543. 
544. 
545: 
546. 
547- 
548. 
S. 
S. 
S. 
C. 
99 
SESIA, F. 
scolieformis, Bk. Has been recorded from only one 
locality in the district, namely Llangollen; but the 
insect does not appear to have been taken there in 
recent years. 
D.—Llangollen (N. Cooke in Zvologist, Vol. XX. 
(1862), p. 8249); ditto, 1. under bark of rotten birch (A.); 
in a birchwood near Llangollen (W.G., also Ashworth 
in W.L.) 
spheciformis, Gern. = sphegiformis, F. Rare and local. 
C.—Delamere Forest, one r1gor (N.) 
D.—Llangollen Valley (T. S. Ashworth in Zoologist, 
Vol. XIII , 1855). 
tipuliformis, Cl. Recorded commonly in localities that 
have been well worked. 
C.—Wirral, not infrequent (W.G.); Oxton (Sh.); 
Chester (W.L., A., Do.); ditto, 1. a. in vibes (N.); 
Vicar’s Cross (P.C.); Bunbury and Knutsford (Da.); 
Bowdon, c. (Tp., N.); Stockport, local but c. (J.) 
Car.—Near Conway (W.G.); on coast, 1. 1900 (J.) 
culiciformis, L. Recorded from the Delamere Forest 
district only. 
C.—Delamere Forest, at rest on birch leaves 1897 
(Th.); ditto, pupze in birch stumps (M.,N.); Hartford, 
one (S. J. Capper in £.L.) 
musceformis, View. = philantiformis, Lasp. Very local, 
but generally plentiful where it occurs. 
F.—Queen’s Ferry, 1. only, in thrift by the Dee (A.) 
Car.—On coast, c. (J.; F. C. Woodforde); Abersoch, 
c. (Da.) 
Ang.—Near Holyhead, p. 1900 (R. Freer, Ant. Rec., 
Vol. XII., p. 248). 
COSSID. 
COSSUS, F. 
cossus, L. = ligniperda, F. Appears to be generally 
distributed and fairly plentiful in some places. Mostly 
seen in larval stage. 
C.— Wirral (4.Z.); Bidston, one at sugar (Pr.); 
o. as 1. about Chester (A.); Lache Lane, Chester, one 
1899 (Do.); Cherry Orchard, Chester (N.); Tarvin 
Sands, n.u. in larval stage (F.); Delamere (W.Z.); 
ditto, trees attacked by 1., f.c. (H.); White Hall, near 
H2 
