. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . CHAPTER CLXXXVI. The Grain Aphis. (Cal.) {Aphis avensc.—Fabricius.) Synonym.—Siphonophora avcme.—Fabr. Order, Hemiptera ;Sul>order, Homopteka ; Family, Aphidid/E. [Living upon the stems, leaves, etc., of wheat, barley, etc.;small brown, green or yellow plant-lice, which j)uncture theplant with their beaks and extract the sap.] Fig. 267.—GrainAphis; 1, the wingedlouse, enlarged (natu-ral size indicated at 2)—colors, green, yel-^lowi
. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . CHAPTER CLXXXVI. The Grain Aphis. (Cal.) {Aphis avensc.—Fabricius.) Synonym.—Siphonophora avcme.—Fabr. Order, Hemiptera ;Sul>order, Homopteka ; Family, Aphidid/E. [Living upon the stems, leaves, etc., of wheat, barley, etc.;small brown, green or yellow plant-lice, which j)uncture theplant with their beaks and extract the sap.] Fig. 267.—GrainAphis; 1, the wingedlouse, enlarged (natu-ral size indicated at 2)—colors, green, yel-^lowish and black; 3,a wingless louse, en- -^^^T^larged (natural sizeindicated at 4)—color,green, yellow or brown. The wingless lice (Fig. 267, 3 and 4.) nre either dark brown19. 282 INSECTS INFESTING WHEAT. or dark green, with a reddish band across the abdomen at thebase of the honey tubes ; the antennas, knees and feet are black. The winged female (Fig. 267, 1,) is either dark green orbrown, with a row of black dots on each side of the body;the head and thorax are sometimes marked with black. The i^resent season, 1888, this species appeared in at leastten counties in this State, and in some instances did consider-able damage to wheat, etc., but were prevented from spreadingby the late rain, which also gave such impetus to the growthof the infested grain that in many fields the damage is scarcelyperceptible. On the 29th and 30th of April, and on the 1st,2d and 3d of May, un- usual flights of thewinged insects () were noticed inthis city (Sacramento)but they disappearedentirely with the ad-vent of the rain ofMay 4, 1883. Fig. 268.—GrainAphis (winged female?enlarged) — colors,green, yellowish and black. Remedies.—Use Nos. 56 and 20 Fig. 268. KALEVI
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