THE SCALE INSECT GENUS ASTEROLECANIUM 137 



Asterolecanium multbporum Green 



(Fig. 43. B-M; pi. 6. If) 



Described in 1915 (44- '[>> 48) as a variety of stypheliae; it is here 

 raised to specific rank. 



Habit. — Living on stems. 



Test of ferna I ger than wide, measuring 2.25 by 1.45 mm., posterior end 

 slightly produced; convex dorsally. with very faint transverse striatums; concave 

 ventrally : lemon yellow, transparent, fairly thin, fairly shiny; fragmei 

 marginal filaments whitish : larval exit a slit in margin. 



Adult female. — Elongate ovoid, posterior end slightly produced, about 1.75 mm. 

 long. 1.25 wide. 



Margin: 8-shaped pores in a single row terminating about three times a 

 posterior pore's length from bases of apical setae, posterior pores 10 y. long and 

 € wide, the others 12 u long and 8 wide, about a pore's width apart: quinque- 

 locnlar pores in a row that is triple at anterior end. double and occasionally 

 triple in lateral areas, and then double posteriorly, sometimes single for 3 or 

 4 pores at posterior end. terminating at the third p st< riormost pair of 8-shaped 

 3, as numerous as 8-shaped pores at posterior end. two or three times as 

 numerous elsewhere. 



Dorsal surface: Minute 8-shaped and disk pores rather sparse; tubular ducts 

 32 u long. 



Ventral surface : Antenna short, with 3 setae shorter and 2 longer than 

 diameter of antenna : 3 quinquelocular pores between antenna and margin : beak 

 with 2 pairs of setae : spiracle with bar fairly broad and expanded at inner end, 

 atrium enlarged and containing 7-11 quinquelocular pores. 3-10 similar pores 

 extending from spiracle to body margin in an irregularly single or double row, 

 a total of 12-17 in atrium and row combined; mnltHocular pores, having S-12 

 loculi. arranged in 6 complete and 4 interrupted rows ior and penultimate 



rows each with 18-21, next 14-30. next 20-24. next 15-18, next 13. each of next 

 3 with 4-6. and anterior with 2 or 3. the total ranging from 116-140; 3-6 dark- 

 rimmed 8-shaped pores each side of beak and a few scattered elsewhere : sub- 

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

 multilocular pores, nearly as numerous as marginal 8-shaped pores : submarginal 

 setae in a complete row terminating near the penultimate pair of marginal 

 8-shaped pores: 2 pairs of setae in the posterior row of multilocular pores a] I 1 

 pair in each of the next 3 rows. 



Apex of abdomen: Notch present; lobes barely indicated; setae, apical 70 ,u 



al 7.2-9 u long, inner ventral apparently 7.2 p long, outer ventral 



9 fi long: anal ring with 6 - rently 27 ,u long and apparently with an 



inner row of 6 and an outer row of 10 or 12 pores, divided si ■ and 



tending toward division od ventral: ventral surface with a heavily sclerol 



gate area extending anteriorly from near base of each apical seta, slightly 

 ized in dentate rows between heavily sclerotized areas. 



La\ c i. — N( rly elliptical, posterior end narrowed. 



Margin: S-shaped pores normally 28 in number, missing near posterior end 

 of body when Less than 28 < 5 small gradually incr- 



in size to the anterior pore: if 2S are present, the axes of the posterior 6 pairs 

 are diagonal or transverse, and of the others I § lal; normally a minute 



seta cl . rioi 3 pair-: ! teriorly. 



Dorsal surface: 8 shaped pores in a rather irregular lateral row. normally 

 7-9 on each half of body, posterior pores -mailer than a: and about 



two-thirds the size of marginal p< une segments ; - erior 



3 or 4 segments. 



Ventral surface: Antennal setae, I. 2: IV. 1; V, 1; VI. 2 Ion- 2 stout 

 stout. 2 slender; antennal bases nearly one-half length of antenna apart: beak 

 setae. 2 pairs apical. 1 pair basal; spiracle with l trilocular or quadrili 

 and 1 quinquelocular pore; leg setae, coxa 4. femur 1 on inner margin near 

 .base and 1 <>;i outer margin Dear center, tarsus 1 each en inner and 

 margin.-: tibia about one-half - as tarsus; !> pairs of submarginal 8—1. 



- of submarginal minute setae, on abdomen, thorax, and head, 3 

 pairs of submarginal larger setae at anterior end: 1 pair of setae between 

 antennae and mouth parts. 



