FALL AND COCKERELL. 



269 



A brief examination shows that our species of Aealles are divisi- 

 ble into two sections, in one of which the eyes are widely separated 

 and entirely lateral, while in the other they encroach upon the front, 

 their distance apart being less than the width of the beak. More or 

 less completely correlated with this difference in ocular structure, is 

 the development of the erect bristles; these being entirely or virtu- 

 ally absent in the species with more approximate eyes, and nearly 

 as constantly present in those species having the eyes smaller and 

 widely separated. Hubbardi is a notable exception in the latter 

 group. 



Ceiitorhynchus nolaliilus n. sp. — Oval, piceous; knees, tibiae and 

 tarsi dull rufous; clothed rather thinly above with short appressed or subap- 

 pressed brownish scale-like hairs with sparsely scattered whitish scales, the latter 

 condensed in the median prothoracic channel and in a large snbquadrate scutel- 

 lar spot. Beak moderately punctate and striate basally, more sparsely punctate 

 apically. Antennse ( 9 ) inserted just behind the middle of the beak, funicle 

 7-jointed, first two joints subequal and elongate. Head densely punctate and 

 rather strongly carinate, front feebly concave. Prothorax transverse, sides 

 rather strongly rounded posteriorly and very slightly convergent; strongly nar- 

 rowed and constricted apically, the apical margin elevated ; dorsal channel deep, 

 lateral tubercles small ; punctuation dense and rather coarse, each puncture 

 bearing a narrow appressed brown scale-like hair. The median channel bears 

 numerous pale brown scales and there is an imperfect line of similar scales just 

 within the lateral tubercles. Elytra moderately elongate, deeply striate, inter- 

 vals nearly flat and rugose, each with two lines of brown hair-like scales, and 

 with very large rotundate whitish scales, scattered singly over the surface; scu- 

 tellar spot involving the first and second interspaces, the scales similar in color 

 to, but less broad than the isolated scales of the elytra. Legs and lower surface 

 clothed with intermixed scales and stout hairs for the most part pale in color. 

 Femora with a tuft of scales in the position of the usual tooth, which is probably 

 present though concealed by them. Claws with a moderate tooth. Length 2.8 

 mm. ; width 1.6 mm. 



Pecos; June. A single specimen sent by Prof. Cockerell. 



This species appears to be closely related to rudis, but seems 

 different in several details. Neither LeConte nor Deitz specifically 

 mention the very large rounded scales of the elytra in rudis and 

 they could hardly have failed to do so if present. 



Ceiitortaynchus solifariiis n. sp. — Oval, piceous, last two joints of 

 tarsi pale; upper surface moderately densely clothed with narrow or piliform 

 scales, dark brown in great part, interspersed with similar whitish scales which 

 are sparse and inconspicuous on the disk, but become numerous in the median 

 groove and at the sides of the prothorax, and toward the lateral and apical mar- 

 gins of the elytra, where they predominate. There is a narrow scutellar spot of 

 overlapping pure white scales, occupying the sutural interspaces for somewhat 



TBANS. AM. ENT. SOC. XXXIII. JULY. 1907. 



