Two new Coccida3 from North America. 13 



about a dozen species of these insects found nowhere else. 

 Moreover, the only genus (Cerococcus, Comstock) considered 

 peculiar to the Nearctic Region comes from the arid portion 

 of it ; while Tachardia, Prosopophora, and Lecaniodiaspis 

 are restricted to the arid portion so far as America north of 

 Mexico is concerned. 



Last year I found in the State of Chihuahua, Mexico, a 

 peculiar Coccid, which I made the type of a new subgenus 

 {Ceroplastodes) of Fairmairia. It was then questionable 

 whether Ceroplastodes should not be considered a valid genus, 

 and I now propose so to regard it, having a new species refer- 

 able to it to announce. Fairmairia must be regarded as 

 monotypic and restricted to Europe. 



Ceroplastodes dalece, sp. n. 



Adult 2 • — Scales numerous on the twigs, snow-white, 

 3 millim. long, 2£ wide, 2 (or slightly over) high. Glassy 

 but opaque, with posterior orifice as in C. niveus. Rough, 

 with strong prominences, irregularly placed, but running in 

 an antero-posterior direction. The outline of the scale, as 

 seen from either end, may present six prominences, but this 

 is variable j the two dorsal ones are the largest. After boiling 

 in caustic soda the female is pale brownish ; the margin with 

 a few short, rather thick spines. 



Tibia very little longer than tarsus ; a little shorter than 

 tarsus + claw. Tibia with three bristles near its distal end — 

 two on the inner side, one on the outer. Tarsal knobbed 

 hairs rather stout, but with obscure knobs; extending as far 

 as end of claw. Claw large, moderately curved; digitules 

 small and ordinary. 



Antenna} seven-jointed : joint 2 shortest, then 6 and 7 ; 4 

 almost or quite as long as 3, 5 nearly as long as 4. Formula 

 3 (41) 5672, but one might almost as correctly write 

 (3415) (5 (72). Last joint rounded, with many short hairs. 



Other specimens indicate some variation in the antennse ; 

 joint 7 may be a little longer than 6, 4 may be even a little 

 shorter than 5 and only about as long as broad. 



Youny elongate, not keeled, shiny, rugose, reddish brown, 

 longitudinally flattened, but transversely decidedly convex, 

 somewhat less than 1 millim. long. 



These young individuals are observed on the leaves, mostly 

 stationary, but sometimes crawling. 



Larvce taken from under the female scale are (in soda) 

 crimson, elongate ; with distinct caudal tubercles, each 

 emitting two short bristles or hairs and the usual caudal seta, 



