NT 
Dury: Coleoptera of Cincinnati. 15 
EUPHORIA. 
E. sepulchralis Fab. KE. inda Linn. 
E. fulgida Fab. 
CREMASTOCHILUS. 
C. knochii Lec. C. variolosus Kby. 
OSMODERMA. 
©. eremicola Knoch. O. scabra Beauv. 
GNORIMUS. 
G. maculosus Anoch. 
TRICHIUS. 
T. piger Fab. T}bibens Fab: 
T. affinis Gory. 
VALGUS. 
V. canaliculatus Fab. V. squamiger Beauv. 
There is no complete monograph of the family SCARAB/AEID AE. 
Horn and Le Conte have excellent papers on many of the 
genera. These papers, which number 38 or more, have been pub- 
lished in Trans. Amer. Ent. Soc. from 1847 to 1880, but most 
of them from 1870 to 1880. In 1887 Dr. Horn revised Lachno- 
sterna Trans. XIV, p. 209-296. Mr. F. Blanchard has a synopsis 
of Canthon in Trans. 1885, v. XII, p. 63. Mr. Blanchard also 
has a synopsis of Geotrupes in Psyche, 1888, v. V, p. 103. The 
latest paper on any N. A. Scarabeid genus is one by Mr. H. C. 
fall on Dichelonycha, Trans. Aug., 1901, vol. XX VII, p. 277, and 
brings the subject down to date. The species of some of the 
genera are quite troublesome to separate. This is noticeably the 
case with Lachnosterna, Diplotaxis, etc. Scarabeide are, many 
of them abundant, some of ‘the species alarmingly so. The 
larve of Lachnosterna, do great damage. The adults fly in 
swarms around electric lights. L. hornu is rare. I have taken it 
at light. JL. albina is another rare species that I have found 
only by beating a certain haw tree (May 24) that stood in a thick 
woods. And though there were many other similar trees around, 
none of them produced any albina. JL. fusca is our most abundant 
species. It is the larvee of Lachnosterna that does such damage to 
grass lands, and lawns, by eating the roots of the grass. Large 
patches are killed in this way and the grass can be rolled up like 
a carpet, leaving the ground stripped bare. They are very dif- 
ficult to combat as the larvee are out of sight in the ground and 
can not easily be reached. The larve or “grub” of Lachnosteria 
are characteristic scarabeean larvee and are figured in many works, 
such as Lugger’s 5th report Entomologist of Minn., Packard 
Bi 
