244 [April, 
237). On this authority I include the species in this Monograph. 
The above description is made from a Prussian example, communicated 
to me by Dr. Hagen. It is allied to P. suhnehulosus and P. ■i-maculatus 
(maculipennis) . I have compared it with the Linnsean types. 
10. — Psocus MOEio, Latreille. 
Fsocus morio, Lat. Coqb. Icon. 11, tab. 2, fig 5 (1709) ; Curt. B. E. 
C48> 18 ; Burm. Handb. 2, p. 781, 20 ; Hag. Ent. Ann. 1861, p. 32, 22. 
Antennce not nearly so long ^s the wings, pilose in the (? , fuscons, paler at the 
base. Head fuscous; nasus darker than the crown, with no evident stripes. 
Thorax and abdomen fnscous. Legfs dark testaceous. Wings STxioky ; anterior wings 
shining, with the basal half dai-k fuscous, somewhat coppery ; 'ptero stigma large, 
triangular, blackish, paler within ; veins dark fuscous ; posterior wings rather paler 
than the apical portion of the anterior. 
Length of body 1"' ; expanse of fore-wings 2-2|"'. 
Eare. I have a specimen taken recently near Canterbury ; two 
are in the Oxford Museum ; and others were in Curtis' collection. 
The coloration of the wings will readily separate it from all others. 
More species of this genus no doubt occur with us. 
Genus Stenopsocus, Hagen (186G). 
Psocus p. Auct. 
Tarsi 2-jointed. Pterostigma connected. Discoidal cell complete, 
less quadrangular than in Fsocus, rather irregular. Eour complete 
cellules on the apical hatf of the posterior margin ; the last triangular 
and pedunculated. 
1. — Stenopsocus immaculatus, Stephens. 
Fsocus immaculatns, 8teph. III. p. 125, 30 (1836); Hag. Ent. Ann. 
1861, p. 25, 7. P. rufescens, Steph. 111. p. 125, 31 (1836). F.flaves- 
cew*,Steph. 111. p. 125, 32 (1836). P. venosus, Steph. 111. p. 121, 17 
(1836). P. strigosus, Burm. Handb. 2, p. 776, 1 (1839) ; Brauer N. A. 
p. 33. P.flavicans, Zett. Insect. Lapp. col. 1054, 8, ? (1840). P. 
suhfumipennis, Zett. Insect. Lapp. col. 1053, 5, ^ (1840). 
Antennas as long as the wings, slightly pilose in the S , blackish, the two basal 
joints yellowish. Head yellow ; crown with a blackish longitudinal median line ; 
nastis slightly fuscescent. Thorax dark brown. Abdomen yellow, sometimes fns- 
cescent. Legs yellow, the tips of the tibiaa and apical joint of the tarsi fuscous. 
Wings hyaline, immaculate ; 'pterostigma elongate, narrow, faintly tinged with 
yellowish ; veins fine, yellowish or brownish. 
Length of body l-lf'"j expanse of fore-wings, i^-Sj'". 
A very common species amongst trees and imdergrowth. 
