488 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 3 



dant as to blacken them, not only stunting the growth, but often 

 completely killing these tender branches. 



M. middletoni Thos.: 8th Kept. St. Ent. 111. (1880), p. 99; Vickery, 

 Bull. U. S. Dept.Agr.,Bur. Ent.No.85, Pt. VI(1910),p. 113. I have 

 never taken this species. First reported by Thomas (?). 



*A. neillicB Oest.: Bull. Geol. and Nat. Hist. Surv. Minn., No. 4 

 (1887), p. 59. This species has not, I believe, been reported since 

 the original description. Professor Oestlund having found it in Minne- 

 sota on Neillia opulifolia, the common pine bark, now known as 

 Physocarpus (Spircea) opulifolius, a shrub much used in ornamental 

 plantings. Last year (1909) at Oak Park, 111., it became so abundant 

 that the leaves were badly curled and the shoots stunted or even 

 killed. The winged viviparous female is well characterized by the 

 very tuberculate antennse, brown wing veins, conspicuous black stigma 

 and dark brown to blackish body color. The sexes were first observed 

 October 9, and from the numbers of eggs already deposited they had 

 been there for several weeks. At this time the leaves and shoots 

 were covered with the aphids and dozens of pairs were observed in 

 copula. The sexes are interesting in that the male is wingless as is 

 also the oviparous female. These males are very small, brownish 

 red to black and the ocelli absent. The oviparous females are en- 

 tirely black. Eggs are laid by the hundreds in the crevices formed 

 by the leaf petiole and stem, and by the dormant buds. This spring 

 (1910) the eggs commenced hatching March 30, a few days after the 

 leaves appeared. 



'^A. nerii Fonsc: Thomas, 8th Kept. St. Ent. 111. (1880), p. 95. 

 It is probable that Thomas found the species which he questipnably 

 referred to nerii in Illinois, although he does not so state. The record 

 here is questioned. 



*A. persicce-niger Smith, E. F.: Gillette, Jour. Econ. Ent. Vol. I 

 (1908), p. 308, figs, and col. pi. A common pest of the peach. 



A. ponii De G.: Gillette, loc. cit. p. 303. A common and often 

 destructive pest of the apple in Illinois; also occasionally found 

 injuring the tender shoots of the flowering or Japanese quince {Cy- 

 donia japonica) in the Chicago parks. First reported by Fitch. 



*A. oenotherce Oestl.: Bull. Geol. and Nat. Hist. Surv. Minn., No. 

 4 (1887), p. 62. It is with some doubt that I record this species 

 from Illinois. Specimens collected in Chicago on CEnothera biennis 

 agree exactly with the description and habits as given by Oestlund 

 except in the following: In addition to the marginal row of black 

 spots the Chicago specimens have transverse dusky markings on 



^ The indications are that Thomas made his type collections in Illinois, but he 

 does not say positively. 



