THE CANADIAN ENTOMOLOGIST. 



47 



AN ANTS'-NEST COCCID FROM NEW MEXICO. 



BY J. D. TINSLEV, MESILLA PARK, N. M. 



Pheiiacoccus soleiiopsis, n. sp. 



Adult $. — Lengih, 5 mm.; width, 3 mm.; many are smaller than 

 this, but this seems to be the average size of the adult containing eggs. 

 Colour yellowish-gray, although they appear light gray, from the mealy 

 secretion which covers the body. 



Shape, ellipsoidal, dorsal surface quite convex, ventral surface flat, ex- 

 tremities rather pointed. Segmentation quite distinct to naked eye. Ex- 

 tremely short lateral appendages, little projections just visible; caudal 

 appendages a little longer. 



Legs and antennae pale brown. 



Dorsum has no bands, marks or ridges. Antennae (fig. 6) of 9 seg- 

 ments ; segment 2 longest, one-third longer than 9, which is next ; segment 

 3 next longest and about three-quarters the length of 2 ; 

 segment i usually next, although it is sometimes longer ^-i j^^^yu,. 



than 3, and sometimes sub-equal with 5 ; segment 4 is Va. 



shorter than 5 ; 5 is usually shorter than 3, but is al- ^H^-^J- 



ways appreciably longer than 4, 6, 7, or 8; 6 and 7 I / '^^ 



usually sub-equal ; 8 often sub-equal with 6 and 7, but \ \ y ^% 



usually shorter. u y c. 



Formula 293 (15) 4 (67) 8. Segments of antennje 

 with moderately stout hairs, segments i, 4, 6, 7 and 8 

 having one ring and the others two' or more rings of ^ ' ^'^ 



hairs. See figure of antenna. ^^1 . %i 



Legs. — Femur fairly stout, being nearly half as Lj^^'^ 

 wide as long (width ii6/x, length 282 /x), surface bears 

 numerous bristles ; tibia fairly stout (width 42 /x, length 

 282 yu,), equal in length to the femur, bears numerous Fig. 6. 



fairly stout spines ; tarsus conical, not quite one-half the length of the 

 tibia (length 105 /x), several spines and a pair of long, slender digitules ; 

 claw rather small (length 34 /x), a pair of fairly stout, knobbed digitules. 



Anal lobes and ring normal. 



Ovisac. — The one ovisac which I have found was on the stem of 

 Kallstra'mia brackystyiis, Vail., and was about 7 mm. long, 4 mm. wide, 

 and rather loose in texture. 



Eggs and newly-hatched larvae pale yellow ; male as yet unknown. 

 Habitat. — In nests of Sole?iopsis gemmata. Fab., about the roots of 



