22 Mr. T. D. A. Cockerell on new 



tubercles ; bristles of anal rinp very short, about 42 loiifj; ; 

 caudal bristles very short, not or hardly longer than the 

 spines ; legs quite hairy ; claw with no denticle on inner side ; 

 claw-di^ituk'S filiform. 



Middle leg: teniur + trochanter 255, tibia 195, tarsus 75 ; 

 •width of femur 57. 



Labium dimerous, long and narrow; length 135, breadth 75. 



Antennffi 8-jointed, about 285 apart ; measurements of 

 joints: (1) 60, (2) 54-60, (3) 51-54, (4) 36, (5) 39-42, 



(6) 39-45,_ (7) 3G-39, (8) 75-78. 



Larva3 in female very long and narrow : length 396, 

 breadth 162. Half- grown examples are still long and narrow : 

 length 1500, breadth 660. 



IJab. On grass on cliffs by the sea, La Jolla, California, 

 Aug. 6, 1901. 



A distinct species, having the shape of a Pergandiella when 

 young. It resembles D. aphyllonis and D. quercus in the 

 red colour it gives on boiling, but otherwise it is quite 

 distinct. The antennae come nearest to D. neomexicanus. 



Dactylopius neomexicanus^ Tinsley, var. /9. 



$ . — Pale dull yellowish, covered with a mealy secretion ; 

 segmentation conspicuous; no lateral tassels; quite hairy; 

 caudal tubercles well-marked, with bristles about 180 long ; 

 bristles of anal ring alwut 90 long. Middle leg: femur + 

 trcchanter ISO, tibia 120, tarsus 66. Antennal segments: 

 (1) 39, (2) 3i>, (3) 33-35, (4) 21-24, (5) 24-27, (6) 24-27, 



(7) 27, (8) 72. 



Imviuture form. — AntenncE 6-jointed : (1) 30, (2) 30, 

 (3) 42, (4) 21, (5) 21, (6) 63. Joint 3 is inclined to be 

 divided into two, measuring 28 and 14; joint 5 is cup-shaped. 



^Middle leg: lemur + trochanter 105, tibia 66, tarsus 62. 

 The legs are quite stout, the breadth of the middle femur 

 being 57 to GO, of middle tibia 33. The anterior legs are by 

 no means so broad. 



llah. Crowded at extreme base of stem of some Composite 

 plant, apparently Eriyeron. Beulah, New Mexico, 8000 feet 

 {Wilmatte P. Cockerell). 



This is possibly a distinct species, but the antennai are 

 \ ractically as in neomextcafius, and the same may be said of 

 the legs. The immature form has legs much like a Bipersia 

 (except in the proportions of tibia and tarsus), and its an- 

 tennae closely resemble those of R. caudidata and R. confu' 

 6c//a, though in these two joint 5 is always longer than 4. 

 ]t steuis that Lifjcrsia it Leitainly a mure ).'rinutive type 



