THE ENTOMOLOGIST 



Vol. XXXVIII.] AUGUST, 1905. [No. 507. 



DESCRIPTION OF LYC^NA AEION PUPA, c? . 

 By F. W. Frohawk, M.B.O.U., F.E.S. 



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While collecting on July 12th, in company with Mr. A. L. 

 Rayward, in Cornwall, we determined on a systematic search for 

 the pupa of LyccBna arion, and were rewarded by the discovery 

 of a living pupa, of which I have the pleasure of giving the 

 following description and above figures. 



It bears a general affinity to the pupa of L. cegon, excepting 

 its much larger size, measuring half an inch long. 



Fig. 1. — Dorsal View. Across the middle its greatest diameter is 

 y\ in. The bead is obtuse, base of wings slightly angular and swollen, 

 wing slightly concaved, abdomen swollen at third and fourth segments, 

 then attenuating and rounded posteriorly. Fig. 2. — Side View. It 

 measures y\ in. across the middle, the head rounded, thorax convex 

 rising into a slight dorsal ridge, meta-thorax and first abdominal 

 segment sunken, abdomen swollen at the middle and curving to pos- 

 terior segments which are rounded ; anal segment is compressed to 

 ventral surface, cremastral hooks absent; wing ample, swollen, and 

 rounded across the middle and extending to the fifth abdominal 

 segment. 



The entire surface is minutely granulated and covered with very 

 fine reticulations of a deep amber colour ; spiracles are prominent and 



ENTOM. — AUGUST, 1905. K 



