338 MEMOIRS ON THE COLEOPTERA 



American Cetoniid; the apex is not sinuate but strongly arcuate 

 and, at the middle of the apex, there is a small vertically reflexed 

 lobe, which is strongly bifid, forming two very approximate spini- 

 form teeth; more laterally at apex there is at each side a very 

 acute vertical spiniform process, not much larger than either tooth 

 of the median pair; just above the point of antennal insertion the 

 edge is vertically elevated, forming another very acute spiniform 

 process. In the male the antennal club is feebly arcuate and dis- 

 tinctly longer than the entire stem, but in the female it is much 

 smaller and is shorter than the stem. Burmeister states of areata, 

 that the male seems to be rarer than the female; I find the exact 

 reverse of this among my material, the male outnumbering the 

 female about three to one on the average. There are three species 

 among my material as follows: 



Pubescence of the male everywhere long, bristling and conspicuous, that 

 of the female much shorter. Body stout, just visibly rhomboidal, 

 black, opaque above, shining beneath, the elytra fulvous, with a 

 very large median area, more or less comminuted except near the 

 suture, sides and apex, somewhat irregularly black, the black areas 

 sometimes in part extending to the apex or retracted to half the elytral 

 length and width; head strongly, densely rugose, densely pubescent 

 on the vertex, the prothorax a third wider than long, somewhat 

 narrower at base than just behind the middle, the sides rounded, 

 the base strongly, evenly rounded medially; surface very densely 

 punctured and with long, dense, very conspicuous yellowish-cinereous 

 pubescence (cf ), or with the punctures much coarser, distinctly 

 separated and bearing much shorter, sparser and inconspicuous hairs 

 (9); scutellum small, very acute, smooth, opaque except at base; 

 elytra opaque, only a little longer than wide, the costse obsolete or 

 very feeble, the punctures rathersmall and shallow but distinct, serial, 

 larger, deeper, dense and confused or producing a rugose surface on the 

 flanks; pygidium feebly, closely rugulose, more convex but not umbo- 

 nate in the male, with long and fine (d 71 ) or very short and sparser 

 (9) pubescence and having a large tomentose area at each side; 

 anterior tibial teeth long, acute and triangular in both sexes, equi- 

 distant or with the lower two a little less separated; hind tarsi com- 

 pressed, short and rather compact in the female. Length (cf 9 ) 

 10.7-11.5 mm.; width 6.6-7.0 mm. Kansas (Manhattan). A large 

 series received some time ago from Mr. Knaus. . . .pilipennis Kr. 



Pubescence subequal in the sexes and, in the male, much shorter and less 

 conspicuous than in the preceding 2 



2 Teeth of the anterior tibiae rather short and triangular; pronotum 

 as in the preceding, never having a lateral tomentose area. Body 

 narrower and more oblong than in pilipennis, the clypeal spines 

 more equidistant among themselves; prothorax nearly similar in 



