270 
[May, 
lassus {Asytlianus) ventralis, Fall., Hem., 2, p 31. 
Is a Britisli insect ; Mr. Douglas has taken it, and kindly commu- 
nicated to me a specimen. 
lassus (Afhi/sanus) hrevipennis, Ksclibm. 
Athysanus — Arteu, p. 9. 
I found two or three specimens at Eannoch, which appear to be 
this species. 
Mr. Scott has re-discovered in the Isle of Wight the Batracho- 
morphus irroratus, of Lewis, Trans. Ent. Soc, vol. 1, 1S34, p. 51, pi. 7, 
fig. 5 ; a remarkable insect, whose systematic place appears difficult to 
settle. 
I am informed by Mr. Douglas that Tettigometra impressopunctata, 
Signoret (see vol. 3, p. 14!9), is in the collection of Mr. Dale, occurring 
also in the south of England. 
T. A. M. ; Milford, Afril, 1867. 
A MONOGRAPH OP THE BRITISH PSOCID^. 
BT R. m'lACHLAN, F.L.S. 
{Concluded from p. 245.) 
Genus CtEciltus, Curtis (1837). 
Tarsi 2-jointed. Pterostigma free. Discoidal cell incomplete, 
open. Three complete cellules on the apical half of the posterior 
margin ; the last elliptical and free. 
1. — CiECiLius PEDicuLARius, Liune. 
Hemerohius p>edicularms, Linn. Faun. Suec. p. 384, 1515 (1761); Syst. 
Nat. p. 913, 15 ; Schrank En. Ins. p. 314, 630. Psocus pediculariiis, 
Lat. Coqb. Icon. 10, tab. 2, fig. 1. P. abdominaUs, Ya}). Ent. Syst. suppl. 
p. 204, 9 (1798) ; Steph. 111. p. 127,41 ; Hag. Ent. Ann. 1861, p. 28, 14. 
P. nigricmis Steph. 111. p. 127, 40 (1836). P. duhlus, Steph. 111. p. 127, 
42 (1836). --P. domesticits Burm. Handb. 2, p. 777, 4 (1839); Brauer 
N. A. p. 33.- P. Unotafus, Eamb. Ncvrop. p. 324, 14 (1842). Lachesilla 
fatidica, Westwood, Introduction vol. ii. p. 18, fig. 59, 16, forma microp- 
tera ? 
Antennx sliort, yellowish or brown. Head and thorax Tiniform shining blackish- 
brown, or reddish-brown. Ahdnmen yellowish, the segments margined with brown, 
which colour sometimes suffuses the whole. Legs yellowish, the knees and tarsi 
obscure. Wings hyaline ; a small blackish dot at the commencement of the 
pterostigma, and a similar one at the termination of the cubitus on the inner 
margin ; veins rather strong, dark brown ; pterostigma broad, occasionally with a 
very faint smoky tinge ; the free posterior marginal cellule broadly elliptical. 
Length of body f '" ; expanse of fore-wings l|-2"'. 
