THE CANADIAN ENTOMOLOGIST. 311 



for some time. On the same date as many as eight specimens of a much 

 larger Scarabeid beetle, EupJtoria melancholica. Gory, were found clustered 

 at the base of a single head. Only one of them was in any way entangled, 

 but all seemed in a dazed condition, as if intoxicated by the substance 

 fed upon. A number of the same beetles were taken from a similar posi- 

 tion on several occasions thereafter. 



On Sept. 23rd about thirty small, black snout beetles (the genus 

 unknown to me), three specimens of a small butterfly, Paniphila Jm7'on, 

 Edw., more Phalangidse, several ants, about twenty large Hemiptera, 

 Eiischistus variolarius, Beauv., together with a number of flies, were 

 taken. Several of the snout beetles, the Phalangidce, ants, flies, and one 

 of the butterflies, were dead. All the others were easily captured with 

 the fingers, being in the same dazed condition as the beetles above men- 

 tioned. The thistle heads whose bracts were most frequented by the 

 insects were those in which the flowers had disappeared and the fruit was 

 beginning to mature. Specimens of all the above-named insects were 

 secured at intervals throughout October and until the plants were wholly 

 deadened by the frost. 



Of the use of the glands and their excretion to the plant I can give 

 no explanation. They do not seem to serve, as do those of Silene, in 

 keeping injurious insects from the flowers, nor does the plant appear to 

 make any use of the insects which become prisoners. 



NOTES ON THE HABITS OF SIPHONOPHORA 

 CUCURBIPE, MIDDLETON. 



BY F. M. WEBSTER, WOOSTER, OHIO. 



During the last days of August, Dr. Kellicott and myself, in studying the 

 Squash borer, Melittia ceto, transplanted to a large breeding cage a 

 number of roots and portions of the stems of Squash vines, on one of 

 which was a leaf or two. The cage was filled with earth, dug up in the 

 field, and when the vines were properly transplanted, the cage was covered 

 with fine Swiss muslin, and placed in the Insectary. I soon noticed 

 Siphonophora on the stumps of the vines, and before long there sprung 

 up, from the soil in the cage, numbers of plants of Capsella biirsa- 

 pastoris and Nepeta glechoma. These plants soon became populated, 

 the Squash having died out, and, November 4, I took from these, 

 apterous oviparous females pairing with vvinged niales^, and, al§o, apterous 



