12 OTIORHY^fCHID^. [Horn. 



iiig broader as it passes jiosteriorly, where it is bounded in front and behind 

 by a line of darker scales. I have two specimens before me of an entirely 

 uniform pale-brow^n color. 

 Occurs in Canada and New York. 



G. incomptus, n. sp.* 



This species so closely resembles melanothrix in form, size and color 

 that it is unnecessary to add any description. It differs only in the 

 characters given in the short table, so that if the description of melaiiothrix 

 be repeated with those changes only, it will equally apply to this one. 



Occurs from San Francisco to Vancouver. 



ARAGNOMUS n. g. 



Rostrum shorter than the head, broader than long, flattened above, a 

 feeble transverse impression at base, tip feebly emarginate and with a 

 smooth crescentic space limited behind by a curved line. Scrobes sub- 

 lateral, not convergent above, cavernous, nearly attaining the ej^es. An- 

 tenmie scaly, moderate ; scape slightl}^ arcuate, barelj^ attaining tlie margin 

 of tlie thorax ; fiinicle 7-jointed, nearly one-tliird longer than the scape, 

 first joint nearly equal to the two following, joints 2-7 obconical, gradually 

 decreasing in length ; club oval. Eyes rather small, round, not prominent. 

 Thorax cylindrical, sides feebly arcuate at middle only. Scutellum invisi- 

 ble. Elytra oval. Intercoxal process broad, truncate. Second segment 

 of abdomen as long as the two following, separated from the first by an 

 arcuate suture. Anterior tibiai feebly mucronate. Claws connate. 



This insect recalls in smaller size Pavaptochus sellatus with less broad 

 elytra. The eyes are more distant from the tlioracic margin than is seen 

 in any of the other genera of the group, and the head and rostrum rather 

 large when compared with the thorax. From Seidlitz's table tliis genus 

 appears to occupy a doubtful position. The frontal impression is sufficiently 

 distinct to ally it to Sciobius, etc., but the structui'e of the abdomen will 

 not warrant such position. The scrobes are moreover in such position that 

 it is impossible to say whether they should be called superior or lateral. 

 The}' are by no means lateral in the manner of TniGhypMoius-AniX Licheno- 

 phagus. 



A. grisevis, n. sp. 



Form oval, robust, surface densely covered with cinereous scales, with 

 sparsely placed, erect, black setae, longer on the elytra. Head and ros- 

 trum longer than the thorax, a slight frontal line, surface sparsely and 

 deeply punctured, densely scaly, and with short erect hairs. Thorax 

 slightly broader than long, cylindrical, truncate at apex and base, sides 

 suddenly arcuate at middle, disc moderately convex, coarsely and regularly 



* No description of tliis species has until now appeared. I adopt tlie 

 specific name by whicli it is known in our cabinets. Mention of the species 

 first occurs in a catalogue of insects collected on the survej' of the Pacif. li. R, 

 where it is called Trachyplccus, See Pacif. R. R. Rep., App. 1, p. 21. 



