Annual report of the Maine Agricultural Experiment Station . m.; IV, mm. Fig. 181. Tetraneura graminis, antenna I-IV of true female, previousto molt. Slide (10-4-92) lent by F. A. Sirrine. Fig. 182. Distal tipof leg of true female previous to molt, showing capitate hairs. Slide(io-4-92) lent by F. A. Sirrine. Fig. 183. Antenna I-V of larva onroots of Leersia virginica. Slide (I. A. C. 9-30-92). Slide lent by Sirrine. Fig. 184. Tetranetira graminis {colophoidea). Normal venation.*1987 fore wings out of 20GO examined had this venation. Figs. 185-197. Tetraneura graminis {colophoidea).
Annual report of the Maine Agricultural Experiment Station . m.; IV, mm. Fig. 181. Tetraneura graminis, antenna I-IV of true female, previousto molt. Slide (10-4-92) lent by F. A. Sirrine. Fig. 182. Distal tipof leg of true female previous to molt, showing capitate hairs. Slide(io-4-92) lent by F. A. Sirrine. Fig. 183. Antenna I-V of larva onroots of Leersia virginica. Slide (I. A. C. 9-30-92). Slide lent by Sirrine. Fig. 184. Tetranetira graminis {colophoidea). Normal venation.*1987 fore wings out of 20GO examined had this venation. Figs. 185-197. Tetraneura graminis {colophoidea). Abnormal vena-tion. The 13 wings out of 2000 examined which deviated from the nor-mal. In even these 13 cases the wing on one side was normal. Note: Figures 164 to 172 were drawn by Miss Charlotte M. were taken by Mr. R. Hammond. *For Comstock-Needham terminology of Aphid wings the readeris referred to Homologies of the Wing Veins of Aphididae, Psyllidae,Aleurodidae and Coccidae. Annals Entomological Society of II, No. 2. 126. ^
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear