NORTH AMERICAN COLEOPTERA. 39 



n. inoutaiius n. sp. — Oblong, dark piceous; antemife and legs rufous. 

 Above and underside of thorax densely covered with grayish-brown scales; beak 

 rather slender, a trifle longer than the prothorax ; wider, but not flattened 

 toward the base ; obscurely tricarinate ; separated from the front by a curved 

 impression. Scrobes, supraorbital ridge and sulcus, as in alternntiis. Head 

 transverse, convex and like the beak, densely scaly. Thorax transveree, nearly 

 twice as wide as long; wider at base than apex. Sides rather strongly rounded, 

 widest a little behind the middle; feebly constricted at tip and transversely 

 impressed behind the anterior margin. Surface finely granulate, completely 

 concealed by the scaly vestiture ; a median, straight and a bifeinuous vitta each 

 side of paler scales. Elytra scarcely one-fourth wider than the thorax ; striae 

 strongly impressed with distant punctures, latter concealed by the scales; inter- 

 stices subconvex, of equal width, each with a row of short, stout, suberect setse. 

 Scutellum and humeral spots white ; surface, especially sides, mottled with paler 

 spots. Abdomen with a few scattered scales, densely punctate, each punctui-e 

 bearing a short seta. Legs moderately stout, femora with a ring of paler scales 

 near the apex ; tibiae moderately stout, scarcely compressed ; tarsi as in alternatus, 

 pubescence shorter. Length 3.5 mm. . .14 inch. 



Z . Last ventral not impressed. 



9 . Last ventral with a small fovea near the apex. 



Slightly variable in appearance, accordingly as the darker or paler 

 scales prevail. 



Hub. — Illinois, Kansas, Nevada, Dakota (collection of H. Ulke), 

 Montana (Dr. Horn). 



JI. iiiterstitialis n. sp. — Very similar in form and size to the preceding, 

 and easily confounded with it. Dark piceous, densely covered with scales of the 

 same color; beak stout, flattened and much broader at base than at apex ; rather 

 strongly declivous and compressed from a level with the insertion of the an ■ 

 tennse ; the declivous portion with a strongly marked, median carina, becoming 

 more or less evanescent before reaching the base ; a lateral ridge beginning at 

 the insertion of the antennae, but not attaining the base, very evident when 

 viewed laterally, scarcely so, when seen from above; a vague, transverse impres- 

 sion at the base : surface densely scaly ; erect, claviform, hairs very conspicuous. 

 Antemife stout, scape shorter, inserted at a distance from the buccal opening; 

 scrobes, supraorbital ridge and sulcus as in the two preceding species. Head as 

 in montanus. Thorax .strongly transverse, a trifle less than twice as wide as long, 

 strongly rounded at the sides and feel)ly constricted at tip, base broadly rounded ; 

 surface strongly punctured, in somewhat concentric rows, scales rather large, 

 corresponding to the punctures and interspersed as usual with stout, erect hairs; 

 vittate as in montanus. Elytra slightly wider than the thorax, broadly emar- 

 ginate at base; humeri rounded, sides very slightly, but distinctly narrowed 

 behind the humeri and rather rapidly rounded to apex ; striae strongly impressed, 

 punctures large, distant, not concealed by the scales ; interstices alternately wider 

 and more convex, each with a row of moderately long and stout seta^ ; humeral 

 spot and scutellum white; a stripe of paler scales commencing at the humerus 

 and becoming evanescent beyond the middle. Under surface as in the preceding 



