70 



FRED. V. THEOBALD. 



narrow and acuminate, penultimate nearly as long, expanded. Legs pallid, except 

 tarsi, which are dusky except at extreme base ; tibiae with moderately long fine 

 hairs and a few on apex of femora. Cornicles long and very thin, about as long 

 as fourth antennal segment ; pale, apex dark. Cauda pale, rather long and thick, 

 bluntly elongate-triangular, with two hairs on each side, close together towards^ 

 the apex and a median sub-apical one ; finely spinose. Anal plate slightly darker, 

 spinose and with a few long hairs, broadly rounded. The thin cornicles project 

 to about the level of the cauda, which is very much wider and about half to less 

 than half their length. Body hairs strongly capitate, some with fan-shaped 

 extremities, whilst those on the anal plate and cauda are simple. The lateral 

 view shows a small tubercle above the cauda (fig. 4, B. c). Length, 1*8-2 mm. 



Food-plant. Chrysanthemum. 



Orange Free State : Bloemfontein, 18. v. 1914. 



Described from several mature apterous females. It resembles a typical Myzus, 

 but the median frontal projection places it in Van der Goot's genus Capitophorus ; 

 which appears to be undoubtedly well marked, but I find so many species between 

 the true Myzus and typical CapitopJiorus that it is doubtful if this genus should 

 be accepted, unless many others are to be initiated. 



Genus Cerciaphis, nov. 



Described from apterous viviparous females. 



Head flat to very slightly concave in front. Antennae shorter than body, of five 

 segments, the third about as long as 4+5 ; the fifth longer than fourth, its 

 flagellum only half the length of basal area. Eyes small. Cornicles small, cone- 

 shaped. Two thick, acuminate anal cerci, about as long as fourth segment of 

 antennae. Cauda small, flattened. Anal plate rounded. Proboscis rather short. 



Cerciaphis bougainvilleae, sp. nov. (fig. 5). 



Apterous viviparous female. 



Pale-coloured ; apices of antennae dusky. Eyes small and dark. Legs, cornicles, 

 anal plate, cauda and base of antennae of same colour as body. Head narrower 



Fig .5 Cerciaphis houganvilleae, sp. n. : A, head of apterous $ ; 

 a. 1, enlarged eye ; a. 2, and a. 3, sensoria ; B, posterior end ; 

 h. I, cerci ; c, cornicle ; d, cauda and anal plate ; C, cornicle. 



than body, which is more or less oval ; head flattened to shghtly concave in front, 

 integument strongly striate. Antennae shorter than body, of five segments, the 



