66 MISC. PUBLICATION 42 4, U. S. DEPT. OF AGRICULTURE 



Apex of abdomen: Notch present; setae, apical 30-36 n long, one 7-9 /* long 

 presumably interapical and normally inside the apical, but sometimes actually 

 outside apical, inner ventral 5.4-7.2 \x long, outer ventral 5.4-7.2 n long ; anal ring 

 with 2 setae 27-30 /jl long and four 32-36 and with an inner row of 6 and an outer 

 row of 16 or 17 pores, divided on dorsal side; ventral surface of apex slightly 

 sclerotized close to margin and median line. 



Larva. — Elongate elliptical. 



Margin : With 28 8-shaped pores, the anterior pair slightly larger than the 

 others, axes of all longitudinal ; 3 pairs of setae anteriorly. 



Dorsal surface : 8-shaped pores in a submedian row of 1-5 on each half of 

 body, a total of 6 or 7 observed, the anterior pore the largest and about the same 

 size as marginal pores of same segment, the others around three-fourths as large 

 as marginal pores of same segments ; disk pores sparse, in submarginal area. 



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

 stout, 1 slender ; antennal bases about one-half length of antenna apart ; beak 

 setae, 2 pairs apical, 1 pair median ; spiracle with 1 trilocular 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 one-half as 

 long as tarsus ; 9 pairs of submarginal 8-shaped pores ; apparently 6 pairs of 

 submarginal minute setae on abdomen, 3 pairs of submarginal larger setae at 

 anterior end ; 1 pair of setae between antennae and mouth parts. 



Apex of abdomen : Notch present ; setae, apical 63 m long, interapical 11 /x long, 

 inner ventral 3.6 /j. long, outer ventral 3.6 /j- long ; anal ring with 6 setae 16-18 \l 

 long, also with an inner row of 6 and an outer row of 10-12 pores, divided on 

 dorsal side. 



Data. — Described from 2 mounted females on Bambusa sp., Kowloon, 

 China. A. Koebele, February 25, 1900, paratypes ; 4 mounted females 

 on bamboo, Foochow, China, C. R. Kellogg, March 1, 1919, paratypes; 

 1 mounted female on 'Bambusa flexuosa, Chekiang, China, C. V. Chiao, 

 April 1925, U. S. N. H., paratype; unmounted material, 2 mounted 

 females, and 11 mounted larvae on PhyUostachys sp., Ho Ch'uen, 

 Kaang Shek, Ts'uen Fong, Kwangtung, China, F. A. McClure, April 

 25, 1926, holotype and paratypes. 



Most closely related to fusv/m, svbdolum, and vulgare. The com- 

 bined number and arrangement of spiracular quinquelocular pores in 

 chinue is unusual. 



Asterolecanium circulare, new species 



(Fig. 14, J-Q; pi. 7, T) 



Habit. — Living on the upper surface of leaves. 



Test of female. — Circular or slightly longer than wide, posterior end slightlv 

 produced and upturned ; approximately 0.65-0.85 mm. in diameter ; strongly 

 convex dorsally, flat ventrally ; very pale greenish yellow, transparent, thin, 

 smooth ; marginal filaments bright salmon or whitish, not observed at posterior 

 end; elliptical larval exit in margin. 



Adult female. — Practically circular, 0.55-0.8 mm. in diameter. 



Margin : 8-shaped pores in a single row terminating one and a half to twice 

 length of apical seta from setal bases, posterior pores 9 n long and 4 wide, 

 the others about 11 fi long and 4.5 wide, nearly contiguous ; quinquelocular 

 pores in a single row terminating at the posterior or penultimate pair of 8-shaped 

 pores, as numerous as, or slightly more numerous than, 8-shaped pores. 



Dorsal surface : Minute 8-shaped pores very sparse, a few on abdomen ; disk 

 pores sparse ; tubular ducts 28 n long ; dorsal tubes present. 



Ventral surface: Antenna short, sometimes very rough, with 2 setae longer 

 than diameter of antenna : 3 or 4 quinquelocular pores between antenna and 

 margin; beak without setae; spiracular bar fairly broad; 8-14 quinquelocular 

 pores extending from spiracle to body margin in a single row ; 1 or 2 dark- 

 rimmed 8-shaped pores each side of beak, a few in lateral area of abdomen, and 

 a few in 1 or 2 transverse rows anterior to genital opening ; submarginal 8-shaped 

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

 pores, about one-half as numerous as marginal 8-shaped pores ; 5 pairs of sub- 



