396 



PSYCHE. 



[August 1899. 



8, spreading into a transverse shade on joint 

 8 posteriorly and 9. Tubercle i of joints 6 

 and 8 is larger than elsewhere and lighter 

 brown, with a dark tip. Thorax and joints 

 II to 13 mostly dark. 



Stage IV. Very angular and stick-like. 

 Head flat before, the apex retracted, gray 

 brown, darker streaked on the vertex; width 

 1.9 mm. Feet of joints 2 and 3 appressed, 

 those of joint 4 protruded and with swollen 

 bases; body angled sharply at joint 4 in rest; 

 slender for joints 4 to 7, joints S to 13 much 

 thicker; tubercles i on joints 5 and 6 en- 

 larged; joints 8 and 9 swollen, forming col- 

 lars, the tubercles prominent ; joints 10 to 13 

 nearly smooth. Dark brown, frosted with 

 gray; rusty brown dorsally, especially on the 

 prominent parts; shaded with whitish be- 

 hind joint S; 11 to 13 dark gray. Below 

 mottled graj' and brown like bark. The 

 prominent bases of the feet of joint 4 are light 

 brown. The larva is much streaked and 

 dotted; the dorsal paired pale dots are gone. 



Stage V. No essential change. The 

 head is about 2.7 mm. wide; there is a pair 

 of thick anal prongs. The humps of joints 

 8 and 9 are variegated with shades of brown 

 and whitish, especially a distinct dark tri- 

 angle over tubercle i and a dorsal triangle 

 alternating with this. 



The species is single brooded. Eggs 

 hatched the first part of June and larvae spun 

 early in August, passing the winter as pupae. 

 The moths emerged in May of the following 

 year. The larvae fed on maple. 



PROCEEDINGS OF THE CLUl 



I2th May, 1S99. The 209th meeting was 

 held at 156 Brattle Street, Mr. J. W. Folsom 

 in the chair. 



The death was announced of Mr. Edward 

 Winslow Cross, recently elected a member 

 of the club. 



Mr. S. H. Scudder read a letter from 

 Clifford Pribble of Topeka, Kan., a boy of 

 13, upon night flying butterflies. He said 

 that in the autumn of 1898 he had found 

 Anosia plexippus almost every night and 

 that on one occasion had taken Amblyscirtes 

 ■vialis around lights. 



Mr. J. W. Folsom read a paper on the 

 number of segments in the head of insects. 

 It was based upon embryological studies in 

 the Collembola, Mr. Folsom arriving at the 

 conclusion that it is composed of seven seg- 

 ments. The paper will appear in Psyche. 

 Much discussion followed. 



Guide to the Genera and Classification of the Orthoptera of North America 

 north of Mexico. By Samuel H. Scudder. 90 pp. 8°. 



Contains keys for the determination of the higher groups as well as the 

 (nearly 200) genera of our Orthoptera, with full bibliographical aids to further 

 study. Sent by mail on receipt of price ($1.00). 



E. W. WHEELER, 30 Boylston Street, Cambridge, Mass. 



A. SMITH & SONS, 269 PEARL STREET, New York. 



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