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



claw; claw large, well curved, with denticle on its inner margin. The pos- 

 terior end of the body is furnished with lobes, each terminated by a long hair 

 and a spine. Anal ring very prominent, with eight hairs. 



j5"^^.— Length .3 mm., width .17 mm.; oval in shape; color pale brown. 



Newly Hatched Larva. — Length .41 mm., width .2 mm.; long, elliptical in 

 form, very much like that of Gossyparia ulmi. Antennae six-segmented, .1 

 mm. long; formula, 3, 6, 2 (i, 4, 5); segment 3 longest; segment i stoutest; 

 segment 6 with many long hairs; the others with a few. Mouth-parts large; 

 rostral loop reaching to the fourth abdominal segment. Legs subequal, 

 large; tibia very much stouter than tarsus; tarsal digitules fine and knobbed, 

 digitules on claw short, extending only slightly beyond claw. Margin of 

 body with very strong spines; dorsal aspect of thoracic, and first two abdom- 

 inal segments, with two spines. Abdomen tapering toward posterior extrem- 

 ity, and furnished with lobes, each bearing long hairs and two spines. Anal 

 ring with six hairs. 



This species was found by the author on Arundinaria 

 hindsii var. gramince (Kanzanchiku) in the grounds of the 

 Nishigahara Agricultural Experiment Station, Tokyo. 



Type in the Entomological Collection of Leland Stan- 

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



Genus Gossyparia. 

 II. Gossyparia ulmi Geoff. 



Gossyparia ulmi Geoff. Signoret, Essai, 1875, p. 21. Howard, Insect 

 Life, Vol. II, 1890, p. 34. CocKERELL, Proc. Phil. Acad., 1899, p. 268. 

 Gossyparia spuria Modeer. 



This species was found by K. Oyama, on Ulmus sp., in 

 Nagano-ken. It differs, however, from the specimens found 

 on Stanford University campus in having the body of the 

 adult female entirely covered by the waxy secretion. 

 Microscopic characters show no difference. 



Tribe Dactylo^iini. 



Genus Dactylopius Costa. 



12. Dactylopius comstocki, sp. nov. 



Plate IX, Figs. 34 and 35. 



Adult Female.— Length 4 mm., width 2 mm.; long oval in outline, slightly 

 narrow in front. Dark purple in color; antennae and legs brown; body 

 dusted with white powder. 



