136 INSECTA. 
tremity. The Jast joint of the posterior tarsi of the Octogonotes is 
abruptly inflated and rounded above, or ampullaceous, with the two 
terminal hooks inferior and small. 
, 
(Epionycuis, Lat., 
Is distinguished by this last character from the following subgenera. 
To this subgenus we refer the two first families of Iliger’s Mono- 
graph. ; 
But a single species is found in Europe—the A. marginella, 
Oliv., Col., VI, 93, bis, ii, 34—and even that is confined to Spain 
and Portugal *. 
In the remaining subgenera the last joint of the tarsi is elongated 
and gradually thickened, with the two hooks, of the ordinary size, 
situated as usual at its extremity, and ina longitudinal direction. 
Psyuuiopes, Lat. 
Where the first joint of the posterior tarsi is very long and inserted 
above the posterior extremity of the tibice; this extremity is pro- 
longed in the manner of a conical, compressed, and hollow appen- 
dage, somewhat dentated along its edges, and terminated by a small 
tooth f. 
Dreoua, Lat.—olim ALrtirarsuvs. 
Where the greater part of the head is sunk in the thorax, and the 
posterior tibize are* terminated by a forked spine t. In Altica proper, 
or 
Autica, Lat., 
The head is salient, and the posterior tibize are truncated at their ex- 
tremity, and without any particular prolongation or forked spine; the 
tarsus originates from this extremity, and its length is not equal to 
half that of the tibia. 
A. oleracea; Chrysomela oleracea, L.; Oliv., Col., VI, 93, bis, 
iv, 66. About two lines in length; oval, elongated; green or 
bluish; a transverse impression on the thorax; elytra finely 
punctured, On vegetables. It is the largest of the European 
species. 
A. nitidula; Chrysomela nitidula, L.; Oliv., Ib., V, 80. 
Green; head and thorax golden; legs fulvous. On the Willow §. 
* Add the A. bicolor, thoracica, cincta, albicollis, lunata, and some other species of 
Olivier. d 
+ The ninth family, or the Altitarsi, Illig., comprising the following species of 
Gyllenhall: chrysocephala, napi, hyosciami, duleamare, affinis. 
Those which he calls dentipes, aridella, and some others in which the posterior 
tibiz are dilated near the middle of their posterior side, in the form of a tooth, with 
a canal beneath, longitudinal and ciliated along the edges, might constitute a separate 
subgenus. 
+ The eighth family, the A. Echii, Oliv., and the A. occultans, Gyll. 
§ The 3, 4, 5, 6, families of the same, 
