360 THE CANADIAN ENTOMOLOGIST. 



A NEW PULVINARIA FROM NEW MEXICO. 



BY GEO. P.. KING, LAWRENCE, MASS. 



Puivinaria Tinsleyi, n. sp. 



Shriveled adult female scales on the twigs, light brown, elliptical, 

 convex. Ovisac, clear white, texture as in P. itinumerabilis. After 

 boiling in K. O. H., derm colourless, not pitted or tessellate. Legs and 

 anal plates tinged with yellow. Spines of lateral cleft in threes, one long 

 and curved; 76 /^ long, two quite short, 28 /^ long. Margin with one 

 row of stout blunt spines 40 //. long, 6 broad. Anal plates heart shaped," 

 each ICO \i broad and 136 ^x long, Antennae y-jointed, width quite 

 constant, but the length of the joints seems to be quite variable. I have 

 examined ten, with the following results in /x : Joint (i) 24 to 40, (2) 

 40-60, (3) 68-80, (4) 52-64, (5) 28-36, (6) 28-40, (7) 44-52. Formula 

 3472651. Joint 3 is always longest, while 4 is nearly as long, but never 

 equal ; i is always the shortest, 5 and 6 are next and sometimes nearly 

 equal. Joints 2 and 3 have two long hairs each ; 5 and 6 have 3 each ; 

 7 seems to have 9, the terminal one very long. 



Legs normal, with the coxa 80 \i. long, 100 broad. Femur with 

 trochanter, 208 long, 68 broad. Tibia, 180 long, 24 broad. Tarsus, 92 

 long, 20 broad. Claw, 24 long. The trochanter has one short terminal 

 hair. Tibia and tarsus each with four short subterminal hairs. Digitules 

 of tarsus and claw normal, with knobbed ends. No satisfactory measure- 

 ments can be given of the dead and shriveled adult scales ; but those 

 boiled and pressed under a cover glass seem to be nearly circular, about 

 5 mm. in diameter. Larva, just hatched, — yellow, elliptical, marginal 

 spines absent. Antennae 6-jointed, measuring in /x : (i) 20, (2) 16, (3) 

 32, (4) 16, (5) 16, (6) 36. Leg, coxa 48. Femur with trochanter, 60. 

 Tibia, 48. Tarsus, 44. Larva?, perhaps about three or four weeks old, 

 on the leaves of the food plant, have well-developed 7-jointed antennae, 

 and large blunt marginal spines. 



Hab. — On Celtis sp., in a draw near the road from Pecacho to 

 Roswell, in the Pecos Valley, New Mexico, about 20-25 miles west of 

 Roswell. Some of the limbs were almost covered with the scales, and 

 many of the leaves were about killed. Collected by Prof. Tinsley, 

 August, 1900, and sent to Prof Cockerell, who turned it over to me for 

 study. Puivinaria innumerabilis has been recorded from Celtis occi- 

 dentalism but innumerabilis has nothing to do with the species above 

 described, although the two are superficially similar, and might be 

 confused at first sight. 



