48 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



trochanter large; femur very stout, outer margin very convex; tibia as long 

 or longer than femur, with at least six knobbed hairs, and many spines at the 

 posterior end; tarsus less than half as long as tibia; outer margin convex, 

 inner margin concave, and bearing four or more spiny hairs; claw very stout 

 and curved; no digitules on claw nor on tarsus; anal tube wanting. There 

 are small round pits on the dorsum. 



Intermediate Stage. — Length i mm., width .7 mm.; suboval, slightly nar- 

 rower toward anterior; color red. Antennae and legs wanting; mouth-parts 

 prominent; rostral loop long. 



Newly Hatched Larva.— Length about .2 to .25 mm.; elliptical in outline, 

 narrower toward anterior end. Color red; antennae and legs pale. Eyes 

 round and prominent. Antennae very large, club-shaped, and close together; 

 six-segmented; formula 6, i, 3, 4, 5, 2; segment 6 very much the longest, as 

 long as all the others together; segment i next to the longest and very broad; 

 segment 2 shortest; each bearing a few hairs. Mouth-parts very large; ros- 

 tral loop long. Legs subequal; coxa wider than long; femur stout; tarsus 

 short; digitules fine hairs; claw, long and slender. Posterior end of the 

 body with two long hairs and a few very fine scattered hairs. Margin of 

 body with capitate hairs. Anal tube wanting. 



This species was found by the author on Quercus myrsi- 

 ncefolia (Shira-gashi) and Quercus acuta (Katagi), in 

 Tokyo, and on Quercus acuta in Chikujo-gun, Kiushiu. 



"The absence of the anal tube in younger stages allies it 

 with certain species of Coelostomd" (Pergande). 



Type in the Entomological Collection of Leland Stan- 

 ford Jr. University, and co-types in the author's collection. 



Subfamily COCCINtE. 



Tribe Aster olecanium. 



Genus Lecaniodiaspis Targ. 



5. Lecaniodiaspis quercus Ckll. 



Lecaniodiaspis quercus Cockerell, Psyche, Supp., 1896, p. 19; Bull. T. S. 

 No. 4, Div. Ent., U. S. Dept. Agric, 1896, p. 51. 



This species was found by the author on Quercus acuta 

 (Katagi), Pasarnia glabra (Matera-shii), and Q. sessilifolia 

 (Tsukubane-gashi) in Tokyo, and Q. acuta in Chikujo-gun, 

 Kiushiu. It was originally described by Cockerell from 

 specimens sent to the Division of Entomology, U. S. 

 Department of Agriculture, by O. Takahashi, Tokyo. 



