Haltice.] PHYTOPHAGA. 3939 
b. Transverse impression at base of thorax 
indistinct; posterior coxe widely distant. 
a®*. Upper surface not pubescent . H1ippurrPaitLa, Foudr. 
b*, Elytra set with distinct rows of aes Eerrrix, Foudr, 
2. Intermediate and posterior tibiz with a tooth on 
their outer side before apex. 
A. Head large without an elevated keel on fore- 
head; labrum large; elytra (in our species) 
more or less confusedly punctured...) 37.0 © CuTooNEMA, Steph. 
B. Head rather small, with an elevated curved 
frontal keel; labrum small; elytra punctured 
in rows. . 5 ja 2 2. PRECTROSCEDIS, Rede: 
. Antennze 10-jointed ; posterior tarsi. inserted at 
some little distance before the apex of tibie . . . PsyziiopeEs, Zatr. 
LONGITARSUS, Latreille. (Thyamis, Stephens; Teinodactyla, 
Foudras.) 
The members of this genus may be distinguished by having the first 
joint of the tarsi very long, as long as half the tibia; the second joint is 
attached to the first by a “socket joint, and the remainder of the tarsus 
may often be observed bent almost at right angles to the first joint; the 
head is triangular and projecting, with the frontal tubercles obsolete ; 
the thorax is more or less transverse, with the sides and anterior and 
posterior angles more or less rounded, sometimes almost smooth, but 
usually more or less distinctly, although often very finely, punctured ; the 
elytra are oval, or oblong oval, with the punctuation usually confused, 
but in a few species arranged in more or less distinct rows, especially 
towards base ; the colour is variable, but is very rarely metallic; up- 
wards of two hundred species have been described, of which no less 
than one hundred and three are found in Europe, and about forty occur 
in Britain ; they are widely distributed, and a considerable number have 
been described from Central America and the tropical portions of North 
America; representatives also occur in North America, China, Palestine, 
India, Ceylon, the Atlantic Islands, South Africa, Tahiti, Cuba, 
Celebes, &c. 
Many of the species are extremely closely allied, and in consequence 
are very hard in some cases to determine with certainty ; this is more 
especially the case with those that are of a testaceous or rufo-testaceous 
colour; the distinctions of many of these depend largely on the colour of 
the upper and under-side, femora, &c., and unless they are killed and set 
while fresh the colour soon alters and becomes much darker, especially 
if laurel has been used; the distinctions also of punctuation and general 
shape are also hard to express in words, and in some cases are somewhat 
variable ; in fact authors often differ considerably in describing the same 
species, and even contradict themselves in their tables and subsequent 
descriptions; it is obvious, therefore, that any tables must be regarded as 
each side of the transverse impression are distinct, and it cannot therefore be classed 
with Ochrosis as here constituted; in the last European catalogue it is placed with 
C. transversa, &c., under the sub-genus Arrhenocela of Crepidodera. 
