Supplementary Report on Insects Affecting the Strawberry. 239 



The Strawberry Plant Lice. 

 Order Hemiptera. Family Aphidid.e. 

 In addition to the species Siphonophora fragariee, mentioned in the last 

 volume of the Transactions as a strawberry plant louse, I have now to report 

 two others infesting the strawberry — one a minute green or yellowish green 

 form, occurring upon the leaves and leaf and flower stems throughout the 

 summer, and the other observed as yet only upon the crown of the plant. 

 The former is described in my Report for 1883 as State Entomologist of 

 Illinois under the name SiphoiKypliora mi}iur,i\n([ the latter is an Aphis as yet 

 undetermined, no winged individuals having been observed. The figure in 

 ray former paper represents this Aphis. 



The Eed Spider {Tetmnychus telarius, L.) 

 Class Arachnida. Order Acarina. Family Acarid^. 



This abundant and everywhere well-known pest, althoagh not an insect, 

 belonging, instead, to the mite family of the class Arachnida, may be men- 

 tioned here merely to call attention to the fact that it is reported as some- 

 times injuring the strawberry'. Its method of attack is too well known to 

 gardeners to need special description. It may be sought where the leaves of 

 the strawberry turn gray or yellow without any cause observable on ordi- 

 nary inspection. If present, the mites will be revealed to close scrutiny as 

 numerous moving greenish or reddish points (each usually with a black 

 blotch on either side), which under a gkss are seen to have eight legs, and 

 to be without distinction of thorax and abdomen. 



Spraying Avith soap-suds or dusting with flour of sulphur are the usual 

 remedies .for this pest. 



The Small Yellow Ant {Sjlenopsis fugax, Latr.) 

 Order Hymenoptera. Family Formicid^. 



This is a minute yellow ant, very abundant everywhere, and commonly 

 nesting under stones, which was discovered last spring and summer to be 

 the author of considerable mischief in the corn field, and also to eat holes in 

 ripe strawberries. 



It belongs to the sub-family Myrmicina, which is characterized especially 

 by the fact that the peduncle of the abdomen is composed of two nodes 

 instead of one, as in the larger and more abundant sub-family, Formicina. 



In the strawberry field its work was but rarely seen. Here, selecting the 

 largest and ripest berries, a little group of the ants would soon almost bury 

 themselves in a cavity gnawed out of the fleshy fruit. 



The Strawberry Weevil {At-dlionomus musculus, Say.) 



Order Coleoptera. Family CuRCULiONiDyE. 



Under the above caption, Professor A. J. Cook, of the State .Vgricultural 



College of Michigan, announces in the Report of the Michigan Horticultural 



Society for 1883 the appearance in that State of a " new strawberry pest," 



