124 LEPIDOPTERA. 



treating. There is no reason to suppose that he employed 

 a light stronger than a lantern, but he could not have 

 failed to obtain it in its rather conspicuous flight at dusk, 

 had it been there. Eight years later Mr, Fenn took his 

 original specimen. For five more years it was not seen, and 

 then only in very small numbers, but after this it increased 

 as I have already described. In the meantime a slight 

 migration had apparently taken place across the North Sea, 

 and a specimen was taken in Belgium. On the other hand, 

 the species may be indigenous to Belgium (if one can 

 oelieve it to be so overlooked), and I may have been only 

 recording the result of a mAgrcdion in iJiis direction ; or it 

 7iiay have been confined to some more remote spot in 

 Norfolk, if such a notion is credible. But to my own mind 

 it is a very suggestive piece of history, and by no means 

 confirmatory of modern theories. 



3. C. phrag-mitidis, Huh. — Expanse 1| inch. Thorax 

 moderately stout ; abdomen more slender ; fore wings rather 

 broad and truncate, smooth creamy-whitish-ochreous, some- 

 times tinged with pale red, darker toward the hind margin ; 

 devoid of markings ; hind wings smoky-brown. 



Antennas of the male simple, almost imperceptibly ciliated, 

 light brown ; palpi rather long and slender, narrowly tufted, 

 pale purple-brown ; head loosely tufted, yellowish-white ; 

 thorax not very broad, smooth in front, loosely scaled 

 toward the back, and with a slightly raised knob of scales 

 behind the middle of the collar, colour yellow-drab ; 

 fascicles obscure, white ; abdomen rather slender, yellowish- 

 white ; lateral tufts small ; anal tuft large and spreading, 

 tinged with purplish-red. Fore wings exceedingly smooth 

 and neat, rather retuse ; costa faintly arched at the base and 

 apex, almost straight between ; apex angulated ; hind margin 

 faintly hollowed below it, oblique and rounded off toward 

 the anal angle ; dorsal margin straight to near the base, 

 where it is strongly rounded in ; colour soft smooth shining 



