110 HETEROMERA. 
b. Epistoma not margined in the male, similar in both sexes. 
5. Nuptis validus. (Tab. V. fig. 22, ¢.) 
Black, shining. Head feebly impressed or flattened between the eyes, shallowly, distantly, and rather finely 
punctured ; epistoma broad, indistinctly defined posteriorly, similar in both sexes; prothorax transverse, 
convex, widest a little before the middle, the sides feebly rounded, very finely, shallowly, and diffusely 
punctured, sometimes almost smooth, with an indistinct central line; elytra with regular rows of deep 
coarse impressions, the impressions a little finer towards the suture ; anterior tibie in the male with a sharp 
tooth on the inner side near the middle and a broad triangular tooth just before the apex ; posterior tibice 
in the male slightly swollen (or bluntly toothed) a little before the middle ; prosternum smooth, horizontal, 
the apex produced and rounded; mesosternum raised obliquely on each side in front, concave within. 
Length 18-21 millim. (¢ 2.) 
Hab. Mexico (coll. F. Bates), Cordova (Sallé), Jalapa (Hoge); GuaTeMaLa, San 
Gerdénimo (Champion). 
Labelled Nyctobates validus, Chevr., in the Sallé collection. 
6. Nuptis tenebrosus. (Tab. V. fig. 23, ¢.) 
Black, shining. Head with some very coarse scattered punctures between the eyes, the epistoma not distinctly 
separate from the front, and similar in both sexes ; prothorax widest a little before the middle, strongly 
transverse, moderately convex, the sides distinctly margined and slightly narrowed and sinuate towards 
the base, very finely, shallowly, and sparingly punctured, the disc in some specimens transversely im- 
pressed a little before the base ; elytra indistinctly striate, with rows of coarse deep impressions, inter- 
stices smooth ; anterior tibia in the male with a sharp triangular tooth on the inner side near the middle ; 
prosternum horizontal, the apex produced and sublanciform ; mesosternum raised obliquely on each 
side in front, strongly concave within. 
Length 17-184 millim. (¢ 9.) 
Hab. Mexico, Santecomapan (Sallé) ; Guatemata, Cubilguitz, Senahu, and San Juan 
in Vera Paz (Champion). 
Allied to WV. validus, but smaller, the head very coarsely punctured between the eyes, 
the posterior tibize not swollen in the middle in the male. 
7. Nuptis corticalis. 
Black, shining. Head and prothorax as in N. tenebrosus; elytra indistinctly striate, with rows of not very 
coarse or fine longish impressions, the impressions somewhat distantly placed and scarcely coarser towards 
the sides, interstices smooth ; anterior tibie in the male with a sharp triangular tooth on the inner side near: 
the middle ; prosternum horizontal, the apex produced and rounded ; mesosternum raised obliquely on 
each side in front, concave within. 
Length 16-18 millim. (¢ 9.) 
Hab. Nicaracua, Chontales (Belt, Janson) ; Panama, Volcan de Chiriqui ( Champion). 
Allied to WV. tenebrosus ; the elytra more evidently striate, more finely and equally 
punctured, the punctures scarcely coarser towards the sides; the sides of the meso- 
sternum less raised, &c. 
Rather common in Chiriqui beneath the loose bark of old fallen trees in the forests. 
