somewhat prominent in cJ, smaller in $. Prothorax 

 transversely subquadrate and angularly notched at the sides a 

 little behind the middle in (J, broader, narrowing forwards, and with 



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