THE COCCIDAE OF CALIFORNIA. 17 



Larva elongated oval, rather more than twice as long as broad, yellow, 

 greatest breadth behind the middle of body. Eyes red, caudal tubercles 

 quite large, each bearing one long bristle and three stout spines, one 

 near bristle and one on the outer and inner margins of tubercle. On the 

 anterior margin of the head are six bristles; the sides of the abdominal 

 segments are armed with stout, but not very long bristles. Antennae 

 cylindrical, 6-jointed; formula: (3 6) (1 2) 4 5; last joint rounded at tip 

 with several hairs, one very long; rostral loop extending halfway 

 between base of third pair of legs and anal ring. Legs quite large, claw 

 long and curved; tibia shorter than tarsus. 



On twigs of Quercus lobata. 



Very much parasitized by undetermined chalcid. 



Kermes g-alliformis Riley. 



The following short description of this species is taken from Mr. King's article ''The 

 Genus Kermes in North America," and the description published in " Coccidte of Ohio," 

 by James G. Saunders: 



"A large dirty-gray form, which turns to a nearly white color when 

 exposed to a season on the twigs. Female scale 6 mm. long, 7 mm. 

 broad, 6 mm. high, with black spots, and viewed with a hand lens the 

 scale is seen to be covered with minute black specks. Newly hatched 

 larva dirty gray." 



On oak. 



Kermes nigropunctatus Ehrh. and Ckll. 



Female. — Scale 4.5 mm. long, 5.5 mm. broad, nearly 4 mm. high, not 

 very pale ochreous, speckled all over with black, the black specks so 

 small as to be readily overlooked without the use of a lens; segmentation 

 obscure, but discernible, the sutures slightly impressed and marked by 

 more or less pallid transverse bands; an obscure median longitudinal 

 depressed line; under side of scale, where it touches the bark, flattened 

 and entirely dark brown; derm by transmitted light yellow, with 

 numerous round glands. Antennae small, 6-jointed; joint 3 very long, 

 about as long as 4, 5 and 6 together; joints 2 and 4 subequal and 

 smallest. Formula: 3 16 5 (2 4). 



Larva oval, about one and a half times longer than broad; greatest 

 breadth about the middle; pink; caudal tubercles large and distinct, 

 each bearing a moderately long bristle and three stout spines, one on 

 the outer and inner margins and one near bristle. The sides of the 

 abdominal segments are armed with stout, short bristles. Antennae 

 cylindrical, 6-jointed, formula 3 6 1 (4 5) 2; last joint rounded at tip with 

 several hairs; joint 5 with a hair; rostral loop extending beyond third 

 pair of legs; anal ring with six hairs. Legs stout, claw long and curved; 

 tibia much shorter than tarsus. 



