J. UZEL, MONOGRAFIE RADU „THYSANOPTERA". 
Haliday (anno 1837.): »Larva much depressed, white; the head, a bilobed spot 
on the prothorax, the last two segments of the abdomen and a lateral spot on the 
preceding one, black. A few black dots on the thorax. Antennae black, with the base 
pale. Pupa white, with a few red dots on the thorax, and in the place of the simple 
eyes. Sometimes a faint reddish tinge in parts of the abdomen « 
Haliday (anno 1852.): »Subabtera, nigro-picea, pectore dilutius piceo, antennarum 
articulo tertio toto. sequentibus basi pallide flavis, tibiis basi et apice, anticis totis tarsisque 
ferrugineis, 9- Turn fem. alata, alis anticis extus laevissime flavicantibus. Larva de¬ 
press^ alba, capite, antennis, prothoracis macula biloba, abdominis apice nigris. Hab. 
sub cortice arborum exsiccato, praesertim Ulmi , gregaria. Long. fem. 1 1 /' 2 lin., mar. l.lin. 
England.« 
114. Trichotlirips pini Halid. 
1837. Phloeothrips Pini Haliday, Entom. Magaz. Additional Notes, pag. 145. 
1839. Thrips aptera Dufour, Annales d. Scienc. Nat., 11, tab. VIII., fig. 8. 
1840. — Fungi Zetterstedt, Ins. lapponica, pag. 312. 
1852. Phloeothrips Pini Haliday, Walker: Homopt. ins. of Brit. Museum, pag. 
1099.; tab. VIII., fig. 33. 
Haliday (anno 1837.): »Phl. Ulmi simillima, sed magis elongata. Mas sub- 
apterus; fem. subaptera, vel alata, elytris extrorsum infumatis. — The eggs are milky, 
or bluish white, about -A_ of an inch in length, by diameter. They are cylindric, 
with each end equally rounded, thus differing from those of Phi. statices. They are 
attached in loose clusters to the bark, and hardened by a gummy wash, soluble in water, 
by the application of which they are detached, and become flaccid. The larva is longer 
and less depressed than that of Phi. Ulmi ; of a red flesh colour, with the head and 
feet paler; the body is thickly freckled with bright red on a paler ground, which pro¬ 
duces the general tint. The last two segments of the abdomen are black; also the an¬ 
tennae, which have the base pale. Very young larvae are of a dirty watery tint, with 
the antennae and tail black. The antennae are then proportionally larger; the abdomen 
small and attenuate, the hairs of the body very long and conspicuous. The pupa is very 
pale flesh colour, the red dots being fewer; the head whitish, with a reddish patch in 
the middle; the legs and last two segments of the abdomen white; the fore-thighs very 
little thickened. The pterothecae were very small in those examined, which would pro¬ 
bably have produced subapterous individuals, these being the most numerous. The 
perfect insect exceedingly resembles the last species {Phi. Ulmi), but is longer, a female 
of Phi. Ulmi measuring — of an inch in length, by — in breadth; while one of Phi. 
Pini , scarcely so broad, was ^ in length. The fore-thighs, besides, are less thickened, 
which difference is particularly observable in comparing the males. The winged females 
32 * 
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