162 
PSY SEs. 
CAMBRIDGE, MASS., JAN. 1881. 
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PROCEEDINGS OF SOCIETIES. 
CAMBRIDGE ENTOMOLOGICAL CLUB. 
12 Nov. 1880.— 71st meeting. The fol- 
lowing persons were elected to membership: 
W : Barnes, of Decatur, Ill.; J: A. Ryder, of 
Philadelphia, Pa.; S: Wendell Williston, of 
New Haven, Conn.; Mss Emily Adella 
Smith, of Peoria, Ill.; Gustay Thommen, of 
Lowell, Mass. ... Dr. E: L. Mark exhibited 
some drawings which he had made, illustra- 
tive of the external anatomy of the head and 
thorax of a larva allied to Lzthocolletis, which 
he had found mining in the leaves of Acer. 
The special point of interest to which Dr. 
Mark called attention in connection with 
these drawings was the indication of the ex- 
istence of organs performing the function of 
prop-legs, on the back of the thoracic rings. 
Dr. Mark was not aware that such organs had 
been noticed in lepidopterous larvae. He re- 
ferred to the discovery of abdominal legs in 
the embryos of Aydrophilus, Mantissa and 
Campodea, by different observers. . . . Notice 
was taken of the death of Jacob Boll, of Dal- 
las, Texas. Mr. W: Trelease said he 
had taken individuals of the genus Apathus 
on flowers of 7igridia, engaged in supply- 
ing themselves with food. Mr. S: Henshaw 
PS PCIE, 
said he also had taken a few of these bees 
on flowers. ... Mr. Roland Hayward ex- 
hibited a specimen of Calosoma wilcoxit, 
taken at Nantucket, Mass. Mr. S: Henshaw 
said that he had recorded about half a 
dozen captures of this species in) eastern 
Massachusetts. . . . Mr. W: Barnes said he 
had captured several specimens of Anthocharis 
olympia and of Terias nicippe in Central Il- 
linois. This region is the meeting place of 
the southern and northern faunae. The limits 
of the faunae come within fifty kilometres of 
each other, and are not indicated by any 
geographical feature. Mr. Barnes*said he 
had found Pafgilio cresphontes feeding on the 
hop tree (Ptelea trifoliata). ... Mr. W: 
Trelease said he had found Harfalus caligi- 
nosus feeding on the ripening seeds of the 
rag-weed (Ambrosia artemisiaefolia). Mr. 
Roland Hayward said he had found HZ. penn- 
sylvanicus, H. compar and H. faunus on the 
same plant. Mr. E: P. Austin said he had 
found several species of carabidae feeding on 
plants, some of them eating the leaves. .. . 
Mr. W: Trelease said that the young leaves of 
poplar trees (Populus) had nectar glands on 
the petioles, to which he had found ants and 
parasitic hymenoptera attracted for the sake 
of feeding on the nectar. In a grove of 
Japanese persimmon trees (Dzosfyros) in the 
grounds of the Department of Agriculture at 
Washington, the leaves had been distorted by 
a homopterous insect which produced honey- 
dew upon them, and he had seen numerous 
honey-bees visiting these leaves to obtain the 
honey-dew. He had also seen humming bees 
(Bombus) feeding on carrion. He had found 
Vespa maculata cutting holes 3 mm. in diam- 
eter in the flowers of ?zbes cynosbati ; he had 
also found ants cutting holes in a similar 
manner in these flowers, and perforating the 
corolla of Salvia splendens near the mouth of 
the calyx. Prof. J: H: Comstock had found 
a fungus (‘‘ Scorzus spongiosus”) growing on 
the honey-dew produced by woolly plant-lice 
[Zriosoma?]|. Fungus had also been found 
on the honey-dew produced by cocctdae on 
the orange tree (Cztrus). 
