1883.1 183 



from which Walker's diagnosis was taken ; but Mr. Dale subsequently 

 distributed it and the following species under this name, and specimens 

 from him, thus confused, are in the British Museum and in my own 

 collection. In my Monograph in the Ent. Mo. Mag., vol. iii, the two 

 species are apparently confused in the description, but the figure 

 (pi. iijfig. 8) represents that now under consideration. This species is 

 probably widely distributed, but before any trustworthy ideas on this 

 point can be arrived at, students of Psocidce must re-examine their 

 collections and state the results.* 



2. P. SUBPUPILLATUS (alhoguttatus, McLach., olim, part. ; Meyer- 

 Diir ; E-ostock ; Kolbe ; oiec Dalman : 4<-maculatus, Steph., 

 part., sec. collect., nee Latr.). 

 Larger than the preceding species, the anterior wings expanding to 6 — 6^ mm. 

 r ur „..™^ The head and thorax paler brown. 



^(S^i&iiii^ ^i^Wi r^^^^^ ...^^5!sv Anterior wings pale grey (often 

 •j^^^^^^ " " "^^P i!^^^''fe^<-i^ extremely pale) ; a large papillate 

 ^^^^*'*'*i^^^%^^^'^^:^/^^ spot in the area at the base of the 



>^fc '^^^. ^■'P-iir^^'H^^^^'^^v y^i^^^y forked vein, but otherioise the 

 -?fe>SVfc •' -'^^v' ij>*'^ cellules and areas are not pupil- 

 '■■-■■'' late; a single series of large 



white spots at the base of the apical cellules and areas ; there is a faintly indicated 

 sub-apical series of darker spots, but they are not enclosed in white spots, and hence 

 are not pupillate. 



I This is commonly known in collections as alhoguttatus, and is 

 probably spread over nearly the whole of Europe. It is partial to 

 Finns sylvestris, but may be beaten from almost any tree. 



C^ciLius OBSOLETUs, Steph. 

 Kolbe recognises three species as confused under this name, all 

 of which occur in Britain. Below I give a translation of his tabular 

 diagnoses from Ent. Nachr., viii, p. 211, 



a. Body greyish-yellow. Wings yellowish ; posterior marginal cellule moderately 



large, broad, depressed obsoletus, Steph. 



Body brownish-yellow. Wings brownish ; posterior marginal cellule small, broad, 

 scarcely depressed Burmeisteri, Brauer. 



J. Body bright pale yellow to reddish -yellow ; posterior marginal cellule yery 

 small, elliptical perlatus, Kolbe. 



' I possess all three in my British collection, determined by Kolbe. 

 All are closely allied, yet I think he may be justified in separating 

 them ; but they require to be studied in connection with their habits. 

 There is some difiiculty in deciding as to whether Stephens' single type 



* The rudimentary sub-costa is incorrectly delineated in the figure here given. 



