June, 1903] COLKM.W : CoCCID.E OF THE CoNIlER.t:, 03 



Stout, not reaching beyond the margin of the body ; tarsus one third as long as tlie 

 tibia ; claw stout ; the four digitules present, ventral pair very stout ; tibia and tarsus 

 armed with numerous long hairs ; a single short spine on the inner margin of tibia 

 near the distal end. Antennre (Plate V. Fig. 4), about .5 mm. in length, eight- 

 segmented, formula, 8, 3, 2, I, 5, 4 (6, 7) ; each segment with numerous hairs. 



Habitat. — Discovered by the author on Cupressus t^oveniana, in the 

 southern part of Lake Co., California, June 21, 1901. Found by 

 Mr. M. P. Anderson and the author, on Lilwcednis decurrens, in Scott 

 Valley, Siskiyou Co., Cal., in August, 1901. 



In both localities mentioned the trees on which the specimens 

 were found were in well-protected, warm little nooks, in the first in- 

 stance in a little ravine about halfway down the mountain side, in the 

 second, just at the edge of the valley and at the foot of a dry hill. 



JVote. — Mr. Edward M. Ehrhorn and the author made a careful 

 comparison of specimens of this species with specimens of D. rya?n 

 in his collection. While we find some resemblance, there are also 

 many marked differences, viz., the ovisac of £>. ryani is a rather 

 shapeless fluffy mass, while that of D. andersoni is perfectly symmet- 

 rical and of a very solid construction. There is much difference in 

 the size of the two species and in the antennre, as will be seen by the 

 following table : 



D. andersoiii, antenna;, i (22), 2 (26), 3 (27), 4 (16), 5 (20), 



6 (15), 7 (15), 8 (35)- 



D. ryani, antennae, i (15), 2 (17), 3 (22), 4 (17), 5 (12), 6 

 (13), 7 (12), 8 (30). 



Type specimens in the entomological collection of Stanford Uni- 

 versity. 



Dactylopius dudleyi, sp. nov. 



Adult Female and Ovisac. — The adult female is usually entirely enclosed in a 

 very light, fluffy, white ovisac, in which the eggs are embedded at the upper anterior 

 part, some of the sacs being so loosely constructed that both eggs and female arc vis- 

 ible from above. As they are of a very irregular shape, it is very hard to give any 

 e.xact measurement, but they are on an average, about 2.5 mm. in length. 



Adult Female (Plate V, Fig. 5). — The adult female is about 1.6 mm. in length 

 and .6 mm. in width ; color grayish-white ; body covered with fine whitish powder ; 

 marginal appendages not conspicuous, caudal filaments short. Body covered with 

 many fine hairs, which are scattered evenly over each segment, each segment densely 

 pitted with the openings of fine spinning glands, one or two larger ones near the mar- 

 gin ; all segments with marginal groups of two or three small spines, eighth ab- 

 dominal segment with one long hair and several shorter ones on each lateral margin, 

 arising from near the groups of spines, ninth segment armed with marginal groups of 



