PROC. ENT. SOC. WASH., VOL 21, NO. 4, APR., 1919 S.~> 



thin transparent outer surface covering of the cell cavity; the transparent 

 area varying from irregularly circular to irregularly elongate oval, and usually 

 surrounded by an area of darker brown than the remainder of the derm with 

 approximately but by no means exactly the same shape as the clear area; 

 of the clear areas, the largest observed in the subdorsal region about 170/i 

 in largest diameter, the diameters in the middorsal region ranging from 25-50 ^ 

 with the larger size nearer the average, through the whole dorsal and sub- 

 dorsal region with an occasional minute pore with a diameter of about G/u; 

 the distances between the middorsal pores varying, but rarely less than 5(V; 

 in the region of the large subdorsal pores, the minimum w r idth of the chitinized 

 separating area about the same, although on account of the larger size of 

 the clear areas, the resulting impression given is that they are more closely 

 crowded; in the submarginal region the clear areas smaller than dorsally, 

 but even closer together and usually elongate oval in shape, the pores in- the 

 marginal band all much smaller than elsewhere, though very uneven in size, 

 nearly circular, with a maximum diameter of about 15^, and separated by 

 widely varying distances, the minimum being about 25/u, but giving the im- 

 pression that they are far more widely scattered and separated than in other 

 regions of the dorsum; ventrally with fairly numerous but scattered minute 

 elongate slender tubular glands with cup-shaped bases, the total length from 

 opening to end of cup about 21 M, and with multiocular pores, a few scattered 

 near each spiracle, an occasional one in the derm between it and the spiracular 

 spines, and rather numerous groups in the anal plate region, the exact number 

 and position of these not determinable; anal cleft completely fused for prac- 

 tically its entire length; anal plates together forming a short oval, almost 

 a circle, sometimes unequal in length, maximum length about 165 /u, width 

 of each about 68-70 ju, inner margins more or less parallel-wavy, but nearly 

 straight, outer margins almost uniformly curved from base to apex; with 

 four dorsal spines, one apical, two subapical and quite close to the apex, and 

 the fourth a little caudad of the middle and quite close to the inner margin 

 of the plate, with three or usually four spines of different lengths on the 

 ventral ridge of each plate, with a single small fringe seta and with four 

 small hypopygial setae, each plate with from one to five indistinct scattered 

 oval pores in a slightly curved row running caudad and medially from a 

 point on the outer margin about one-third of the plate length from its base, 

 when only a single pore is present, located about the middle of the length 

 of the plate and well inside the outer margin; with a small anal ring, length 

 87 M, width 36 M, very distinctly divided into two wide slightly curved halves, 

 each about lOju wide, with 10 anal ring hairs in all, the longest of these about 

 128ju, rather slender. 



This species has been described from 15 specimens and parts of 

 specimens mounted on slides and from a considerable amount of 

 unmounted material, all from Mendoza, Argentina, collection 

 number I7h, no data as to host or date of collection available. 



The types are in the U. S. National Collection of Coccidae. 



