INSECTS. 
53,3 
vesicular and destitute of hooks; antennae consisting of ten or 
eleven joints, and longer than the head; body soft. 
Genus THRIPS.— Linnaeus. 
Generic Character. —Rostrum placed in the lower part of the 
head, very small; palpi short, filiform, three-jointed; elytra and 
wings nearly similar, linear, with ciliated margins, and extend¬ 
ing horizontally over the abdomen; tarsi two-jointed, the last 
one vascular; antennae eight-jointed, nearly setaceous, the length 
of the head and thorax; anterior segment of the trunk greatly 
longer than the others ; body linear. 
Thrips physapus. —The Physapus Thrips. 
Plate C. fig. 11. 
Black, with white transparent wings, and a hairy marginal 
fringe. Inhabits Europe, on various flowers. 
TRIBE V.-GALLINSECTA. 
Tarsi having but one joint and terminated in a single hook ; 
male having no rostrum, with two wings or elytra; females 
apterous, provided with a rostrum ; generally fix themselves at 
the time of depositing their ova, and take the figure of a gall, 
which covers the ova, antennae composed of eight or nine joints 
in some, and eleven in others, and sometimes from twenty to 
twenty-four. 
Genus COCCUS.— Linnceus. 
Generic Character. —Tarsi single jointed, with a single hook 
at its termination ; male without a rostrum ; wings covering the 
body horizontally; abdomen terminated by setse; female apter¬ 
ous, and having a rostrum; antennae filiform or setaceous? 
eleven jointed. 
Coccus cacti. — The Cochineal Coccus. 
Plate C. fig. 1. 
Male small; anterior antennse shorter than the body, which 
is elongated, and of a deep red colour, terminated by two long 
diverging setae ; wings large, white, and crossed over the abdo¬ 
men. The female nearly double the size of the male; deep 
brown, depressed underneath; feet very short. Inhabits Mexico. 
