Elementary entomology. Insects. HYMENOPTERA 251 leaves the swollen skin of the aphis through a round hole. Often whole colonies of aphides will be found to have been thus parasi- tized. One
Golden Butterfly lysestake lysestake stearinlys Cup 660a | Fyndiq
Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. ORDER HYMENOPTERA 299 tents of which are not equal to a drop of water. However, the parasite may
Stearinlys | FINN torget
Golden Butterfly lysestake lysestake stearinlys Cup 660a | Fyndiq
Lys og mørke - Når livet krever mer - Maria.Anonsenart
Circular. Insects. 4 Unfortunately this parasitic wasp—as with the other beneficial insects—is active only while the temperature is above 56° F., or at least 10° above that at which the "
Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. Fig. 240.—Wingless female of "green V)Ug" containing larva of the parasite Lysiphlebus tritici. Much enlarged. (W'ebster ...
Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE BUR CLOVER APHIS. 27 clover and a species of Oxalis. Mr. Sanborn has also noted it as occurring on clover {TrifoUum