Mr. F. Walker's Descriptions of Aphides. 41 



panded. The stamens are equal, hairy and slightly arched at 

 their origin, slender, smooth, and erect above ; the anthers con- 

 nive around the included stigma, and are oblong, cordate and 

 apiculated ; like those of Hyoscyamus, they ai'e articulated upon a 

 prominence of the dorsal connective. The ovarium is seated 

 upon a short hypogynous gland with two prominent lobes, op- 

 posite the furrows of the dissepiment ; these lobes remain after 

 the growth of the ovai'ium, but the gland itself soon disappears. 

 The stigma is capitate, somewhat 2-lobed, and covered with nu- 

 merous viscose papillae. I observed the fruit of a specimen in 

 M. de Boissier's herbarium {M. microcarpa from Malaga) ; here 

 the persistent calyx preserves the same form, the tube growing 

 to a diameter of 7 lines and a length of G lines, while the erect 

 lobes in addition are 9 lines long ; it is membranaceous, reticu- 

 lated, and incloses an oval berry crowned with the persistent 

 style, being 7 lines long and 5 or 6 lines in diameter ; the seeds 

 are flat, reniform, oval, and about li line long *. 



VI. — Descriptions o/ Aphides. By Francis Walker, F.L.S. 

 [Continued from vol. v. p. 396.] 



86. Aphis Viburni. 



Aphis Viburni, Fabr. Syst. Ent. 737. 18 ; Sp. ii. 386. 23 ; Ent. 

 Syst. iv. 216. 28; Syst. Rhyn. 298. 28 ; Gmel. ed. Syst. Nat. i. 

 2208; Sulz. pi. 11. fig. 1, 2; Scop. Ent. Cam. 396; Schrank, 

 Faun. Boic. ii. 111. 1203; Stew. El. ii. Ill; Enc. Meth. Ins. 

 pi. 115. fig. 9; Sir Oswald Mosley, Gard. Chrou. i. 684; Rus- 

 ticus, Ent. Mag. i. 218. 



Viburnifex, Amyot, Ann. Soc. Ent. Fr. 2"^^ serie, v. 478. 



This species feeds on Viburnum Opulus and V. lantana from 

 March till November. 



The viviparous wingless female. It is hatched in the beginning 

 of March, and is then linear, very small, and of a dull dark green 

 colour, paler beneath ; sometimes it has dark bands across the 

 back : the feelers and the legs are black, short, and stout : the 

 eyes, the mouth, and the nectaries are also black. The young 

 ones in the middle of April are pale green, spindle-shaped, 

 slightly convex, not shining : the feelers are hardly half the 

 length of the body ; their tips, the tip of the mouth, and the 

 eyes are black : the abdomen is pale orange around the base of 

 the nectaries, which are nearly one-sixth of the length of the 



* An analysis of the generic features of this genus will be given in one 

 of the supplementary plates to vol. ii. of the ' Illustr. South Amer. Plants.' 



