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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 67 



Apterous viviparous female. — Antennae about one-third longer than 

 body, imbricated, basal segments light colored, distal part of V and 

 all of VI dark with 1-7 sensoria, hairs capitate and very conspicuous, 

 especiall}^ on III. Antennal tuvercles very prominent. Beak reaching 

 beyond second coxae. A small prothoracic tubercle showing on some 

 specimens. Cornicles long, slender, slightly swollen, imbricated, tip 

 dark and reticulated. Cauda long, conical, scarcely constricted, 

 three sets of lateral hairs. Measurements as follows: 



Specimen No. 2 is smaller, has four hairs on cauda instead of three, 

 and is somewhat different in other ways. Since it was taken from 

 the same host, I hesitate to describe it as new until more is known of it. 



Host. — Rhododendron rhodora. 



Distribution. — Orono, Maine. 



Cotypes. — Returned to Maine Agricultural Experiment Station. 



AMPHOROPHORA RUBI (Kaltenbach) 



Figs. 150-157, and 190 



Aphis ruhi Kaltenbach, Monographie der Pflanzenlause, 1843, p. 24. 



SiphonoTphora ruhi (Kaltenbach) Koch, Die Pflanzenlause Aphiden, 1854, 

 p. 191. — BucKTON, British Aphides, vol. 1, 1876, p. 140. — Thomas, 8th 

 Rept. 111. St. Ent., 1880, p. 64. — Lichtenstein, Les Pucerous, Mono- 

 graphie des Aphidiens, 1885, p. 40. — Williams, Univ. Nebr. Spec. Bull. 1, 

 1891, p. 7.— Schouteden, Ann. de la Soc. Ent. Belg., vol. 44, 1900, p. 116.— 

 Williams, Kans. Univ. Studies, vol. 10, no. 2, 1910, p. 84. 



Nectarophora ruhi (Kaltenbach) Oestlund, Minn. Geol. and Nat. Hist. 

 Surv. Bull. 4, 1887, p. 87.— Hunter, Iowa Agr. Exp. Sta. Bull. 60, pp. 

 116, 130. 



