1872.] 63 



broken before I got liome. S. terminalis, which on my former visit was extremely 

 common, was present in only one example. The almost ubiquitous S. fascata was 

 not seen. 



S. Dalii has not yet been found out of Britain ; but S. terminalis is recorded 

 as occurring in Sweden, and I have received indications that it is also found in 

 Germany. — E. M'Lachlan, Lewisham : Sth July, 1872. 



An addition to the list of British Psocidm (Stenopsocus stigmaticus, Imhoff and 

 Lahram). — At the time and place mentioned in the preceding note, I captured 15 

 examples of Stenopsocus stigmaticus, described and figured by Imhoff and Labram 

 in their ' Insekten der Schweiz.' This was almost the only described European 

 siDccies of winged PsocidcB that had not occurred in Britain when I wrote my 

 Monograph of the British species of the family, and I was not then fidly acquainted 

 with it, and had not seen the original description and figure {cf. Ent. Mo. Mag., 

 vol. iii, p. 245). Since then, I have received numerous examples from Herr Meyer- 

 Diir from Biirgdorf in Switzerland, and from Belgium, and I possess it also from 

 Germany, from an uncertain locality. Hagen considers the species identical with the 

 insect described by Fabricius in his ' Systema Entomologise ' as Hemerohius striatulus 

 (cf. Stettiner ent. Zeit. 1866, p. 170), but it seems to me that the description is by no 

 means sufficiently exact to identify the species, and I therefore have not adopted 

 Fabricius's name. The insect may be described as follows : — 



Antenna slightly longer than the wings, black, the two basal joints yellow. The 

 whole body is of a beautiful pea-green, when alive, with black markings, chang- 

 ing to yellowish-gi'cen soon after death. Nasus fuscescent or blackish (less 

 decidedly so in the $ ), and generally with the ocelli surrounded by blackish. 

 Thorax almost entirely blackish above, the sutures between the lobes remaining 

 gi-een. Abdomen slightly blackish at base and apex ; towards the apex is a ring 

 of yellow, occupying a segment, scarcely evident in the living insect, but becoming 

 very conspicuous after death, especially in the $ . Legs greenish, the tarsi and 

 (in the $ ) the apical portion of the tibiae, fuscescent ; sometimes only the apical 

 joint of the tarsi is fuscescent. Wings hyaline ; veins strong, almost entirely 

 blackish ; the vein under the pterostigma in the anterior wings, from its apex to 

 the point where it emits the transverse veinlet, much thiclcened and conspicuously 

 black (especially in the $) , a character partaken of in a lesser degree by the 

 transverse veinlet itself: pterostigma bright yellow, much angidated at the point 

 where is emits the transverse veinlet. Expanse of wings 4 lin. 



Closely allied to the common /S. immactdatns, Stephens. Distinguished there- 

 from by its slightly smaller size, the much brighter green of the body, the brighter 

 yellow of the pterostigma, the form of this latter (which in immaculatus is not at 

 all, or scarcely, angulate at the point where it emits the transverse veinlet), and 

 especially by the conspicuously thickened black nervure which bounds the pterostigma 

 at its lower edge. 



My examples were taken from a mixed hedge consisting of hazel, hawtliorn, oak, 

 buckthorn, &c., and I was not able to satisfy myself that the species was attracted to 

 any one of these in particular. I had loug felt sure that ifc would occur in Britain, 

 and no doubt it exists in many localities. The Ceylonese S. uniformis, Hagen, ia a 

 vei'v closely allied species. 



