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



Asterolecanium inconspicuum, new species 



(Fig. 81, O-T; fig. 32, A, B ; pi. 4, K) 



Habit. — Living on the lower surface of leaves, in shallow pits. 



Test of female. — Nearly circular, 0.95-1.2 mm. in diameter, posterior end slightly 

 produced; flat dorsally, with or without a faint longitudinal median carina; 

 slightly convex ventrally ; yellow, transparent, fairly thin, somewhat punctate ; 

 marginal and dorsal filaments whitish, the latter very numerous, slightly longer 

 than marginal ; larval exit elliptical, in ventral surface at margin. 



Adult female. — Similar to test in shape, 0.85-1 mm. in diameter. 



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

 of apical seta from setal bases, 12 fi long and 8 wide, less than the width of 

 a pore apart ; 4-6 quinquelocular pores where each spiracular pore band meets 

 margin ; disk pores ventrad of 8-shaped pores (as nearly submarginal as marginal), 

 terminating between the posterior pair of 8-shaped pores and apical setae, less 

 numerous than 8-shaped pores. 



Dorsal surface : 8-shaped pores arranged in around 13 fairly definite transverse 

 rows, absent on posterior end and close to margin, 12-13 fi long and 9 wide : minute 

 8-shaped pores rather sparse, disk pores numerous ; tubular ducts 24 /u, long. 



Ventral surface : Antenna thimble-shaped, ending in a sharp conical spine, 

 with 2 setae longer than diameter of antenna and apparently sometimes 1 

 shorter ; beak with 2 pairs of setae ; spiracle with bar subcircular, derm around 

 opening somewhat sunken and containing 3-5 quinquelocular pores, 8 or 10 sim- 

 ilar pores (sometimes with 3 or 6 loculi) extending from spiracle to body margin 

 in an irregularly single row, a total of 11-13 pores in group and row combined ; 

 multilocular pores, with 6-9 loculi, in 5 complete and 3 interrupted rows, the 

 posterior row with 6 pores, each of next 2 rows with 9, next with 8, next with 

 6, next with 5, next with 3, and anterior row with 4, a total of 50 in the single 

 available specimen in which they can be counted accurately, apparently less 

 than 50 in other specimens ; dark-rimmed 8-shaped pores very sparse ; sub- 

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

 of multilocular pores, nearly as numerous as marginal 8-shaped pores ; sub- 

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

 8-shaped pores ; 2 or 3 setae in the posterior row and 2 in each of the other 

 complete rows of multilocular pores. 



Apex of abdomen: Notch shallow; lobes indicated; setae, apical 88 ft long, 

 interapical 5.4 fi long, dorsal 2 n long, inner and outer ventral each about 5.4 n 

 long ; anal ring with 2 setae 20 fi and four 12.6-14.4 /j. long, divided on dorsal 

 and ventral sides ; ventral surface of apex slightly sclerotized in dentate rows. 



Larva. — Too poor for outline to be determined or to be described completely. 



Margin : Apparently with 28 8-shaped pores, position with respect to margin 

 indeterminable ; apparently 3 pairs of setae anterioily. 



Dorsal surface : 8-shaped pores present but number and arrangement inde- 

 terminable, apparently slightly smaller than marginal pores ; disk pores present 

 but position indeterminable. 



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

 fairly stout, 2 slender ; beak setae, 2 pairs apical, 1 pair basal ; spiracle appar- 

 ently with 1 pore; leg setae, coxa 4, femur 1 on inner margin near base and 

 1 on outer margin near center, tarsus 1 each on inner and outer margins ; tibia 

 about one-third as long as tarsus; apparently 9 pairs of submarginal 8-shaped 

 pores ; submarginal setae, and setae near antennae, present, but their number 

 indeterminable. 



Apex of abdomen : Setae, apical 72 /j. long, interapical 10.8 fi long, dorsal 2 u 

 long, inner ventral 3.6 ix long, outer ventral apparently 2 fi long ; anal ring with 

 6 setae each about 12.6 fi long and with 6 pores, apparently not divided. 



Data. — Described from unmounted material, three mounted fe- 

 males, and one poor mounted larva on an unknown host, Brisbane, 

 Australia, G. Compere, Compere Collection No. 1161, holotype and 

 paratypes. 



Asterolecanium inconspicuum is the only known species, among those 

 having six setae on the anal ring and not found on bamboo, in which 

 there are no pores in the anal ring of the adult female. 



