i87 



in ? , which is darker, and the white s. t. line quite prominent. 

 Hind wings pale fuscous, trace of median spot and extra mesial 

 line ; a vague terminal band. Beneath grayish fuscous, with 

 common line and faint discal spots. Four specimens, one with a 

 reddish tint which seems a variety. Arizona. Expanse 20 mil. 

 Coll., B. Neumoegen, Esq. 



PREPARATORY STAGES OF SEIARCTIA CLIO. PACK. 



By Dr. Hermann Behr. 



I do not know if the metamorphoses of this rare insect are 

 known, and I therefore deem it an entomological duty to publish 

 what a lucky chance has revealed to me on this subject. We are 

 indebted for this interesting discovery to Mrs. Curran, wife of 

 Dr. Curran, the well-known author of valuable works on Micro- 

 scopic Botany. Five caterpillars were brought to me by Mrs. 

 Curran, resembling most those of a species of Halisidota — in fact, 

 they were so like those of the Halisidota of the oak {H. Ed- 

 wardsii) that I at first thought them identical, but I afterwards 

 observed that the hairs do not spring in a stellate form from 

 tubercles as in Arctians and LitJiosians, but that they grow in bushes 

 like those of the larvae of Halisidota, and of the European Syn- 

 toinis Phegea, and the tufts were combed backwards as in Ecpan- 

 theria scribonia. 



The food plant was Apocynuni androscemifolium. The larvae 

 were full grown when I received them, so I cannot judge if they 

 would eat other plants of the Apocynnni or Asclepias group. I 

 tried Vinca and Nerium without success. 



On the 20th of May the first began to spin and formed a web 

 exactly like that of Halisidota. On the 12th of July I found in 

 the breeding box a pair of Seir. Clio, the following day another, 

 and on the i8th a single female. 



The history of this transformation confirms my idea of the 

 systematic position of Seirarctia and EcpantJieria being near 

 Halisidota and Syntomis, to which genera also the neuration of 

 the hind wings of the present insect bears a very close relation. 



NOTES ON LEPIDOPTERA. 



Larva of Amorbia humerosana. Clem. Body thickest near the middle, 

 uniformly yellowish green, with a few scattered whitish hairs. Thoracic plate 

 green, a curved lateral black dash on the first segment. Head pale brown, 

 greenish in the centre, with a lateral black dash. Thoracic and abdominal legs 

 and feet concolorous with the body, the anal feet black. Length when at rest 

 twenty-two mil.; when crawiing, 25 mil. Width in widest part, three mil. 

 Food plants, the poison ivy {Rhus toxicodendron Mx.), and the spice bush 

 {Lindera Benzoin Meis). Pupated September 16, in a folded leaf. Imago 

 May 21. L. W. Goodell, Amherst. 



