s 



ROBERT NEWSTEAD. 



circular, presenting the characteristics shown in the illustrations according to the 

 plane in which they are focussed. Marginal hairs very long ; one of the longest, 

 just behind the antennae, about one-fourth longer than the latter, or about half 



Fig. 3. Palaeococcus cajani, Newst., sp. n.. 9 ; a. antenna : fo, gland 



pores ; c, base of dermal hair. 



the width of the body ; these structures are readily deciduous and very few are 

 left intact in mounted material. 

 S. Nigeria : Agege, on pigeon pea, 1914 (Dr. W. A. Lamborn). 



Icerya nigroareolata, sp. now 



female, adult. Secretionary covering and appendages very like those of Icerya 

 aegyptiaca, Douglas, but the flocculent matter beneath the appendages is thicker. 

 When macerated in KOH the females assume a very elongate form, thus differing 

 materially from I. aegyptiaca, which is broadly ovate. Antennae of eleven segments ; 

 fourth the shortest and broader than long; eleventh longest and twice the length 

 of the tenth ; hairs very long and for the most part arranged in whorls, the longest 

 hairs (terminals) being slightly longer than the two last segments together; 

 formula 11 (2, 3) (7, 8, 9, 10), 1, 4, or 11 (2, 3, 7, 8, 9, 10), 1, 4. Legs robust; 

 hairs on the upper surface of the tibiae very long, the longest being equal in length 

 to the tarsi (fig. 4, a) ; digitules simple. Marginal hairs relatively short, the 

 longest arising from between the antennae and also at the anal extremity ; some 

 of the former about half the length of the antennae. Derm rather sparsely hirsute. 

 Pores or spinnerets (fig. 4, b) of two types : one large, with an inner hexagonal 



