72 Journal New York Entomological Society. [Voi. xl 



lobe and a slightly larger one considerably removed cephalodateral from each 

 lobe ; spines, four between the lobes, one between the lobes and second incision, and 

 two cephalo-laterad of each second incision ; dorsal spinning glands grouped on each 

 lateral margin of each one of the body segments, anterior lateral groups of last seg- 

 ment of twenty to thirty, posterior laterals about ten. 



Young Larva (Plate VII, Fig 23). — The young larvje, which are developed 

 in the body of the female, are at birth about .23 mm. long, .13 mm. wide, of a 

 broadly oval form and light yellow color; antennas six-segmented, formula, 6, i, 3, 

 2 (4, 5), a single terminal hair, one long hair near the base, a shorter one near the 

 end and one near the middle of the sixth segment, a long hair on the first segment, 

 and very minute hairs on each of the other segments, as indicated in the figure ( Plate 

 VII, Fig. 23, «) ; legs very stout (Plate VII, Fig. 23, <^), tarsus stout and curved, 

 with a pair of very long knobbed hairs about the middle, dorsally, and a long hair 

 just below these ; claws very long, stout, and slightly curved, with a pair of knobbed 

 digitules at base. Abdominal margin plain with two very long hairs. 



Male not known. 



Habitat. — Discovered by the author on Cupressiis goveniana, 

 about six miles north of the southern line of Lake Co., on the Toll 

 road between Calistoga and Lakeport, California, June 21, 1901. 

 This is the only locality from which it has been obtained as yet. 



Type specimens in the entomological collection of Stanford Uni- 

 versity. 

 Physokermes taxifoliae, sp. nov. 



In June, 1900, Mr. Edw. M. Ehrhorn and the author found on 

 the red fir {Pseiidotsiiga taxifotia) at Stevens Creek, Santa Clara Co.? 

 California, numerous specimens of the adult and young of a Fhyso- 

 keniies, which after a careful comparison with F. insig/iicola Craw., we 

 find to be very near to that species except for the following differences, 

 viz.: The color is uniform light, mahogany brown, while that of in- 

 signicola is very dark or almost black ; measurements of antennae, in 

 microns : 



P. taxifolicB, 90, 180, 150, 60, 80, 130, formula, 2, 3, 6, i, 5, 4. 



P. insignicola, 100, 280, 150, no, 80, 150, formula, 2, (3, 6) 



4, I, 5- 



The young are essentially the same in both species. 



In the summer of 1901 I found this Physokermes on Pseudotsuga 

 taxifolia, all through the coast counties of northern California, and 

 wherever found they were of the same color. As this color is so con- 

 stant and the scale insect seems to be confined to Pseudotsuga taxi- 

 folia, we propose it as a new species. 



Type specimens in entomological collection of Stanford Univer- 

 sity. 



