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. 



