70 PROC. ENT. SOC. WASH., VOL. 21, NO. 4, APR., 1919 



occasional fusion of the segments, as of the last two, or of the fifth and sixth 

 occurring, in which case there is a partial suture present; legs characteristic 

 of the genus, the relative proportions indicated in the figures, tarsal digitules 

 stouter than claw digitules, both projecting well beyond the apex of the claw 

 and distinctly knobbed at apices, claw with a distinct denticle close to the 

 apex, anterior tibiae and tarsi about equal in length, the four posterior tibiae 

 slightly but evidently longer than the corresponding tarsi, hind coxae with 

 numerous, 30 or more, medium size pores, hind femur with 4-6 obscure 

 clustered pores above near apex; anal lobes riot very large or stout, incom- 

 pletely chitinized, with three long slender dorsal spines and an apical and 

 three ventral hairs, of which two are basal and the other is placed close to 

 the apical hair which is long and stout, 265 M^ much more than twice as 

 long as the longest anal ring hairs which are about 1 10-1 !OM ="= , ventral subapical 

 hair of the anal lobes relatively very long, much longer than anal ring hair, 

 160-nOn^ ', anal ring as usual in the genus, open anteriorly, each half with a 

 solid interior band containing four or five small isolated pores in its whole length, 

 bordered outside by a single row of irregular-sized approximately circular pores, 

 which is interrupted at intervals by the larger circular bases of the four anal ring 

 hairs present on each half; body with stout tapering spines, slender but 

 bluntly rounded at apices both dorsally and laterally, those on the margins 

 much larger and stouter than those on the dorsum, at least on the abdomen, 

 each margin of each abdominal segment typically with three large spines, 

 all different in size, the largest placed posteriorly, the next in size anterior to 

 the largest and the smallest inside towards the middle line of the body from 

 the other two, so that the bases of the three are in a triangle, largest marginal 

 spines 70 ju long , intermediate marginal spines 53 /u long == , smallest marginal 

 spines 43 n =*=, average size dorsal abdominal spine 25ju, with some dorsal 

 spines on thorax and head as much as 44^ long, but these few and scattered, 

 dorsal spines without apparent definite arrangement, except that they are 

 evidently in transverse bands, corresponding to the segments, on the abdomen; 

 ventral abdominal hairs occuring in a single but not straight nor evenly 

 curved row on each segment, except that there is on most of the segments 

 a median pair, flanked on each side by a single plainly larger hair, these in 

 turn flanked by a series of smaller hairs; cup-shaped gland duct bases rather 

 shallow, very slightly asymmetrical, fairly numerous; ventrally with scattered 

 but segmentally arranged multiocular pores, these more numerous on the 

 posterior abdominal segments. 



This species has been described from 7 specimens mounted on 

 slides and from a small amount of unmounted material from 

 Mendoza, Argentina, host and date of collection not given, under 

 collection number 17 n. 



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



