THE SCALE INSECT GENUS ASTEROLECANIUM 217 



ASTEROLECANIUM VARIABILE, new species 



(Fig. 78, A-E ; pi. 8, 0) 



Ha bit.— Living on the upper surface of lenves, in shallow pits. 



Test of female. — Circular, longer than wide, or slightly wider than long, 

 posterior end sometimes slightly produced; approximately 0.7-1.10 mm. in diam- 

 eter; flat or slightly convex dorsally, sometimes with a faint longitudinal median 

 carina and curved lateral carinae meeting at anterior end, and with transverse 

 striations; convex ventrally ; greenish or clear yellow, translucent, punctate 

 near margin ; marginal filaments pale salmon, slightly shorter at posterior end 

 than elsewhere; elliptical larval exit in margin. 



Adult female. — In shape similar to test, approximately 0.65-1 mm. in diameter. 



Margin : 8-shaped pores in a single row terminating twice a posterior pore's 

 length from bases of apical setae, posterior pores 8 /x long and 5 wide, the 

 others 9-10 /x long and 6 wide, usually about a pore's width apart, but some- 

 times about a pore's length apart at posterior end ; quinquelocular pores varying 

 considerably in distribution and number, arranged in a single row terminating 

 anywhere between posterior pair of 8-shaped pores and midpoint between these 

 pores and posterior spiracular pore bands, complete, or interrupted at anterior 

 end for a space equal to that occupied by 15-25 8-shaped pores, slightly less 

 numerous than corresponding 8-shaped pores near posterior end of row, a little 

 more numerous than 8-shaped pores close to posterior spiracular pore bands 

 and usually twice as numerous as 8-shaped pores anterior to posterior spiracular 

 pore bands. 



Dorsal surface : Minute 8-shaped pores numerous ; disk pores fairly sparse ; 

 tubular ducts 24 /x long. 



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

 beak with 2 pairs of setae; spiracle with bar fairly broad; a group of 3 or 4 

 quinquelocular pores near spiracular opening, and 13-22 extending to body margin 

 in an irregularly double row ; multilocular pores, totaling 35-45 and having 5-10 

 (usually 10) loculi, in 4 or 5 complete and 2-4 interrupted rows, each of 4 

 complete rows with 6-8 pores (fifth when present with 3 or 4) and each of 

 interrupted rows with 2; dark-rimmed 8-shaped pores scattered each side of 

 beak and on anterior half of body; submarginal 8-shaped pores in a single row 

 terminating near posterior row of multilocular pores, about as numerous as 

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

 about one-half length of an apical seta from bases of apical sttae; 2 or 4 

 pairs of setae in posterior row of multilocular pores, 1 pair in each of the other 

 complete rows, and 1 pair in 1 or 2 interrupted rows. 



Apex of abdomen : Lobes indicated ; setae, apical 48-52 fx long, interapical 

 5-7 ix long, outer ventral 4-5 /x long ; anal opening ventral, well removed from 

 body margin, circular, its margin faintly sclerotized, with 2 setae 4 fx long on 

 anterior edge. 



Larva. — Nearly elliptical. 



Margin : With 28 8-shaped pores, posterior pores smallest, the others gradually 

 increasing in size anteriorly, but those on anterior half nearly uniform in size, 

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



Dorsal surface : 8-shaped pores possibly normally in a submedian and in a 

 lateral row of 8-10 each, on each half of body, the total number ranging from 

 33-37, but some larvae with a total of only 4-28; when there are several pores 

 in each row, the posterior pores are slightly smaller than the anterior ones, but 

 all are at least as large as the marginal pores of the same segments; disk pores 

 between submarginal and lateral, and a few between lateral and marginal 8-shaped 

 pores. 



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

 stout, 2 slender; antennal bases one-half length of antenna apart; beak setae, 

 3 pairs apical; 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 length of tarsus; 9 pairs of submarginal 8-shaped 

 pores; 7 pairs of submarginal minute setae on abdomen. 1 pair of submarginal 

 larger setae at anterior end; 3 pairs of setae between antennae and mouth parts. 



Apex of abdomen : Lobes sometimes indicated; setae, apical 48-54 m long, inter- 

 apical 5.4 fi long, outer ventral 3.6 m long: anal opening ventral, elose to body 

 margin; anal tube very short, sclerotized: anal ring a sclerotized band, with •_' 

 setae 3.6 /x long. 



