NOKJ'H AMKRIOAN COLEOPTKRA. 165 



Var. a. — Iiulistiiictly iiioIiIlmI with spots of juile scales, a pale 

 hasal line on the third interspace quite distinct. 



Var. h. — General ap|)earance more gi'ay, humeral and short l)asal 

 line on the thir^l and longer line on the fifth interspaces pale, surface 

 more distinctly mottled, punctures of prothorax a little smaller and 

 less dense. This variety has been described by Casey as flavicans 

 Lee, a sj)ecimen of which in Mr. Jiilich's collection and labeled in 

 Capt. Casey's own liandwriting, is before me. To this variety I also 

 refer three sj)ecimens in Mr. Dike's collection from Kansas, differing 

 by being a little smaller in size and the beak of the male a little 

 longer than head and protiiorax. 



Var. c. — Smaller than the typical form, scales entirely grayish 

 white, interstitial setse short, but more evident. The pale grayish 

 scales give this variety a quite di.-^tiiict appearance; it is repi'esented 

 by a single specimen in ^fr. Ulke's collection from Pennsylvania. 



Var. d. — Anotlier small variety, has the j)rothorax less densely 

 punctured and somewhat shining, the punctures not entirely con- 

 cealed by the scales; the prosternum, also, is rather dee{)ly emar- 

 ginate and very short in front of the co.xfe ; the scales are pale 

 brown, mottled with ill-defined, pale spots. Two specimens. Dis- 

 trict of Columbia, collection of Ulke. 



The last two may prove to be distinct species. 



S. laiiii$;iiiONiis n. sp. — Also closely related to corniculattis, from which it 

 ditlers by its siuallcr size, the prothorax more evidently wider than long, less 

 coarsely and less conflnentlj' punctured, the elytra less than one-third wider at 

 the base than the prothorax ; the scales are rather large, broadly oval, of a dirty 

 gray color and intermixed with very conspicuous, long, hair-like setje, giving 

 the insect a quite hirsute appearance. Length 2.0 mm. ; 0.08 inch. 



Hab. — District of Columbia, Pennsylvania. 



Two specimens. Dr. Horn's and my own collection. Dr. Horn's 

 specimen bears the label " eorniculatuts.' ' 



S. spiircus Casey. — Elongate, piceous, legs paler, very densely scaly, scales 

 large, oval, yellowish giay on the underside, pale brown above, lateral margin 

 and median vitta of prothorax and a few small spots on the elytra of white 

 scales. Beak in the niale stout, distinctly curved, a little longer than head and 

 prothorax, taporijig from base to apex, punctured, striate and squamose almost 

 to the ape.x, scales intermixed with erect bristles, former forming a prominent 

 basal crest, incision deep, in the female long, slender and shining, scrobes ob- 

 lique. Antennae very slender, inserted two-fifths from the apex ( 'J, ), or at the 

 middle ( 9 ), first joint of funicle rather slender, second one-half longer than 

 the third, outer joints scarcely wider. Head with a feeble lustre, finely aluta- 

 ceous. front punctulate, scaly. Prothorax scarcely wider than long, narrowed 



TRANS. AM. ENT. SOC. XXI. JUNE, 1894. 



