HORTICULTURAL JOURNAL. 113 
eyes extremely prominent ; elytra tubercled." Emmons gives (p. 53, 
" Thorax truncate, cordate ; elytra tubercled ; eyes very prominent." He 
"describes" six species, and on p. 20, "figures" five, with the aid of Dr. 
Fitch's collection. The description of the thorax and eyes belongs equally 
to other genera, whilst we refer the reader to his five figures on p. 20, to 
determine how many of them have the "elytra tubercled." In a similar 
manner, Westwood's description of Engis is tacked to the American Dacne, 
fasciata, which is not an European form. The doctor occasionally quotes 
Dojean & Say, although he seems not to be aware that in most of these 
instances he might have got his generic characters from them. But he is as 
incompetent to draw the proper characters from books as from specimens. 
The author encourages young Entomologists by stating of the Lamelli- 
corns, (p. 63,) that by due attention to the organs he mentions, " the 
student will be able to determine the position an unknown insect may 
occupy." But what if the student should resemble the "professor" in 
being incapable of the " due attention ?" Let us give an example. These 
Lamellicorns contain a shining black beetle with a square prothorax, found 
in rotten wood, and which is very slow and awkward in its movements. 
Emmons figures it in pi. 10, fig. 5, and the antenna (fig. b,) shows that it 
has the Lamellicorn character described by him, a character which is one of 
the easiest to perceive in the whole range of entomology, and it is figured in 
plate 12, figs. p q^ &c., and pi. 10, figs. 4, 6, 9. Moreover, the insect is 
figured by Beauvois, and fully described by Kirby, in a work which the 
doctor had before him, and quotes for other species, yet this insect is made 
a Scarites ! (pi. 18, fig. 14,) with the end of the antennae not lamellicorn ; 
an error which is as great as to consider a ground-hog and a hog, a cat or a 
cat-squirrel, members of the same family. The two are more unlike than 
an eagle or an owl, or a "possum" and a kangaroo, A boy of 14, in the 
entomological class of an agricultural school, should be expelled for such 
a blunder. The reader may compare pi. 10, fig. 5, 5, with pi. 18, fig. 4, /. 
In a similar manner he says correctly, (p. 94,) the Heteromera 'J com- 
prise" those insects in which the four anterior tarsi are five-jointed. Here 
he has a family Diaperidse, of which Westwood (Vol. I., p. 313, fig. 37, 5,) 
gives an English species much like our own well known Diaperis hydni, 
which Dr. Emmons should have cited. He next passes to the Tetramera, 
without mentioning their characteristics or telling which of his families he 
includes in them ; nor does he mention what kind of feet the Phytophaga 
(p. 129) have. Compare the four-jointed tarsus on pi. 14, fig. 16, A, with 
the five-jointed one of fio-, 13 g, of which the hind feet only would have four 
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