1913] Fossil Beetles from Florissant. 361 



Antennas submonjliform, slightly incrassate exteriorly, first joint 

 large, second short, third longer than the fourth, though not much so, 

 fourth to eighth subequal, the remaining three forming a weak club. 

 The eleventh joint is damaged in this specimen, so that the exact form 

 cannot be made out. Prothorax ver}^ short, about twice as broad as 

 long, the form of the sides distorted, one appearing to be straight 

 with the anterior angle distinct while the other is arcuate with the 

 angles nearl}' obliterated. Scutellum absent or not defined. Elytra 

 about one and one-half times as long as broad, apices, in life, probably 

 conjointly rounding through as preserved they are separately sub- 

 cuminate at tip. Legs wanting. Length, 4.30 mm. 



Type in the Museum of Princeton University, obverse and 

 reverse, numbers 6564 and 6535. 



The head is larger than in the modern species of Antheropha- 

 gus that I know and the eyes are of much greater size in the 

 fossil. It may be necessary, some day, to erect a new genus 

 for this insect, but for the present, it seems better to allow 

 it to remain in Anther ophagus. 



Dermestes Linn. 



D. tertiarius Wickh. (Plate II, Figs. 2 and 3). A specimen con- 

 tained in this collection is in much more perfect condition than the 

 type and shows a few additional features. The head is of normal 

 size and punctured a little more strongly than the prothorax. The 

 right antenna is displayed in sufficiently good preservation to show 

 that it is very similar to that of the recent D. marmoratus except that 

 the two joints immediately preceding the club are a trifle broader. 

 The vestiture, punctuation and size are as described for the type. 



On account of the imperfection of the type, which was used 

 for the original figure, new drawings from the Princeton speci- 

 men are given herewith. The generic reference seems to 

 be completely sustained by this example. It carries the 

 Princeton Museum number 6613. 



Attagenus Latr. 



A. aboriginalis n. sp. (Plate II, Fig. 4). Form elongate, sub- 

 elliptical. Head of moderate size, deeply inserted in the prothorax, 

 ininutely sparsely punctulate, eye rather small. Prothorax along 

 middle a little less than one-half the basal width, sides arcuate, dis- 

 similarly so in the specimen, front and hind angles well defined, apical 

 emargination moderately deep, base rather strongly lobed at middle 

 and sinuate each side, disk minutely punctulate or nearly smooth. 

 Scutellum small, triangular. Elytra about three and three-fourths 

 times the length of the prothoracic median line, not striate, punctuation 

 minute, surface with signs of a fine hairy vestiture. Length, 5.00 mm. 



