WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 469 
differs in the proportions of the antennal joints, which, in Ipochus, 
decrease rapidly in length from the third to the fifth. The legs of 
Protipochus are rather short, the thighs strongly clavate, but owing 
to their showing through the specimen they are not represented in the 
gross figure. The detail will give an idea of the appearance of the 
middle leg. 
I take pleasure in giving this species the name of Dr. Edwin C. 
Van Dyke of San Francisco. 
LEPTOSTYLUS SCUDDERI, sp. nov. 
Plate 10, fig. 5. 
Form moderately elongate. Head with prominent jaws. Antennae 
slender, about one and three fifths times the length of the body, first 
joint long, subcylindrical, second short, third barely longer than the 
first, fourth subequal to the third, fifth, and sixth a little shorter, the 
remainder not distinctly separable. There is no visible antennal vesti- 
ture. Prothorax nearly twice as broad as long, sides arcuate with no 
defined spine nor tubercle. Elytra long, four and a half times the 
prothoracic length, strongly tapering from about the middle to the 
apices which are moderately sharply pointed but unarmed. Legs 
lacking except one which probably belongs te the middle pair; this 
is of moderate length and stoutness, tarsal joints ill defined. Length, 
from front of head to tip of abdcmen, 11.35 mm. 
Described from a single specimen. 
Type.— No. 2,598 M. C. Z. Florissant, Col. (No. 929 S. H. 
Scudder Coll.). 
The facies of this insect is entirely that of a Leptostylus, with which 
renus it agrees in the antennal and thoracic structures. The long 
mtennae are in accord with those of the recent LD. biustus and L. 
erraecolor. 'The-coloration seems to have been a mottling, arranged 
n irregular transverse bands, the best marked of which are in the form 
f two rather broad postmedian fasciae. It will be noted that the tho- 
acie sides, as preserved, are not symmetrical, the left one showing about 
he same shape as in L. biustus, while the other is simply rounded. 
PROTONCIDERES PRIMUS Wickham. 
A specimen of a lamiide in this collection, No. 2,599 M. C. Z. (No. 
3,594 S. H. Scudder Coll.), differs from my type of P. primus in just 
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