94 ENTOMOLOGICAL NEWS. [April, 



time was two hundred and forty- nine days, the shortest one 

 hundred and twenty days. With the Spring young the time is 

 still longer. 



A very elaborate series of observations on the development 

 (in course of growth) of the coloration and the character and 

 disposition of the pigments cannot be touched on here at all. At 

 best, only a few details of the many recorded by the patient 

 student can be referred to. Accompaning the notes are many 

 drawings, most of them in colors, illustrating especially the studies 

 on coloration development. It may be that these observations 

 and drawings can be elsewhere published. They are distinctly 



worth publication. 



o 



THE THIRD AMERICAN KERMES. 



By T. D. A. COCKERELL. 



Kermes is a genus of Coccidae, found, with one exception, on 

 o.its. In Europe there are several species, one of which, at least, 

 furnished a red dye to the ancients. North America has only 

 two species yet described, a third is added herewith :- 



Kermes boguei n. sp. 9 scale occurs on the twigs, two or three together. 

 Globose, slightly oval; length about 6 l /2, breadth 5^, height 5 mm., vary- 

 ing a little in these proportions. Surface without gibbosities, not very 

 shiny ; with a lens one sees that it presents innumerable chill rugosities 

 with intervening shiny lines. The general color is dark ; there are five 

 suffused, more or less broken bands of dull scarlet ; the areas between 

 these are whitish, but largely occupied by broken black lines or stripes. 

 There are also transverse blotchy bands of black, much interrupted. The 

 general effect produced is an irregular blotching of scarlet, black and dull 

 white ; the black may predominate and make a dark scale in which the 

 scarlet and white are not so readily noticed. 



The 9, boiled in caustic soda, turns the liquid claret color. Dermis 

 very slightly brownish by transmitted light, almost colorless. Round 

 gland -orfices, and short spines in places. There are patches of very dis- 

 tinct tessellation. 



Young larva reddish purple (after boiling),. with light yellow legs and 

 antennae. It is elongate, but not excessively so, being not very much 

 more than twice as long as broad. Antennae 6-jointed ; 3 longest, but not 

 quite twice as long as broad ; 6 nearly as long as 3, 2 a little broader than 

 long, 5 shortest. Formula 36 (21) 45. Margin with a row of spines, 

 averaging about as far apart as the length of one. Caudal tubercles elon- 

 gate, blunt, each with a spine like the marginal ones, and a very long 

 caudal seta. Claws slender, curved. Tarsus twice as long as tibia. 

 Rostral loop reaching to base of hind legs. 



