54 Prof. T. D. A. Cockerell on the 
Labium not elongated; hairs of anal ring remarkably 
short; legs ordinary, middle leg with femur + trochanter 135, 
tibia 70, tarsus 60. Antenne 6-jointed: (1) 385-39, (2) 39, 
(3) 42-45, (4) 24-27, (5) 33-36, (6) 60-66. 
Hab. Las Vegas, on roots of grass, April 25 (Wilmatte P. 
Cockerell). 
A very distinct species, with its pale colour and snow-white 
sac. 
Ripersia salmonacea, sp. n. 
@.—Length about 1700 w. Plump, of ordinary form, 
pale salmon-pink, appearing white above from a dense mealy 
secretion, which leaves the segments well marked; not so 
mealy below, hence pinker. Margin with an irregular but 
distinct fringe of cottony tassels, almost or quite obsolete in 
the thoracic region ; short caudal tassels. Legs and antennze 
extremely pale. 
Boiled in liquor potasse turns a fine deep claret-colour ; 
labium dimerous, long. 120, lat. 90 w; anal ring with six 
bristles ; skin with many small glands, not hairy ; legs large, 
only sparsely hairy, about four hairs in each longitudinal row 
on tibia; femur stout. 
Middle leg: femur+trochanter 200; tibia 126; tarsus 84. 
Width of femur about 67. 
Antenne 7-jointed, formula 7 (1 2) (6345). Joints: 
(1) 42, (2) 42, (8) 380, (4) 30, (5) 30, (6) 35, (7) 78-84. 
Joint 7 has a notch about 35 w from base; joint 6 is cylin- 
drical, not cup-shaped. 
Penultimate stage.—Tarsus about 80, tibia 80. 
Very young.—Salmon-pink, not mealy. 
Hab. Near Gallinas River, at La Cueva, prox. 5800 feet, 
April 20 (Wilmatte P. Cockerell). 
Easily recognized by its colour and fringe. 
Ripersia tenurpes, sp. n. 
¢ .—Length 2 millim. Very light pinkish, looking almost 
white ; no lateral or caudal tassels ; not a hairy species; eyes 
well developed; labium about 90 w long and 60 broad; an- 
tennee and legs, especially the latter, unusually slender ; 
middle legs with femur-+trochanter 156 (femur 35 broad) ; 
tibia 108; tarsus 62. Antenne 7-jointed, but the suture 
between 3 and 4 obscure. Joints: (1) 30, (2) 24, (8) 24 
(4) 24-25, (5) 21-23, (6) 24, (7) 60-69. 
Hab. 'Tyout Springs, Gallinas Cafion, April 27 (7. D. A, 
& W. P. Cockerell). 
Quite distinct by the rather large size, pale colour, and 
slender legs. 
