350 THE ENTOMOLOGIST. 



an abstract of the species by Geoffrey, * Stettiner Ent. Zeitung, 

 xii. p. 132. 



I cannot vouch for the identification, but the fact remains, — 

 we have an unrecognised species, for which the name lunulatum, 

 Geoff., may be used. I shall myself prefer to use riparium, 01., 

 for the species with pale bases to the antennae, as it has been so 

 used generally by Schaum and others. Of course it is B. lunulatum 

 that is the " New British Species." 



B. iricolor, it seems to me, is a mere synonym of B. riparium, 

 as it has been recognised for the last thirty-three years ; and 1 do 

 not see that any confusion need arise whatever. 



The Chestnuts, Shirley Warren, Southampton. 



THEEE NEW COCCID^ FEOM THE ARID REGION OF 

 NORTH AMERICA. 



By T. D. a. Cockekell. 



Fairmairia (subg. Ceroplastodes, nov.) nivea, n. sp. 



Found at Montezuma E. R. Station, State of Chihuahua, 

 Mexico. On the twigs of a spiny shrub (Acacia?) in some 

 abundance; singly, or sometimes two close together, but then 

 not at all coalescing. 



Scale. — Length about 4 mm., height about 2J mm., breadth nearly 3 mm. 

 Rounded, with rather roughened surface, but no indication of plates ; snow 

 white, slightly shiny. The scales are very regularly formed; the white 

 substance is thin, and not like the wax of Ceroplastes, There is a variable 

 posterior cleft, which has its sides usually contiguous for its outer half, but 

 apart inwardly, forming a distinct more or less oval aperture. The dorsum 

 sometimes presents two very distinct knobs, conical, blunt, with concentric 

 grooves or striae ; these are normal in greater or less degrees of develop- 

 ment. The young larvae are elongate, and look, on the twigs, rather like 

 those of Tachardia. 



Adult female. — The body (boiled in caustic soda) is brownish yellow, 

 with the legs and antennae pale brown. The side of the body presents a row 

 of rather short stout spines. Antennae seven-jointed : 1st very broad, nearly 

 twice as broad as any other ; 1st also longest ; the other joints subequal, but 

 5 distinctly shortest ; 6 emitting a stout bristle ; 4 with a longer and more 

 slender bristle ; 7 with several hairs. The last joint is constricted about its 

 middle. Femur short ; trochanter with a long hair ; tarsal clubbed hairs 

 present, ordinary. Mouth-parts pecuhar, in that the rostrum is divided 

 longitudinally into two plates, the truncate or obscurely rounded ends of 

 which each emit three spines, of which the two innermost spines of each 

 plate are nearest to one another. 



Larva. — Elongate-oval ; legs with digitules and clubbed hairs. Posterior 

 cleft distinct, with a pair of elongated tubercles, each emitting a bristle, 

 which reaches about to the orifice of the cleft. Each side with about fifteen 

 broad low processes, from which proceed short elongate processes, two to 

 four on each. These structures remind one of the tufts of the very young 

 larva of Ceroplastes, which afterwards go to form the waxy covering. 



Egg. — Oval, dark madder -pink. 



