20 ENTOMOLOGICAL NKUS. [I'Yb. 



tachecl in which the prisoner, is allowed a few hours each day \\- 

 exercise. Sonic time ago while on a professional visit to some of 

 the inmates I was mortified to find a lepidoptcrist. although in- 

 terested in his captures, which were all made in the yard attached 

 to his cell. The cell yard was enclosed by stone walls 14 by 17 

 feet and n/'2 in height. In this small space he had caught during 

 the past summer eighteen species, as follows: /'ti/>/7ti> astfn'as, 

 turnus, glaucus, ajajc; Pieris rapce; Colias philodice; Danais ar- 

 chippus; Grapta interrogationis ; Vanessa antiopa, atalanta; An- 

 cyloxypha numitor; Eudamns tityrus; Philampelus satcllitia; 

 Sphinx cclcus; Hemaris thisbc; Catocala obscura, ilia; Cicada sp. 

 P. ajax is a great rarity here. I have never seen but one in 

 the city limits, and Catocala obscura is also rare. Most of the 

 species were represented by a number of specimens. 



AN ERROR CORRECTED. 



Mr. Wm. Beutenmueller in his article on the preparatory stages 

 of Callosamia angulifera, Ent. Amer. \'ol. \ , \o. n, p. 200, 

 says " the cocoon can only be separated from that of Promethia 

 by its larger size." The differences in the cocoons and the habits 

 of the larvae of the two species in my mind are the most striking 

 proofs of the distinctness of the species. The full grown Pro- 

 methia caterpillar takes great care to securely fasten its cocoon to 

 the twigs of the tree and hangs by a thread of tightly -woven silk, 

 which has been spun over the stem of a leaf and the dried leaf 

 itself from the outer covering of the cocoon. The angulifera 

 caterpillar either spins its cocoon in the leaf and when the leaf 

 drops in the fall the cocoon falls to the ground in it, or crawls 

 down the trunk of the tree and spins its cocoon in the i^rass, or 

 fastens it to a dead stick under the tree. The angnlift-ra cocoon 

 is oblong, being one inch and a halt in length by live-eights of 

 an inch in width, and never has the silken prolongation as in 

 Promethia (see "1'syche," Vol. V, p. 261), and is not obscured 

 so much by the curled leaves, and has a more marked appearance. 



Siphonophora or Neclarophora? 



r,v CL \KINCI: M. wi i n. 



The fact that the aphidid genus Sifilunuiphora has recently been 

 replaced by Ncc laroph ora, does not seem to have received .us 



