352 Eriococcince. 



median size arranged on the dorsum as shown at fig. 4, disposed in median, 

 subdorsal, and marginal series, with a few smaller hair-like interstitial spines. 

 The median series is double, consisting of paired spines ; the subdorsal series 

 is irregular, and compound on the thoracic area ; the marginal series some- 

 what irregular and more crowded at the anterior extremity. There are 

 numerous small circular pores distributed over the surface of the body. 

 Antenna seven-jointed, third or fourth longest {figs. 6, 7). The following 

 variations of antennal formula have been observed : 4, 3, 7, 2, 5, 6 ; 4, (3, 7), 2, 

 (5, 6) ; 4, 3, 7, 2, 6, 5 ; 4, 3, 2, 7, 6, 5 ; 3, 4, 7, 2, (5, 6) ; 3, 4, 7, (2, 5), 6 ; 3, (4, 7), 2, 

 (5, 6) (The first joint being irregular in form, and usually distorted by pressure, 

 is not included in the formula?). Limbs well developed, moderately large ; 

 tarsus slightly longer than tibia (fig. 8) ; claw strongly curved, simple ; ungual, 

 and tarsal digitules normal. Anal lobes prominent, usually obliquely trun- 

 cate, with a stout seta at apex of each, two stout spines on the inner side, and 

 one at the base of the outer side {fig. 5). Anal ring with eight stout longish 

 setae. 



Adult male {fig. 9) purplish brown, pruinose, except on apodema and 

 scutellum, which remain smooth and polished. Apodema dark brown. 

 Ocelli four, the upper pair small and widely separate, the pair on the under 

 surface large and contiguous. Rudimentary eyes minute, lateral. Antenna 

 ten-jointed, each joint (except the first) bearing several slender knobbed hairs. 

 Caudal filaments opaque white, as long as the body of the insect. Length 

 I mm. 



On the under surface of the leaves of a species of grass ; the females 

 usually clustered near the base of the leaf, the male puparia more widely 

 scattered {fig. i). Pundaluoya, Peradeniya, Kaduganawa, Kotmali. 



The insect may possibly be equivalent to E. graminis of Maskell (from 

 China and Japan), but the published description of that species is inadequate, 

 and I have been unable to obtain actual specimens for comparison. If 

 Maskell's figures are correct, the marginal spines of graminis are propor- 

 tionately much larger than those of tenuis. E. pal/idtis, with which Maskell 

 compares his species, differs widely from tenuis. 



ERIOCOCCUS RHODOMYRTI, nov. 

 (Plate CXXXVIIL) 



Ovisac of female white {fig. 5), sometimes slightly ochreous ; oblong oval, 

 length approximately twice the breadth ; moderately convex. Length 2-50 mm. 



Male puparium {fig. 4) similar in character, but smaller. Length 1-25 to 

 I "50 mm. 



Adult female of normal form. Principal dorsal spines of medium size ; 

 bluntly pointed ; disposed in median, subdorsal, and marginal series {fig. 8) ; 

 the median series double ; an irregular series interposed on the thoracic area 

 between the subdorsal and marginal series ; marginal series rather irregular. 

 There are numerous smaller interstitial spines and a few small circular ceri- 

 ferous pores. Antenna ( fig. 9) rather short and stout ; seven-jointed, the formula 



