THE SCALE INSECT GENUS ASTEROLECAXIUM 1 ] 5 



to horishae), lie was. in the writer's opinion, correct in elevating the 

 name to specific rank. 



Habit. — Living on bark, in shallow pits. 



Test of female. — Circular. 0.8-1.10 mm. in diameter, posterior end slightly 

 produced: slightly convex dorsally, sometimes with faint transverse striatums, 



strongly convex ventrally; greenish or brownish yellow, semitransparent, shiny; 



marginal filaments pale pinkish: elliptical larval exit in margin. 



Adult female. — Nearly circular, 0.75-1 mm. in diameter, posterior end slightly 

 produced and rounded or truncate. 



Margin: 8-shaped pores in a single row terminating about one-half length 

 of apical seta from seta! bases, posterior pores (J-7 /j. long and 4 wide, the others 

 8-9 /j. long and 6 wide, a pore's width to length apart; cpiinquelocular pores in 

 a row which is continued across apex of abdomen between apical setae, Lhe row 

 single on posterior third, double elsewhere, as numerous as the 8-shaped pores 

 where the row is single, elsewhere at least twice as numerous. 



Dorsal surface: Minute 8-shaped pores numerous: di.^k pores scattered, mostly 

 in lateral area, not numerous : tubular ducts 24 y. long. 



Ventral surface : Antenna conical, with 2 setae as long as diameter of antenna ; 

 beak with 2 pairs of setae : spiracle with bar expanded at inner end. and with 

 5 or 6 quinquelocular pores in a semicircular group outside opening, 20-25 

 similar pores extending from group to body margin in an irregular single or 

 double row : multilocular pores, with 10 loculi. arranged in 4 complete rows, 

 posterior row with 10 pores, each of the others with 6 or 8 : 25-30 dark-rimmed 

 8-shaped pores surrounding mouth parts, and a few posterior to beak in rather 

 indefinite transverse rows ; submarginal 8-shaped pores in a single row terminating 

 near the posterior row of multilocular pores, about one-half as numerous as 

 marginal 8-shaped pores; submarginal setae in a complete row terminating near 

 the posterior pair of marginal 8-shaped pores ; 2 pairs of setae in the posterior 

 row. and 1 pair in each of the other rows of multilocular pores. 



Apex of abdomen: Setae, apical around 64 m long, interapical 5 m long, outer 

 ventral 4 /x long : anal opening ventral, fairly close to body margin, nearly 

 circular, its margin sclerotized and with 2 setae, each around 3 m long, on anterior 

 edge. 



Larva. — Ovoid elliptical. 



Margin: With 28 8-shaped pores, anterior pores slightly larger than posterior. 

 axes of all longitudinal : 2 pairs of setae at anterior end. 



Dorsal surface : 8-shaped pores in a submedian and a lateral row of 4-8 each, 

 on each half of body, the total number usually ranging from 22-28, the anterior 

 pore of each row tending to be larger than the posterior pore and about the 

 size of the posterior marginal pore : disk pores between submedian and lateral 

 8-shaped pores: a pair of minute setae near anterior submedian pair of pores. 



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

 stout. 2 slender; antennal bases two-thirds length of antenna apart: beak setae. 

 2 pairs apical. 1 pair median; spiracle with 1 trilocular and 1 quinquelocular 

 pore: leg setae, coxa 3. femur 1 on inner margin near base, tarsus 1 each on 

 inner and outer margins: tibia one-fourth as long as tarsus: 1) pairs of sub- 

 marginal 8-shaped pores: 7 pairs of submarginal minute setae on abdomen. 1 pair 

 of submarginal larger setae at anterior end: 2 pairs of setae between antennae 

 and mouth parts. 



Apex of abdomen: Lobes indicated; setae, apical about 66 m long, interapical 

 10.8-12 ix long, sometimes an additional seta 3.6-5.4 ix long mesad of interapical 

 on 1 side of body, rarely such a seta on each side, outer ventral 7 /j. long: anal 

 opening ventral; anal tube very short, membranous: anal ring lightly sclerotized. 

 with 2 setae about 5.2 /j. long. 



Data. — Redeseribed from unmounted material and the following 

 mounted specimens: Two females on Quercus glamdulifera, Japan, 

 received in 1900, from type series: 2 females on Quercus >\>.. Koshiu, 

 Chosen. S. Nakayama, March 9. 1929: 7 females and 16 larvae on 

 Quercus glamduiifera, Chosen. Tabashi and Nakayama collectors. 

 March 10, 1929. 



