138 THK CANADIAN KNTf»MnU>OIKT. 



the sulci deep and moderately coarse, the large scales rather scattered, 

 but, in more perfect examples, fornung a large rounded blotch very 

 slightly before the middle. Length, i. 0-1.2 nmi.; width, 0.4-0.55 

 mm. Arizona and California (Yuma) setoius Lee. 



Elytra about one-half longer than wide, the i>ale erect setae still more 

 numerous and very conspicuous, long, flattened, sijuamiform, gradu- 

 ally very sharply pointed or lanceolate, the sulci more concealed by 

 the large, more or less pale scales, which have no very defmite 

 pattern of arrangement ; pronotal punctures moderately coarse, dense; 

 large scales of the femora very broad in form ; eyes moderately 

 coarsely faceted. Length, 1.3 mm.; width, 0.6 mm. Arizona 

 (Turson) echinus n. sp. 



Elytra almost similar in form, though not (juite so elongate, the seta; long, 

 white, very numerous and conspicuous, but difleriiig very markedly 

 from those of echinus in being more slender, parallel-sided, truncate 

 at their apices and with their side-margins more strongly micro- 

 serrulate, the large pale scales sparser, irregularly more numerous 

 suturally, tending to form a more rounded aggregation submedially 

 as in many other allied species ; pronotal punctures very coarse, 

 much larger even than in echinus, the eyes more coarsely faceted and 

 the large scales of the femora narrower and more elongate-oval. 

 Length. 1.25 mm.; width, 0.5 mm. Arizona ('I'u<;son).//^j/r/.v n. sp, 



7 — Upper surface with large, irregularly distributed pale scales as in the 

 three preceding 8 



Upper surface without an admixture of large pale scales 10 



8 — Pronotal punctures rather large and deep but less crowded than usual, 

 |)reserving their circular outline ; elytral sulci very coarse, deq) and 

 consj)icuous. Hody somewhat as in su/>/(isciatus but shorter, the pale 

 scales of the elytra less numerous, narrower and more elongate, more 

 closely aggregated near the humeri and umboncs and in a large 

 annulus, which is more evidently before the middle than the large 

 spot in sub/ii$cintus, the erect setie long and rather slender, not so 

 short and stout as in that species ; humeri well exposed at base. 

 Length, 1.4-1.5 mm.; width, 0.6-0.65 mm. .\ti/ona (near lienson), 

 Dunn ... verni/is n. sp. 



Pronotal punctures coarse, more crowded and polygonally distorted than 

 in verni/is, the elytral sulci much finer and shallower 9 



