THE SCALE INSECT GENUS ASTEROLECAXIUM 163 



conspicuous claws in the position occupied by the posterior claws when 3 pairs 

 are present; rniiltilocnlar pores, with 9 or 10 loculi, in 5 or 6 complete and 3 or 4 



interrupted rows, apparently with 9 rows in all, the anterior interrupted row 

 anterior to posterior spiracles, posterior row with 4 or 5 pores, penultimate row 

 with 6-13. each of next 4 with 13-22. and each of next 3 with 4-11, the total 

 observed being 108-110: 1-4 dark-rimmed 8-shaped pores each side of beak, 

 some scattered on anterior end. and others arranged in 4-7 transverse rows 

 among multilocular pores ; submarginal 8-shaped pores in a single row terminat- 

 ing near posterior row of multilocular pores, nearly as numerous as corresponding 

 marginal 8-shaped pores : disk pores in a single submarginal row entad of sub- 

 marginal 8-shaped pores, terminating nearly directly anterior to apical setae, 

 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; 4 

 setae in posterior row of multilocular pores, 2 or 3 in penultimate row, and 2 

 in each of next 2 rows. 



Apex of abdomen : Notch present : lobes strongly developed ; setae, apical 

 100 u long, interapical 7.2 jx long, dorsal 5.4 /jl long, inner ventral 4 /j. long, inter- 

 mediate ventral 5.4 m long, outer ventral 10.S u long; anal ring with 2 setae 32.4 n 

 long and 4 setae 28.8 n long, and with an inner row of 6 and an outer one of 18 or 

 19 pores, divided on dorsal and ventral sides ; ventral surface of apex strongly 

 sclerotized in a roughly linear area extending anteriorly from inner lobes, sur- 

 rounding area very weakly sclerotized and wrinkled. 



Data. — Described from unmounted material and three mounted 

 females occurring on Psychotrm sp.. Urai. Taiwan (Formosa). R. 

 Takahashi collector. December 27. 1931, holotype and paratypes. 



Similar to coralZinum, javae, and litseae. It differs from coraVinum 

 in having some dorsal 8-shaped pores much larger than the marginal 

 ones, in having only 1 pair of claws, in having 13 to 19 spiracular quin- 

 quelocular pores instead of 23 to 37. and in having 2 linear sclerotized 

 areas instead of 1 rectangular sclerotized area on the ventral surface 

 of the apex of the abdomen. From javae and litseae it may be dis- 

 tinguished by having 1 pair of claws instead of none or 3. and from 

 the latter it differs further in having a pair of dorsal setae and 3 pairs 

 of ventral setae. 



ASTEROLECAXIUM PUSILLUM, new Species 



(Fig. 55. F-V; pi. 7, 0) 



Habit. — Living on the lower surface of leaves. 



Test of female. — Circular. 0.6-0.7 mm. in diameter: convex dorsally. with 

 a low. fairly broad, longitudinal median carina not reaching margins, very low 

 submarginal carinae. and a shallow furrow between carinae. also with faint trans- 

 verse stria tions; flat ventrally; greenish or fairly clear pale yellow, transparent. 

 thin, shiny: marginal filaments usually clear pale yellow, sometimes pinkish, not 

 observed at posterior end: fragmentary dorsal filaments in a small transverse 

 group on median line near anterior end and in 1-3 smaller groups in lateral 

 area near posterior end: elliptical larval exit in dorsal surface fairly near margin. 



Adult female. — Nearly circular. 0.6-0.7 mm. in diameter, posterior end produced. 



Margin: 8-shaped pores in a single row terminating near produced part of 

 abdomen, posterior pores 7-3 fi long and 5 wide, others u long and 6 wide, usually 

 a pore's width apart: quinquelocular pores in a single row terminating near the 

 twelfth posteriormost 8-shaped pore, usually half as numerous as corresponding 

 8-shaped pores toward posterior end. and about as numerous as the latter else- 

 where. 



Dorsal surface: 8-shaped pores in a transverse group of 13 anterior to mouth 

 parts, and in 1-3 lateral groups, on each side of posterior ha!;' of body, consis Qg 

 of 1-4 pores each, the individual pores measuring u long and ." wide; minute 

 8-shaped and disk pores rather sparse: tubular ducts arranged roughly in 6 I 

 tudinal rows, none on median line posterior to mouth parts or ch se to ma] 

 27 m long: dorsal tidies present. 



Ventral surface: Antenna circular, flattish, with 1 seta longer than diameter 

 of antenna: beak without setae: spiraculai bar fairly broad; 2-5 quinque- 



