NORTH AMERICAN COLEOPTERA. 
41 
sternum ])iceous, sliiuing, punctate; legs yellowish testaceous, the coxse and tarsi 
piceous. Length 10.5 mm. ; .42 inch. 
The explamite border of tlie thorax is broader than in fiisciceps, 
but less explanate than \n plnmosa, frontalis, or laticollis. It should 
be associated with fasciceps mu] Sallei from the antennte being shorter 
than half the body. It is the only species in our fauna with a pice- 
ous thorax. 
One specimen, collected in Ramsey County, Minn., and given me 
by ]\Ir. Otto Lugger. 
I*, pltiiuosa Oliv. 
The type of this species, which is now in the British Museum, was 
collected by M. Francillon in Georgia. An examination of it in 
comjiarison with frontalis shows, among other characters, much 
smaller eyes, i.e., the eyes when seen from above are scarcely wider 
than half the distance to the median line of the head, while in fron- 
talis the eyes are fully as wide as the distance to the middle. 
ERG.ITKS Serv. 
E. neomexicanus Casey is an absolute synonym of E. spiculatus 
Lee. The characters given to separate the two are purely individual, 
and are seen in specimens from Vancouver as w'ell as in those from 
New Mexico. 
ACOWA Casey. 
The reference of this genus to the Melolonthine series is a mistake. 
It is plainly a Laparostict, and, like Pleocoma, has the mouth-parts 
of the male (the only sex known) much reduced, and in a manner 
similar to Pleocoma. Its position in our series is after the latter 
genus. 
Polyphylla speciosa Casey, described from the female, is the female 
of clecemlineata Say. 
EEEOnES Esch. 
E. Wiclihaini u. sp.— Elongate, black, shining, elytra with slight velvety 
lustre; antennie a little longer than the head and thorax, the third joint de- 
cidedly longer than the next two; hea<l sparsely punctate ; thorax suhquad rate, 
a little wider than long, slightly narrowed behind, sides slightly arcuate in front, 
oblique posteriorly, anterior angles not everted ; disc moderately convex, sparsely, 
yery finely and indistinctly punctate; elytra elongate oval, attenuate posteriorly, 
disc convex with rows of extremely fine, indistinct punctures; body beneath 
more shining than above, the abdomen transversely wrinkled. Length 27 mm. 
including cauda 33 mm. ; 1.08 inch.; 1.. 32 inch. PI. 1. fig. 12. ■ 
TRANS. AM. ENT. SOC. XVIII. 
(6) 
FEBRUARY, 1891. 
