16 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 67 



Antennal tubercles prominent. Width of head through eyes, 

 0.464 mm. Beak reaching second coxae. Cornicles, 0.56 mm. long; 

 reticulate for 0.08 mm.; imbricated; widest diameter 0.064 mm., 

 smallest diameter 0.048 mm.; flange, 0.064 mm.; cauda 0.208 mm. 

 long, conical not constricted, three sets of lateral hairs. 



Pupa, alate viviparous female. — Antennal measurements: 



Cornicles 0.496 mm. long, flanged, slightly swollen. 



This species was first recorded from Corylus. Davidson recently 

 told me that he doubts if Corylus is an important food plant, it being 

 much more common on ninebark. 



Host plants. — Corylus 7'ostrata, Physocarpus capitatus. 



Distribution. — California. 



Cotypes. — Deposited in U. S. National Museum. Cat. No. 26854. 



AMPHOROPHORA COSMOPOLITANA new name 



Figs. 14-26 and 33-44 



Aphis lactucae Kaltenbach, Mongr. der Familien der Pflanzenlause, 1843, 

 p. 37. 



Aphis lactucae (Linnaeus) Walker, Ann. Nat. Hist., ser. 2, vol. 2, 1849, 

 p. 49. 



Rhopalosiphum ribis (Linnaeus), Koch, Die Pflanzenlause Aphiden, 1854, 

 p. 39. — BucKTON, British Aphides, vol. 2, 1879, p. 9. — Lowe, Geneva 

 Agr. Exp. Sta. Bull. 139, 1897, p. 663.— Van der Goot. Beit, zur Kennt. 

 der Hollandischen Blattlause, 1915, p. 146. 



Rhopalosiphum lactucae (Kaltenbach) Passerini, Aphididse Italicae, 1863, 

 p. 20. — Walker, The Zoologist, ser. 2, no. 53, 1870, p. 1997.— Ferrari, 

 Ann. del Mus. Civ. di Stor. Natur. di Genova, vol. 2, 1872, p. 60. — 

 BucKTON, British Aphides, vol. 2, 1879, p. 10. — Macchiati, Bull, della 

 Soc. Entom. Ital., vol. 14, 1892, p. 244. — Sanderson, Canad. Ent., vol. 

 33, 1901, p. 70. — Schouteden, Mem. de la Soc. Entom. de Belg., vol. 

 12, 1906, p. 236.— Davidson, Journ. Econ. Ent., 1910, p. 377.— Essig, 

 Pomona Journ. Ent., vol. 3, 1911, p. 463. — Theobald, Journ. Econ. 

 Biol., vol. 7, 1912, p. 105.— Patch, Maine Agr. Exp. Sta. Bull. 225, 1914, 

 p. 53. — MoRDViLKO, Fauna de la Russie, livr. 2, 1914, pp. 51, 58. — 

 Gillette and Bragg, Journ. Econ. Ent., vol. 8, 1915, p. 100. — Dobrov- 

 KiANSKY, A List of Aphids Found on Cultivated Plants in the Govern- 

 ment of Kharkov, Bull, on Pests of Agr. Khorkov, 1916.— Tullgren, 

 Meddelande fran Centrolanstalten for Jorsbrukforsch, Entomologiska 

 andelmingen, no. 27, 1916, p. 104. — Theobald, Fruit, Flower and Vege- 

 table Trades Journ. London, Oct. 13, 1917. — Essig, Univ. Cal. Pub. 

 Ent., vol. 1, no. 7, 1917, p. 331. — Quaintance and Baker, U. S. Dept. 



