. Bulletin. Natural history; Natural history. The Plant Lke, oh Ai-hiidae, oe Illinois 223 four slides: Slide No. 7704 has been designated as the lectotypic slide, and Slides Nos. 7705-7707 as parati/pic slides. Data associated with the lectotypic and paratypic slides, alate and apterous viviparous females, are as follows: Carbondale, Illinois, June 20, 1S77, collected by Tliomas on Verno^iia fasciculaia. Data associated with our viviparous specimens are as follows: Carbon- dale (June 4), Morton (July 22), Urbana (July 23), 192S; Cairo (June 22), Elizabethtown (June 20), Hardin (June 25), Newt
. Bulletin. Natural history; Natural history. The Plant Lke, oh Ai-hiidae, oe Illinois 223 four slides: Slide No. 7704 has been designated as the lectotypic slide, and Slides Nos. 7705-7707 as parati/pic slides. Data associated with the lectotypic and paratypic slides, alate and apterous viviparous females, are as follows: Carbondale, Illinois, June 20, 1S77, collected by Tliomas on Verno^iia fasciculaia. Data associated with our viviparous specimens are as follows: Carbon- dale (June 4), Morton (July 22), Urbana (July 23), 192S; Cairo (June 22), Elizabethtown (June 20), Hardin (June 25), Newton (June 17), Olney (June IS), Rock Island (July 7), Urbana (August 21), 1929. Collected on Eupator- ium purpureum var. maculatum. Hi'lenmm autumnale, and Vcrnoriia Jusciculala. APHIS VIBURNICOLA Gillette Pig. 28 Aphis viinrnicola Gillette, Entomological News, Vol. XX, No. 6, June, 1909, p. 2S0. Aphis z'ibuniicola Gillette was first reported from Illinois by Davis ( lOlOe). Our records indicate that it is very widely distributed in Illinois. This species over-winters on snowball ( J'ibitniiiiii) and in. Fig. 28. Pseudo-galls on the snowball, Viburnum Opulus var. Americana, started by Aphis viburnicola Gillette, later occupied by Aphis rumicis Linnaeus and Aphis viburjiiphila Patch: Urbana, June 10, 1929. Normal foliage on left and infested foliage on right. early spring causes the leaves to curl and form pseudo-galls ( Fig. 2A). After a short time the species leaves its primary host for an unknown one and then returns again in autumn, (^jillette ( liKiDc) has given de- tailed descriptions of all the forms found on the winter host. Data associated with our viviparous specimens are as follows: Antioch (June 15), Decatur (Oct. 20), Urbana (May 17), 1928; Lewistown (May 4), Macomb (May 4), Rantoul (April 24), Springfield (May 2), Urbana (April 16), 1929; Carbondale (April 17), Effingham (Nov. 13), Lawrenceville (April 14), Metropolis (April 17), Urbana (Oct. 20, Dec. 2(1), 19:?0. S
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