24 Mr. T. D. A. Cockerell on 26. Pieris Josephina. Pieris Josephina, Godart, Euc. M6th. ix. p. 158 (1819) ; lliibner, Samml. exot. Schmett. ii. pi. cxxvi. (1819-86). Male and female, St. Domingo, and male, Mexico. B. M. Mr. Heron and I have compared our specimens with Godart's types, now in the Edinburgh Museum. IV.— Some new Coccidje. By T. D. A. Cockerell, Entomologist of the New Mexico Agricultural Experiment Station. Pulvinaria ephedra?, sp. n. Mature female about 5 millim. long, with a snow-white ovisac 11 millim. long and 4 broad. Body of female quite soft, not at all chitinous, raspberry-pink in front, greenish on dorsum, with some minute black specks. The front part of the female is covered by a thick square patch, 2 millim. broad, of white secretion ; the hind margin is also fringed with secretion, and the body has irre-gular patches, arranged in three longitudinal bands, of which the middle is the narrowest and most definite. Ovisac firm, not adhering to objects which may chance to touch it, ribless. Eggs greenish yellow. $ . — When boiled in caustic potash turns the liquid pink. Mounted on a slide, 6 millim. long and 4^ broad ; legs and antennas brown. Antenna? 8-segmented, 1 at least twice as broad as long ; formula 3425168 7. The several segments of an antenna were found to measure as follows in fifi : — (1) 62, (2) 70, (3) 112, (4) 81, (5) 67, (6) 56, (7) 36, (8) 47. Legs ordinary, tarsus about half length of tibia ; claw-digitules rather stout, extending beyond tip of claw ; tarsal digitules slender. Margin with very numerous sharp spines, placed closer together than the length of one. Anal plates yellowish brown. llab. On Ephedra, Mesilla Park, New Mexico, a short distance east of the Agricultural College, in the Larrea zone, May 1898. A very beautiful and distinct species, superficially rather resembling Icerya Rileyi, which occurs in the same locality on Larrea. The characters italicized in the description are of subgeneric value, and P. ephedrce may be regarded as the type of a new subgenus — Philephedra.