THE CANADIAN ENTOMOLOGIST. 279 



Eggs light lemon-yellow. 



Young larvae lemon-yellow, covered with the usual cottony secretion 

 and marginal tufts. Dorsum with three carina running longitudinally, 

 marginal tufts composed of two and three joined filaments, resembling 

 Orthezia. Legs dark brown, quite hairy. Tibia very little longer than 

 tarsus, trochanter with long, slender hair. Margin with dark brown 

 glands composed of short, stout spines, usually 3 in number. Antennse 

 7 jointed, each joint with several long hairs. Formula : 7-3-5-(4-6) 2-1. 



Habitat. — On Quercus engle>na?i?ii, Benson, Arizona, A. Koebele, 

 Mar. 25, 1907. 



Trionymus calif ornicus, n. sp. 



Female elongate parallel-sided about ij^-2 mm. long by about 

 y^, mm. broad, slightly covered with white powdery secretion, not hiding 

 segmentation. Colour of body lemon-yellow. Where insects are found 

 between the sheaths, there is quite a lot of white powdery secretion, no 

 ovisac present, female body containing young. 



When placed in boiling K. O. H., body turns crimson and after boil- 

 ing is colourless. 



Antennae 8 jointed, each joint with several short, fine hairs. There 

 is quite a variation in the segments, even on the same specimen. The 

 following formulae have been found : 



Joints in /x : 1-48, 2-48, 3-32, 4-24, 5-32, 6-28, 7-36, 8-64. 

 Formula: 8(12) 7(35) 6.4, also 1-40, 2-28, 3-24, 4-24, 5-16, 6-28, 

 7-68. Formula : 7.1. (2.6) (3.4) 5. Also 1-48, 2-48, 3-36, 4-28, 5-28, 

 6-28, 7-32, 8-80. Formula : 8. (i, 2) 3. 7. (4, 5, 6). Joint 8 ending in long 

 bristle about ^ its length, antennae about 200// apart. 



Legs short and stout, quite hairy, middle leg about 400// long, tibia 

 twice as long as tarsus. Anal ring quite large, with 6 hairs (80 \s)^ lobes 

 very low, with long bristle (80-90//), and two stout spines, several hairs 

 and numerous spinnerets. Margin sparsely set with short, curved spines. 

 Digitules of tarsus long, fine-knobbed hairs, those of claw curved clubs. 



Habitat. — On Festuca sp., near Lathrop, California. 



XvLOCOCCUS Macrocarp/E Coleman. — (Journal N. Y. Ent. Soc, 

 Vol. XVI, p. 198). 



I found this species very abundant on Libocedrus decurrejis at Sisson 

 and Shasta Springs, and also on the same plant in the Yosemite Valley, 

 Cal. This insect was doing considerable damage to young trees ; this was 



