the canadian entomologist 235 



Directions for Sending Living Apiiids. 



It is desirable, in sending aphids for determination, that 

 living individuals be submitted when possible. v We have found 

 the following method to be the most satisfactory of several tried : 



Place a portion of the plant bearing the aphids in a glass 

 vial and with it a strip of filter paper, the size depending on the 

 size of vial and quantity of foliage placed within it. The vial is 

 then tightly stoppered with a cork and placed in a mailing tube 

 or substantial box for mailing. Always have the stem of the plant 

 and the end of the filter paper sufficiently long so that they will 

 be held by the cork; otherwise the loose foliage and twigs will 

 shake about and may crush the aphids. By" this method we 

 have shipped living specimens 1,700 miles and had them reach 

 their destination in excellent shape. Tin salve boxes also make 

 excellent shipping boxes for living aphids. Shipments of this nature 

 should always be accompanied by full data, such as name of food 

 plant, locality, date, part of plant affected, and collector. 



All of the illustrations in this paper are by Dr. Henry Fox, 

 excepting figures 10, 21, and 22, which are by Mr. VV. R. Walton 

 and figures 43 and 45 to 48 inclusive of plate VII and all of plate 

 XYIII, which are the author's. 



Explanation of Plates. 



Plate II. Macrosiphum creelii n. bp. — Figure 1 antenna, and 

 2 cornicle of wingless viviparous female; 3 head and 4 antenna of 

 winged viviparous female. 



Macrosiphum coryli n. sp. — 5 head, 6 antenna and 7 cauda 

 of wingless viviparous female; 8 antenna, 9 wing, and 10 cornicle 

 of winged viviparous female. 



Plate IV. Macrosiphum venceju'scce n. sp. — 11 head, 12 

 antenna and 13 cauda of wingless viviparous female, 14 head, 15 

 antenna, 16 wing, and 17 cornicle of winged viviparous female; 

 18 antenna of winged male; 19 antenna and 20 hind tibia of 

 wingless oviparous female. 



Plate V. Macrosiphum HI ice Monell. — 21 head, 22 antenna 

 and 23 cornicle of wingless viviparous female; 24 antenna of 

 winged male; 25 hind tibia of wingless oviparous female. 



