396 Dactylopiince. 



chitinized. Examples from Hakgala (elevation 6000 feet) are very weakly 

 chitinous. Antennae rudimentary ; reduced to two {figs. 5, 7) or three {fig. 6) 

 joints, with a few spiny hairs at the apex ; the junctions of the joints are often 

 very indistinct. Spiracles large and conspicuous ; with a strongly chitinous 

 cup-shaped orifice, in the sides of which are numerous ceriferous (parastigmatic) 

 pores {fig. 9). Derm with numerous circular pores, of two sizes, intermingled 

 with some minute spinelike hairs. The pores, which are sometimes (especially 

 in older examples) rendered more conspicuous by a thickened chitinous rim, 

 are more densely crowded on the marginal and post-abdominal regions, especially 

 on a transverse zone that lies across the anal pit. Anal ring sunk in a well- 

 defined pit {fig. 8), with six stout sette. In the original description of the species 

 {loc. cit.\ it is stated that the anal setae do not reach the margin of the body ; 

 but I find that this condition is not constant ; in many examples the anal setae 

 project slightly beyond the margin. Posterior margin of body {fig. 8) with a 

 few stout spiniform hairs. Length (under compression) i'5o to 3"5o mm. 

 Breadth vo to 3*0 mm. 



Male not observed in any stage. 



Newly hatched larva {fig. 10) oblong oval ; cream-coloured, the median 

 area tinged with purple. Very active. 



At the base of the stems and upon the rhizomes of various grasses. Usually 

 attended by ants. Pundaluoya ; Peradeniya ; Colombo ; Hakgala. Occurs 

 also in India. 



ANTONINA MARITIMA, nov. 

 (Plate CLXVI.) 



Sac of adult female pinkish ochreous to white ; loose and irregular in form. 



Adult female {fig. i) broadly oval to subcircular. Not densely chitinous, 

 except at the posterior extremity. Antenna {fig. 2) very small and rudimentary ; 

 consisting of a more or less globular free segment, with some longish stout 

 hairs at its extremity ; and an incomplete basal segment, irregular in outline 

 and roughly lunate in form, bearing three or four stout hairs. Spiracles large 

 and conspicuous, of the same form and structure as those of ^ . indica. Posterior 

 extremity {fig. 3) with marginal indentations indicating the terminal segments 

 and with some spiniform hairs both on the margin and on the submarginal area. 

 Anal ring with six stout setK, sunk in a rather narrow but deep pit. Derm 

 with numerous circular pores, more crowded towards the margins, especially on 

 the denser posterior segments where they are much larger and more conspi- 

 cuous. Length 175 to 3-0 mm. Breadth 1-25 to 2-50 mm. 



Other stages not observed. 



On the rhizomes of a species of Cyperus growing in sandy soil at high-water 

 mark on the sea-shore. Colombo. Received also from Coimbatore, S. India, 

 where it is said to occur in ' wet places ' (coll. T. V. Ramakrishna Aiyer). 



Differs from Antonina indica in the form of the posterior extremity which 

 is slightly incised at the junctions of the segments ; in the smaller anal ring 

 and narrower anal pit ; and in the still more rudimentary antennee, the terminal 

 hairs of which are longer and stouter. 



