New Mexico Coccide of the Grenus Ripersia. 55 
FRipersia trichura, sp. n. 
?.—Longer than usual, pinkish, but covered with white 
mealy secretion (W. P. C.). 
Skin unusually crowded with round glands; cephalic region 
somewhat bristly; caudal region very bristly ; caudal lobes 
not prominent, their bristles about 165 w long; six bristles on 
anal ring, 135 w long; legs not unusually slender; anterior 
femur 105 w; middle leg with femur+ trochanter 138 (femur 
alone 105, width 36); tibia 84; tarsus 57. 
Antenne 6-jointed. Joints: (1) 39-45, (2) 33-36, (3) 
30-42, (4) 25-27, (5) 30, (6) 60. Formule 6 1 2 (3 5) 4 
and613254. 
Hab. Las Vegas, April 29 (Wilmatte P. Cockerell). 
My wite brought this in with the remark that it seemed to 
be new; but I thought it was confusella, until I saw the extra- 
ordinarily long bristles of the anal ring and caudal tubercles. 
The caudal bristles of confusella measure about 117 pw, of 
irtvittata 114 w. ‘The bristles of the anal ring in most of the 
species are under 100 w—for instance, 72 in Portere, 45 in 
trivittata. ‘The legs of R. trichura are similar to those of 
confusella. 
Ripersia trivittata, sp. n. 
3.—Body 950-1050 mw long; antenne about 600, 10- 
jointed, joints cylindrical, with whorls of hairs ; wings 1100p; 
two white caudal filaments, short, about 150 pw. General 
colour, including legs and antenna, light straw-yellow; head, 
prothorax, extreme base of antennez, and abdomen suffused 
with lilac; mesothorax with three purplish-brown longitu- 
dinal stripes; sides of thorax purplish brown; eyes black, 
relatively large, prominent, shiny; head seen from above 
widest in region of eyes. 
?.—About 1g millim. long; of ordinary form. Pale 
yellowish, with a slight pink tinge, some decidedly pink ; 
sparsely mealy; turning dark brownish red on boiling in 
liquor potassee. 
Antennz and legs pale brown; antenne 6-jointed, (1) 30, 
(2) 80, (8) 80, (4) 18-24, (5) 24, (6) 72. Formula 6(123) 54. 
Anterior tibia about 60; tarsus 63. 
Hab. Las Vegas, under a rock with Lasius americanus, 
April 18; males and females together in numbers, apparently 
copulating. 
The female is known from confusella by the first three 
antennal joints being of about equal length; but I should 
have thought it only a variety but for the essentially different 
male. 
