18, 6 Morrison: Nondiaspine Coccide 675 
area, but very closely crowded along the margin, although inter- 
rupted at intervals here by solid radial clear streaks, each bear- 
ing a few tiny sete; with some additional small sete, widely scat- 
tered, dorsally ; antennz probably, but not certainly, present, de- 
velopment not known; legs probably, but not certainly, wanting ; 
spiracles and mouthparts not observed; dorsally with eight clus- 
ters of pores and small cicatrices, arranged in a semicircle, four 
on each side of the anal plates, the rows curving forward; no 
other specialized dorsal gland pores observed; ventrally with 
small quinquelocular pores between spiracles and margin, no 
others noted, probably due to condition of specimens; dorsally 
Fig, 18. Paralecani vacuum sp. nov., adult female; a, portion of derm at margin, showing 
flabelle and areolation, X 57.5; b, detail of body margin and flabellz, X 220; c, anal plates, 
»~ 115; d, number and position of “cribriform plates,” X 12, with detail of one plate, X 220, 
and detail of single pore from plate, X 1,500; e, spiracular spine incision, showing bases 
of spines, X 500; f, spiracular disk pore, X 1,500; g, dorsal seta, X 1,500. 
with the small, stiff, scattered sete already mentioned; spirac- 
ular spines in threes, but all broken, so the size and shape inde- 
terminate; marginal flabelle small as compared with the total 
Size of the insect, broader than long, but varying to some extent, 
nearly sessile, normally slightly overlapping; no ventral setz 
observable, due to condition of specimens; marginal interspaces 
between insertions of flabellee very indefinitely incised, with from 
three to six visible incisions at some points, these indistinct at 
others, and with only minute crenulations showing; anal plates 
