THE SCALE IXSECT GENUS ASTEROLECAXIUM 77 



Dorsal surface: Minute 8-shaped pores fairly numerous; disk pores rather 

 sparse: tubular ducts 40 /* long; dorsal tubes present. 



Ventral surface: Antenna dome-shaped, slightly sunken in dorm, with 2 setae 

 longer than diameter of antenna : beak without setae but with 4 clear areas 

 at tip : spiracular bar broad, atrium slightly enlarged but without pores ; 11-20 

 quinquelocular pores extending from spiracle to body margin in an irregularly 

 single to triple row; multilocular pores, totaling 43-59 and having 7-10 loculi, 

 arranged in 4 complete and 2 or 3 interrupted rows, the posterior row with 

 7-11. each of the next 3 with 10-15, each of the interrupted rows with 1-5; 

 3 or 4 dark-rimmed 8-shaped pores each side of beak, a few scattered on anterior 

 end. and a few arranged in 4 or 5 transverse rows on abdomen : submarginal 

 8-shaped pores in a single row terminating near the posterior pair of marginal 

 8-shaped pores and usually about as numerous as marginal 8-shaped pores : 

 5 pairs of submarginal setae on abdomen, the posterior pair near the third or 

 fourth pore from the posterior end of the row of marginal 8-shaped pores ; 

 1 pair of setae in each of the posterior 3 rows of multilocular pores. 



Apex of abdomen: Notch present: lobes indicated: setae, apical 80 u long, 

 Interapical 10-12 n long, inner ventral 6-8 n long, outer ventral 8 fi long; anal 

 ring with 6 setae 32-36 m long and with an inner row of 6 and an outer row of 

 14 pores, apparently tending toward division on dorsal side. 



Second stage. — Resembling adult, but much smaller : margin without quin- 

 quelocular pores : ventral surface with 2 quinquelocular pores between spiracle 

 and body margin. 1 pair of setae observed in median area; apex of abdomen 

 as in adult but setae one-fourth to one-sixth shorter. 



Larva. — Elliptical. 



Margin : With 2S 8-shaped pores, the posterior 6 pairs slightly smaller than 

 the next 7. anterior pair slightly the largest, axes of all longitudinal ; 3 nairs 

 of setae anteriorly. 



Dorsal surface: 8-shaped pores in a submedian row of 1-7 (usually 4 or 5) 

 on each half of body, and totaling 2-10 (usually 9 or 10). anterior pore two- 

 thirds size of marginal pores of same segment and about one-fourth larger 

 than the other dorsal pores : disk pores fairly close to marginal 8-shaped pores. 



Ventral surface : Antennal setae. I. 2 ; IV, 1 ; V, 2 : VI. 2 long, 2 stout. 3 

 fairly stout. 1 slender: bases of antennae one-third length of antenna apart; 

 beak setae, 2 pairs apical. 1 pair median ; anterior spiracle with 1 trilocular 

 pore, posterior spiracle with 1 trilocular and 1 quinquelocular pore ; leg setae. 

 coxa 4, femur 1 on inner margin near base and 1 each on inner and outer 

 margins near center, tarsus 2 on inner and 1 on outer margin: tibia around 

 one-half length of tarsus ; 9 pairs of submarginal 8-shaped pores ; 8 pairs of 

 submarginal minute setae, on abdomen and thorax, 3 pairs of submarginal larger 

 setae at anterior end : 2 pairs of setae between antennae and mouth parts. 



Apex of abdomen : Setae, apical 55 \i long, interapical 9 /x long, inner ventral 

 7.2 fj. long, outer ventral 7.2 n long: anal ring with 6 setae, each about IS /i long, 

 with an inner row of 6 and an outer row of 12 pores, divided on dorsal side 

 and tending toward division on ventral. 



Test of male. — Nearly elliptical, posterior end narrowed, a notch in posterior 

 margin ; 1.4 mm. long, 0.75 wide : flat dorsally with a faint longitudinal median 

 carina, flat or slightly convex ventrally: yellow, transparent, thin, punctate; 

 marginal filaments pale yellow, longest at anterior end. 



Male nymph. — Antenna 10-segmented ; 5 segments of abdomen each with a 

 pair of setae dorsally on lateral margin and at least 2 segments each with a 

 pair of setae in ventral lateral area ; lobes well developed, each with 1 long 

 and 2 short setae. 



Third-stave male. — Resembling second stage: ventral surface with 3-5 quin- 

 quelocular pores in each spiracular row. legs represented by 3 pairs of rather 

 small claws, 3 pairs of setae in median abdominal region. 



Data. — Redescribed from 1 mounted second-stage specimen, Ceylon, 

 Maskell Collection Xo. 353; unmounted material. 1 mounted female. 

 Ceylon. E. E. Green Collection and Cockerell Collection: unmounted 

 material, 2 mounted females. 13 mounted larvae. 1 mounted male 

 nymph, and 1 mounted third-stage male on Arundinaria sp., Punda- 

 luoya. Ceylon. E. E. Green Collection. March 18, 1895. type. 



Larvae of this species are unusual in having two setae on the fifth 

 segment of the antenna. 



