THE SCALE INSECT GENUS ASTEROLECANIUM 195 



orange scarlet, transparent, strongly punctate; marginal filaments salmon, absent 

 from anterior and posterior ends ; elliptical larval exit in dorsal surface at margin. 



Adult female.— Lanceolate, sometimes slightly constricted near posterior end; 

 1-2 mm. long, 0.75 wide. 



Margin : 8-shaped pores in a single row on lateral margins, absent from both 

 ends of body, terminating about twice length of an apical seta from bases of 

 setae, 7-8 fi long and 4 wide, mostly a pore's width apart, but a pore's length apart 

 at ends of row ; trilocular pores in a single row between spiracular pore bands 

 and opposite about 20 8-shaped pores outside those bands, 1 near each 8-shaped 

 pore at ends of row, 2 near each 8-shaped pore elsewhere. 



Dorsal surface: Minute 8-shaped pores not observed; disk pores sparse; 

 tubular ducts in lateral area, 7.2 fi long. 



Ventral surface: Antenna a faintly sclerotized, minute, irregular area with 

 2 setae much shorter than diameter of antenna ; beak with 3 pairs of setae ; 

 spiracle with bar narrow, atrium enlarged and containing approximately 12 

 pores whose number of loculi is indeterminable; approximately 16 apparently 

 trilocular pores extending from spiracle to body margin in a single row ; multi- 

 locular pores, totaling 36-46 and with 10 loculi, in 4 complete and 4 Interrupted 

 rows, the posterior row with 6 or 7, each of other complete rows with 8-11, and 

 each of interrupted rows with 2; 2-4 dark-rimmed 8-shaped pores each side of 

 beak and a few on abdomen ; submarginal 8-shaped pores apparently in a single 

 row terminating anterior to bases of apical setae, about one-third as numerous 

 as marginal 8-shaped pores ; submarginal setae apparently in an interrupted row 

 terminating about the length of an apical seta from bases of apical setae; 2 

 pairs of setae in the posterior row of multilocular pores and 1 pair in each of 

 the other rows. 



Apex of abdomen : Lobes indicated ; setae, apical broken in all specimens at 

 hand except in 1 adult enclosed in an intermediate stage, 52 jj. long in that speci- 

 men, outer ventral 1 fx long ; anal opening apical, circular, its margin membranous. 



Second stage. — Resembling adult but smaller; margin with 8-shaped pores 

 present at anterior end of body and terminating around the length of an apical 

 seta from bases of apical setae, trilocular pores not meeting between spiracular 

 pore bands, present opposite about 16 8-shaped pores at anterior spiracular pore 

 band, and opposite about 25 8-shaped pores at posterior spiracular pore band; 

 dorsal surface without disk pores ; ventral surface with atrium of spiracle con- 

 taining 3 pores, 6 trilocular pores between spiracle and body margin, 1 dark- 

 rimmed 8-shaped pore each side of beak, 4 pairs of setae in median abdominal 

 area ; apex of abdomen as in adult. 



Larva . — Ell iptical. 



Margin: 8-shaped pores absent; a pair of minute setae on lateral margins 

 of each of the first 3 segments before the last ; eyespots usually invisible, barely 

 visible in a few of the specimens examined ; apparently 1 pair of setae at anterior 

 end. 



Dorsal surface: Minute 8-shaped pores apparently in a lateral row on each 

 half of body ; disk pores in submarginal area. 



Ventral surface: Antennal setae, I, 1 ; IV, 1 ; V, 1 ; VI, 4 long, 2 stout, 3 fairly 

 stout; antennal bases one-half length of antenna apart ; beak setae, 3 pairs apical, 

 1 pair basal ; spiracle with 1 trilocular and 1 quinquelocular pore ; leg setae, anterior 

 coxa 4 instead of 3 minute, other coxae apparently 3 instead of 2 minute, all 

 coxae with 4 long, femur 1 on inner margin near base and 1 on outer margin 

 near center, tarsus 1 each on inner and outer margins; tibia one-fifth as long as 

 tarsus; 9 pairs of submarginal 8-shaped pores; a disk pore entad of. and fairly 

 close to, each submarginal 8-shaped pore of the posterior 8 pairs: apparently 22 

 submarginal setae, on abdomen, thorax, and head; 1 pair of small and 3 pairs 

 of larger setae at anterior end between margin and mouth parts. 



Apex of abdomen : Setae, apical 40 n long, interapical 5.4 /x long, a pair 1 fi long 

 nearly anterior to apical on dorsal margin, and a pair 1 /x long anterior to inter- 

 apical on dorsal surface close to margin ; anal opening apical, an elongate incision. 

 its margin heavily sclerotized except at ventral end; anal tube funnel-shaped, 

 much larger at inner than at outer end, slightly sclerotized; anal ring sclerotized. 



Data. — Redescribed from specimens (6 females. 2 second-stage 

 specimens, and 24 larvae, mounted) on palm. Mauritius, from E. E. 

 Green. 



This is the only known species of Asterolecan'nnn which is red. and 

 one of the few whose larvae lack marginal 8-shaped pores. 



