THE CANAiDIAN ENTOMOLOGIST 151 



Hemiptera. 

 Lopidea conflucnta Say. Monmouth Jc, N.J., July 14, on leaves, (det. H. G. 



Barber). 

 Poecilocystus basalis Reut. New Brunswick, N.J., July 4, on leaves. 



COLEOPTERA. 



Typopliorus canellus Fab. var. aterrimus Oliv. Monmouth Jc, N.J., July 14, 



on leaves, (det. C. A. Frost). 

 Monachus ater Hald. Monmouth Jc, N.J., July 14, on leaves, (det. C. A. 



Frost). , • 



Chauliognathus marginatus Fab. New Brunswick, N.J., June 26, at flowers. 

 Nodonota puncticolUs Say. New Brunswick, N.J., June 26, feeding on leaves. 



(det. C. A. Frost). 



Lepidoptera. 

 Ammalo tencra Hbn. Monmouth Jc, N.J., June 15, resting on leaves, (det. 



F. E. Watson). 

 Ectypia clio Pack. Under the name Scirarctia clio, Dr. H. Behr ( Papilio, vol. 2. 



p. 187) records the occurrence of this species on Apocynum androsaemi- 



folium in the larval stage and the rearing of several moths from larvae 



collected before May 20. On May 20 a cocoon was started and on July 



12 adults were secured. 

 Archips rosaccana Harr. Elizabeth, N.J., Augu?ft 4, larvae feeding at tips of 



leaves. 

 Tortrix clcmensiana Fernald. Bound Brook, N.J., pupa taken from rolled up 



leaf. (det. A. Busck). 

 Bulia velutinana Walker. Bound Brook, N.J., Sept. 7. Bred from larva found in 



August webbing up several leaves and feeding therein, (det. A. Busck). 

 Poanes massasoit Scud. Monmouth Jc, N.J., July 14, visiting flowers, (det. 



F. E. Watson). 



DiPTERA. 

 Chrysomyia maccllaria Fab. New Brunswick, N.J., Julv 4, visiting flowers. 



(det. J. R. Malloch). 

 Lncilia svlfaniui Mg. New Brunswick, N.J., July 4, visiting flowers, (det. 



J."r. Malloch). 



Mr. Raymond C. Osburn writing in the Ohio Journal of Science (vol. xx., 

 No. 7, May, 1920, under the title "The Syrphid Fly, Mesogramma marginata 

 and the Flowers of Apocynum," gives an interesting account of his observa- 

 tions on the relation between the flowers of dogbane and their insect visitors, 

 special attention being paid to M. marginata Say, of which numerous specimens 

 were noted as having been captured, each being held fast by the proboscis. 

 Mr. Osburn states that some of the flies were not held between the edges of 

 the anthers, but were stuck fast on the outer surface of the anther, and in one 

 case on the inner surface of the corolla. He also calls attention to a hitherto 

 neglected factor in the process of entrapment, namely the adhesive nectar. 

 Mesogrammas coming to a flower cluster were noted as entering and emerging 

 without difficulty several times, but upon watching individual flies it was found 

 that they were eventually caught. Mr. Osburn explains this by saying that the 

 flies are not held until the proboscis becomes sufficiently gummed-up with the 



