226 CHAS. K. BRAIN. 



central, but in many specimens they are pushed to one side, near, or at the margin. 

 The 1st exuviae are paler than the 2nd and situated at the extreme margin or slightly 

 away from the second. 



Puparium of $ white, strongly tricarinate, with yellow exuviae. 

 Body of adult S> elongate, almost twice as long as its greatest width, Anterior 

 part rather more heavily chitinised than the abdominal region and the pygidium. 

 Front margin flatly rounded, terminating on each side with a rounded prominence 

 at the level of the mouth-parts. The three free abdominal segments are broadly 

 rounded and well defined at the margins. The pygidium is at first rounded and then 

 tapers suddenly and straightly to the median lobes. Circumgenital glands in 

 5 large groups : — 



31 

 55 55 



39 39 



Formula : L v G, 11 2 , P 3 , G, 11 4 , P 5 , GG, -, P 6 , G. 

 Habitat : On Melia azedarach, Natal (Fuller), and Pretoria, collected by the writer 

 July 1915. On Ricinns sp., Durban ; collected by A. Kelly, 1910. 

 Collection No. : 164. 



130. Diaspis (Aulacaspis) pentagona, Targ. (Plate xv, fig. 145). 



Diaspis pentagona, Targ., Rev. di Bacch., No. 11, 1885. 



Diaspis amygdali, Tryon, Rept. Insect and Fungus Pests, p. 89, 1889. 



Diaspis lanatus, Morg. & Ckll., Jl. Inst. Jamaica, i, p. 137, 1892. 



Diaspis pafelltformis, Craw, Fifth Bien. Rept. Cal. Bd. Hort., p. 39, 1896. 



Diaspis amygdali, Green, Cocc. Ceylon, i, p. 87, 1896. 



Diaspis pentagona, Newst., Mon. Brit. Cocc, i, p. 173, 1901. 



Diaspis amygdali, Fuller, First Rept. Ent. Natal, p. 102, 1901. 



Scale of adult $ about 2 to 2*75 mm. in diameter, nearly circular to long, + 

 pyriform, flatfish to convex or conical, white to greyish, the colour being chiefly due 

 to the admixture of epidermal tissues of the host-plant, with exuviae subcentral 

 to near one margin. The exuviae are orange-yellow to reddish brown. In young 

 specimens the form of the scale is often elongate, with the exuviae at or near one 

 extremity, and this form is retained in a few adult insects. The ventral scale is very 

 thin and delicate. 



Puparium of $ elongate, white, faintly tricarinate or feebly keeled, with pale 

 exuviae. 



Adult $ and ova yellowish to bright pink according to host-plant, usually pink. 

 Body of adult $ short egg-shaped or broad pear-shaped, thin, hyaline. The lobes 

 are heavily chitinised and yellow. The abdominal segments are not greatly produced 

 and are broadly rounded. The antennae are placed close together and near the 

 anterior margin. The antenna! tubercles are bi-lobed and each bears a long curved 

 seta. L x large, somewhat triangular with roimded apex, both margins + deeply 

 crenulate ; L 2 composed of two lobules, the inner one longer than wide, almost 

 parallel-sided, with roimded apex, the outer lobules small, + triangular ; L 3 composed 



>ul 



