426 Coleopterological Notices, IV. 



antennae inserted rather beyond apical third, the first funicular joint 

 scarcely as long as the next three, club not as long as the preceding 

 six joints combined. Prothorax nearly four-fifths wider than long, 

 rounded and narrowed in apical half, the apex transversely truncate 

 and about three-fifths as wide as the base. Elytra at base two-fifths 

 wider than the prothorax, more than three times as long, broadly, feebly 

 sinuate at base, the sides straight and parallel in basal three-fifths. 



Length 2.8 mm. ; width 1.4 mm. Arizona squaitliger n. sp. 



Vestiture dense, consisting, on the pronotum, of long slender pointed 

 subrecumbent squamules, on the elytra of similar squamules and with 

 a single series of long robust lanceolate and suberect scales on each 

 interval ; the latter scales very coarsely and deeply strigose. ochreous 

 and piceous-black in color. Head densely hispido-squamose between 

 the eyes, the latter separated by much less than one-half of their own 

 width; beak in the male very short, thick, feebly bent, equal in length 

 to the prothorax ; antennae inserted at apical third, the basal joint of 

 the funicle but slightly longer than the next two, club very long, fusi- 

 form, deeply annulated, longer than the preceding six joints combined. 

 Prothorax scarcely more than one-half wider than long, the sides 

 strongly convergent and nearly straight in apical half, the apex one- 

 half as wide as the base ; punctures rather coarse, very dense ; vesti- 

 ture uniform. Elytra nearly one-half wider than the prothorax, more 

 than three times as long, the sides parallel and nearly straight in basal 

 three-fifths. Length 3.5 mm. ; width 1.75 mm. Southern California. 



liorridula n. sp. 

 Elytral intervals distinctly alternating in width, the wider rather more con- 

 vex and more densely clothed ; body uniformly pale ochreous-testaceous 

 throughout s lielvola Lee. 



In graphica, which is a very isolated species, intermediate in 

 habitus between Thysanocnemis and Tylopterus, the pronotal ves- 

 titure is fulvous except narrowly along the median line and at the 

 sides toward base, where it becomes white, the white lateral area 

 curved inward just behind the middle of the disk, giving the appear- 

 ance of a transverse interrupted band. 



Otidocephalini. 

 OTIDOCEPHALVS Chev. 



Since the last revision of this genus by Dr. Horn (Proc. Am. 

 Phil. Soc, XIII, p. 448), several remarkable forms have been 

 discovered in Florida and our extreme southwestern territories. 

 In the memoir referred to, seven species were recorded as occurring 

 within the United States, and one other was subsequently added 

 by LeConte. Besides 0. perforatus, for which a separate genus 



