THE SCALE INSECT GENUS ASTEROLECAXIUM 145 



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

 terminating about a pore's length from bases of apical setae, without quinque- 

 loeular and disk pores: dorsal surface with 8-shaped and disk pores less numer- 

 ous than in adult: ventral surface without pores in atrium of spiracle and with 

 2 in each spiracular row ; apex of abdomen as in adult but all setae °pproximat*-ly 

 one-third shorter. 



Larva. — Elliptical. 



Margin: With 2s 8 shaped pores, the anterior pair slightly larger than the 

 others, axes of the posterior 6 pairs transverse, of the others longitudinal; 3 

 pairs <>f setae anteriorly. 



Dorsal surface: 8-shaped p<uvs in a submediau row of 3-6 on each half of 

 body, the total ranging from 8-11, anterior pore slightly larger than the others, 

 all practically same size as. or slightly larger than, marginal pores of same 

 segments: disk pores in submarginal area and a few in lateral area. 



Ventral surface: Antennal setae. I. 1: IV. 1: V. 0; VI. 2 long, 2 stout, 3 

 fairly stout, 1 slender: antennal bases about two-fifths length of antenna apart; 

 beak' setae, li pairs apical. 1 pair rather near base: anterior spiracle with 1 

 trilocular and 1 quinquelocular pore or with 2 trilocular pores, posterior spiracle 

 with 2 trilocular pores; leg setae, coxa 4. femur 1 on inner margin near base 

 and 1 each on inner and outer margins near center, tarsus L' on inner and 1 

 on outer margin ; tibia one-half as long as tarsus ; 9 pairs of submarginal 

 8-shaped pores: apparently 7 pairs of submarginal minute setae on abdomen, 

 2 pairs of submarginal larger setae at anterior end ; 1 pair of setae between 

 antennae and mouth parts. 



Apex of abdomen : Notch minute : setae, apical 50 /x long, interapical 10.8 fi 

 long, inner ventral 2.5 n long, outer ventral 3.6 a long; anal ring with 6 setae 

 5.4-7.2 (i long. 



Test of male. — Elongate, 1.10 mm. long. 0.4 wide; convex dorsally, flat 

 ventrally : transparent, very thin: marginal filaments paler yellow than test, 

 longest at anterior end: dorsal filaments very pale yellow, fairly numerous, 

 slightly longer than marginal on< - 



Third-stage male. — Resembling adult female but smaller: margin with 8-shaped 

 pores terminating about a pore's length from bases of apical setae, quinque- 

 locular pores terminating around 20 8-shaped pores from the posterior pair of 

 8-shaped pores, usually 1 near each 8-shaped pore, disk pores apparently absent: 

 ventral surface with atrium of spiracle not enlarged. 2 or 3 quinquelocular 

 pores in each spiracular row. legs represented by o pairs of circular, sderotized. 

 slightly raised areas, each with a very small, straight, clawlike spine in center; 

 apex of abdomen as in adult female but apical seta broken and other setae 

 around one-fourth shorter. 



Data. — Described from unmounted specimens (paratypes) and the 

 following mounted material: Six females, 1 second-stage specimen. 10 

 larvae, and 2 third-stage males on bamboo. China, intercepted at New 

 York. Fitzgerald and Garrett. March 2."). 1932, holotype and para- 

 types; 1 female on bamboo. China, intercepted at Seattle. Wash.. E. I. 

 Smith, May 28, 1937, paratype. 



Allied to longuium and oblongum. 



ASTEROLIXANIUM PALLIDUM, I1CW species 



.Fi- -17. A-U ; pi. 9, Q) 



Habit. — Living on both surfaces of leaves. 



Test <>f female. — Longer than wide, anterior margin curved, tapering slightly 

 at posterior end; around 1.83 mm. long. 0.75 wide: dorsally strongly convex 

 at anterior end, not so high at posterior end; tlat ventrally: pale greenish 

 yellow, transparent, very thin, glassy: marginal filaments fragmentary, paler 

 in co'or than test, almost whitish: circular larval exit in dorsal surface at 

 margin. 



Adult female. — In shape similar to test, around 1.75 mm. hug. 0.65 wide. 



Margin: 8-shaped pores in a single row terminating slightly more than length 



of an apical seta from setal bases, posterior pores 7 u long and 4 wide, the 



others 9 m long and 4 wide, posterior 4 or 5 pores from a pore's width to three 



times a pore's length apart, the others usually less than a pore's length apart ; 



286720 — 11 10 



