NEW CEYLON COCCID^. 117 



On stems of Vanda spathulata, Peradeniya, Ceylon, September 1914. 

 This insect falls very near L. beckii, but has several points of difference 

 which are indicated in the course of the description. 



Leucaspis limonice, sp. no v. 



Female scale elongate, narrow, dark-brown, consisting chiefly of the 

 large second exuvium, There is occasionally to be seen a small mass of 

 white wax cephalad of the first exuvium, and a narrow fringe at the 

 posterior end. The dorsum of the second exuvium is sometimes lightly 

 dusted with white wax. There is a transverse line of weakness in the first 

 exuvium at a point about two-fifths of its length from the anterior end. 



Male scale with exuvium dark -brown and a white secretion of much the 

 same dimensions as the second exuvium in the female scale. 



Adult female several times longer than broad, greenish, abdominal 

 segments not laterally produced. 



Antenna a comparatively large tubercle sometimes tapering towards apex 

 and bearing three long straight hairs, the mesal and lateral ones of each 

 group of equal length and longer than the middle one ; situated cephalad 

 of the mouth parts and about four times their width apart. 



Anterior spericles with about eight parastigmatio pores in a double row 

 running cephalad from the spiracle ; posterior spiracles without such pores. 

 A few sharp, triangular processes situated round the cephalic margin. 

 Mouth setee long. Pygidium hyaline. Four conical lobes, tapering from 

 base, much longer than broad pointed at apex ; median lobes slightly 

 larger than the second. A pair of long, narrow apically expanded pectinse 

 between the median lobes, a similar part between first and second lobes 

 and two or three laterad of the second lobes. Thereafter two short, broad, 

 pectinee followed by a series of about eight truncate plates, longer than 

 broad, each traversed by a gland duct. There is a longitudinal row of 

 broad, cone-shaped processes running along body laterad of the mouth 

 parts (these are probably marginal, their apparent position being due to a 

 longitudinal folding of the body). Dorsal pores small and scattered. Anus 

 near base of pygidium. Circumgenital pores in an arch, the caudo-lateral 

 group being separated from the rest ; there are from twenty-six to thirty- 

 three in the median group and nine to thirteen in the caudo-lateral. 

 Latero-cephalad of the main groups on each side are two groups of four 

 (or two) each. 



Second exuvium with two pairs of prominent lobes projecting far into 

 the pygidium, with broad pectinee and gland-pores between them. Along 

 the sides of the body are situated numerous, broad, cone-shaped processes 

 deeply concave at the apex and one or two more elongate, pectinge-like 

 processes. 



First exuvium with a single pair of lobes ; mesal of each a seta and a 

 gland-pore and between the two gland-pores two short precesses irregularly 

 serrate at apex. 



On leaves and petioles of Limonia alata, Peradeniya, Ceylon, August 1914. 



This insect resembles Leucaspis cockerelli, (de Charm) but the lobes are of 

 a different shape and are not notched, while the pectinee are longer 

 (extending well beyond the lobes) and the median and cephalo-lateral 

 groups of circumgenital pores form a continuous series. 



Aulacasjns uncinati, n. sp. 



Scale of female not much longer than broad ; secretion white ; exuviee 

 reddish-brown, situated at one side. 



Extreme apex of pygidium somewhat truncate. Three pairs of lobes. 

 Median lobes hyaline, not united at the base, expanded caudally and 

 slightly divergent towards the apex ; margins slightly indented ; a slight 



