38 OTIORHYNCHID^]. 



[Horn. 



M. innocuus, n. sp. 



Form oblong oval, moderately densely scaly. Head and rostrum as long 

 as the thorax, densely scaly and with very short erect hairs. Rostrum 

 enmrginate at tip and with small triangular depressed space ; slightly 

 swollen in front of the eyes. Occiput with transverse impression. Thorax 

 broader than long, sides moderately arcuate, disc moderately convex, sur- 

 face rugoso -punctate, sparsely scaly and with few short erect hairs. Elytra 

 oblong oval, with rows of coarse shallow punctures closely placed, in- 

 tervals feebly convex and at base feebly alternating ; surface densely scaly 

 and with indument, intervals with a row of very indistinct erect scale-like 

 hairs. Body beneath densely scaly. Legs densely scaly and with sparsely 

 placed short erect set*. Length .14 inch ; 3.5 mm.* 



The scales are of a greyish or cinereous color, those of the thorax 

 darker. 



One specimen, Colorado. 



M. languidus, n. sp. 



Form elongate oval, surface densely covered with cinereous scales. Head 

 and rostrum as long as the thorax. Head transversely impressed behind 

 the eyes. Rostrum feebly emarginate at tip and with slight oval smooth 

 space, surface densely scaly and with few short scale-like hairs. Thorax 

 slightly longer than wide cylindrical, base narrower than the apex, sides 

 nearly straight, apex and base truncate, disc regularly convex, coarsely, 

 deeply and densely punctured, and with a slight median line. Elytra 

 oblong oval, disc obsoletely striate, striae with rather large, closely placed 

 punctures, intervals slightly convex, densely scaly and each with a single 

 row of very short scale like hairs. Body beneath and legs as in the pre- 

 ceding species. Length .14 inch ; 3.5 mm. 



Two specimens, Arizona and Fort Tejon, Cal. 



In both species the deciduous piece has left a very inconspicuous scar, 

 transversely oval in form and not prominent as in several of the following 

 groups. I have not seen specimens with the pieces remaining. The men- 

 turn fills completely the gular emargination which is nearly semicircular in 

 form. The gense are notched opposite the bases of the mandibles. The 

 distance between the posterior coxae is equal to the length of the first two 

 abdominal segments, and the coxa3 are not larger than those of the middle 

 pair. 



Group II. Epicaerl. 



The species composing this group are more or less pyriform, the body 

 above and beneath densely scaly, the elytra of a pale-brownish or luteous 

 color with the tip and two sinuous bands much paler. The rostrum is 

 rather stout, usually longer than the head, the scrobes deep, well defined, 



* The measurements here given as well as all to follow in the present paper, 

 are taken from the apical thoracic margin to the tip of the elytra, as this is 

 more certain and invariable than if the measurements are taken from the tip 

 of the beak, which varies in length. 



