242 L-^P""". 
whitish, especially on the undor-side of the dark spot, and the veins forming it is 
also pale; veins blackish, the veinlet closing the discoidal cell, and the base of the 
superior apical fork, whitish or yellowish. 
Length of body 1-1^"' ; expanse of fore-wings 4-5"'. 
A common and variable species. Occurs on tree trunks, and 
among the foliage of firs, yews, &c. 
Hagen (Stett. Ent. Zeit. 1866, p. 235) considers tliis species to be 
represented by P. 4i-maculatus of Lat. (Coqb. Icon. p. 12, tab. 2, fig. 
6, 7), and places hifasciatus of the same author as distinct. I consider 
4i-maculatus to represent the next species {maculipennis, Stepb.), and 
that hifasciatus is the same as Stephens' same named insect described 
above. Coquebert's figure gives a moderately good idea of the insect, 
and the words in Latreille's description, "fascia haseos e maculis tribus, 
altera Jiexitosa " agree precisely with a common form of our hifasciatus. 
This is the insect supposed by "Westwood to be the female of his 
4i-maculatus ; vide "Introduction," voL ii., p. 19, fig. 59, 1. 
7. — Psocus QUADEiMACTTLATUS, Latreille. 
Fsocits 4i-maculatiis, Lat., Coqb. Icon. 12, tab. 2, fig. 6 (fig. 7 var. ?), 
(1799) ; Burm. Handb. 2, p. 779, 13. P. maculipennis, Steph. 111. p. 
119, 6 (1836) ; Hag. Ent. Ann. 1861, p. 31, 20. 
Antenncp. not so long as the wings, fuscous, paler at the base. Head pale yel- 
low ; crown with a few brown spots, and snflFased with blackish about the ocelli ; 
nasus marked with numerous straight brown longitudinal lines, and with brownish 
spots at the sides. Thorax and abdomen blackish, largely varied with yellow (es- 
pecially in the ? ) ; the body is robust in proportion to the size of the insect. 
Legs pale greyish-brown, the tarsi and tips of the tibiae more obscure. Wings 
hyaline, several fuscous (often confluent, sometimes nearly absent,) spots in the 
disc before the middle ; a large rounded fuscous spot in the dilated portion of the 
pterostigma, and another, still larger, placed opi^osite to it on the posterior margin, 
occupying portions of the third and fourth (counting from the apex) marginal 
cellules ; between these spots is often a faint cloud sometimes miiting them ; 
pterostigma triangular, much dilated towards the apex ; veins blackish, that forming 
the pterostigma, that closing the discoidal cell, the base of the superior apical 
furcation, and some at the base, pale yellowish ; posterior wings with frequently a 
greyish cloud on the inner margin near the base. 
Length of body I-I5'"; expanse of foi-e-wings 2J-3'". 
Probably local ; occurs on palings, &c. 
Latreille's description applies very well to this insect ; Coquebert's 
fig. 6 gives a moderately good idea of it, but it appears to me doubtful 
if the supposed variety (fig. 7) belongs to it.- Burmeister's description 
" Vorderfliigel klar, die Nerven braunlich, ebenso 2 Flecke, von welchen 
der eine am Eude des Uandmahles (pterostigma) liegt, der andere 
grossere zwischen der 3-ten und 4-ten Zelle am Hinterrand," suits 
admirably. 
