58 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 67 



AMPHOROPHORA RUBICOLA (Oestlund) 



Figs. 144-149, 193 



Macrosiphum rubicola Oestlund, Minn. St. Geol. Rept. no. 14, 1886, p. 27; 

 Minn. Geol. and Nat. Hist. Surv. Bull. 4, 1887, p. 78. — Williams, Univ. 

 Nebr. Spec. Bull. 1, 1891, p. 22.— Huntek, Iowa Agr. Exp. Sta. Bull. 60, 

 1901, p. 110.— Patch, Maine Agr. Exp. Sta. Bull. 233, 1914, p. 270. 



Nectar osi-phon rubicola (Oestlund) Kirkaldy, Canad. Ent., 1906, p. 12. — ■ 

 Sanborn, Kans. Univ. Sci. Bull., vol. 3, no. 8, 1906, p. 269. — Wilson, 

 Ann. Ent. Soc. Amer., vol. 3, 1910, p. 318; Proc. Brit. Colum. Ent. Soc, 

 vol. 5, 1915, p. 83. — Wilson and Vickery, Trans. Wis. Acad. Sci. Arts 

 and Letters, vol. 19, pt. 1, 1918, p. 149.— Swain, Univ. Cal. Pub. Tech. 

 Bull. Agr. Exp. Sta. Ent., vol. 3, no. 1, 1919, p. 77.— Patch, Conn. St. 

 Geol. and Nat. Hist. Surv. Bull., no. 34, 1923, p. 310. 



Nectar osi-phum rubicola (Oestlund) Essig, Univ. Cal. Pub. Tech. Bull. Agr. 

 Exp. Sta. Ent., vol. 1, no. 7, 1917, p. 327.— Shin ji. Psyche, vol. 24, no. 3, 

 1917, p. 84. 



Amphorophora rubicola (Oestlund) Davidson, Journ. Econ. Ent., 1914, p. 

 136. 



This large species on Ruhus is rather close in appearance to two 

 other species on Rubus which are described in this paper as davidsoni 

 and maxima. It may be distinguished from them by the large 

 dusky spot on the tips of the wings and by the dark colored antennae, 

 segment III of which is conspicuously shorter than the cornicle and 

 has 20-30 sensoria. 



Alate viviparous female. — Antennae about as long as body, dark 

 colored, except base of III, hairs conspicuous, about as long as width 

 of segment. III with 20-30 sensoria scattered over nearly the entire 

 length and not in a straight row. Antennal tubercles fairly large. 

 Beak extending usually to third coxae. In some specimens there are 

 two tubercles showing on the posterior, dorsal portion of the head. 

 The prothorax has two dorsal tubercles, and a lateral tubercle on 

 each side. The front wings have a dusky spot at the tips. This is 

 darker in some specimens than in others. The abdomen has several 

 lateral tubercles, one specimen showing five in front of the cornicle 

 and one caudad of the cornicle. Hairs are present around each 

 tubercle. The cornicles are long, curved, conspicuously swollen and 

 distinctly reticulated. The cauda is long, slender and constricted, 

 with 5-6 lateral hairs. 



Antennal measurements 



