32 
COLEOPTERA. 
There is an undescribed kind of Phyllopliaga^ or leaf-eater, 
called, in my Catalogue of the Insects of Massachusetts,* fra- 
terna^ because it is nearly akin to the quercina^ in general 
appearance. It differs from the latter, however, in being 
smaller, and more slender; the punctures on its thorax and 
win^-covers are not so distinct, and the three elevated lines 
on the latter are hardlv visible. It measures thirteen 
«' 
twentieths of an inch in length. This beetle may be seen 
in the latter part of June and the beginning of July. Its 
habits are similar to those of the more abundant i\Iay-beetle 
or dor bucr. 
Fig. 11. 
Another common Phyllophaga has been described by Knoch 
and Say, under the name of liirticida (Fig. 
11), meanino; a little hairv. It is of a bav- 
brown color, the punctures on the thorax 
are iarorer and more distinct than in the 
qiiercina^ and on each wing-cover are three 
longitudinal rows of short, yellowish hairs. 
It measures about seven tenths of an inch 
in length. Its time of appearance is in 
June and July- 
«/ 
In some parts of ^Massachusetts the Phyl¬ 
lophaga Georgicana (Fig. 12) of Gyllenhal, 
or Georgian leaf-eater, takes the place of the 
quercina. It is extremely common, during 
iMay and June, in Cambridge, where the 
other species is rarely seen. It is of a bay- 
brown color, entirely covered on the upper 
side with very short, yellowish gray hail’s, 
and measures seven tenths of an inch, or 
more, in length. 
Fig 12. 
* In order to save unnecessary repetitions, it may be Tvell to state, that the 
Catalogue above named, to which frequent reference will be made in the course 
of this treatise, was drawn up by me, and was published in Professor Hitchcock’s 
Report on the Geology, ^lineralogy, Botany, and Zoology of Massachusetts, and 
that two editions of it appeared with the Report, the first in 1833, and the sec¬ 
ond, with numerous additions, in 1835. 
