222 
PROCEEDINGS COTTESWOLD CLUB 
1920 
Pygidium small, short, transversely semi-circular, with 
blunt sub-conical axis showing 4 — 5 annulations, and with 
lateral lobes composed of four distinct pleurae, the posterior 
one being very short and only represented by an elongated 
nodule. 
Dimensions. 
Length of head-shield . . . . . . 7.5 mm. 
Length of thorax . . . . . . 13.0 mm. 
Length of pygidium . . . . . 4.0 mm. 
Remarks. — Our form differs from Lindstrbm’s figures and 
description of C. papillata by the reduction of the first lateral 
lobes of the glabella and by the shorter and more transverse pygi- 
dium with fewer segments. But probably from the fact that the 
number of thoracic segments is only 12 instead of 13, the latter 
character is due to immaturity. The front pait of the head- 
shield of this species was not figured by Lindstrom, so we do 
not know if the Swedish form has the large parabolic pre- 
glabellar area which our head-shield possesses ; the genal angle 
also was not represented, so we are ignorant whether it had 
the same shape as in our specimen. For these reasons it is 
advisable to regard our May Hill form as a variety, if not a 
distinct species, which may be provisionally termed puellaris. 
(Au g. 1917.) 
