THE CANADIAN ENTOMOLOGIST 327 



Morphological characteristics. — Length of largest specimen 

 (flattened on slide) 2.8 mm. Mounted specimens pyriform or 

 circular. Adult female with well developed l-egs and with 6-seg- 

 mented antennae, the last segment longest. Derm membranous 

 throughout except for some irregular chitinization in old individuals. 

 Anal ring (in specimens flattened on the slide) appearing on the 

 ventral side of the body, in old individuals at some distance from 

 the posterior margin, quite small, heavily chitinized, non-cellular, 

 bearing 2 small setse. Body destitute of all but a very few ex- 

 tremely minute setse and three slender setae on each side of the 

 anal ring. Dermal pores quite numerous, all circular, the ma- 

 jority borne at the inner end of short ducts. On the ventral side 

 of the abdomen there is a median, longitudinal row of five quite 

 large, sessile pores. 



First stage larva with six-segmented antennae. Body beset 

 with many slender setae, especially toward the posterior end. 

 Anal ring simple, bearing six long setae. Anal lobes lacking. 

 Dermal pores numerous, circular, multilocular or occasionally 

 trilocular. 



Type host and locality. — From an undetermined species of 

 perennial grass growing on the ridge about a mile east of the reser- 

 voir at Pacific Grove, Monterey County, .Calif., Dec. 1, 1917. 

 Collected by the author. 



Paludicoccus, n. gen. 



Coccidae of the type described above. Adult female apodous 

 and with the antennae reduced to mere stubs, three-segmented. 

 Ventral side of the abdomen without cribriform plates. Anal ring 

 quite heavily chitinized, normally with 6 small setae. Dermal 

 pores circular and without distinct loculi. First stage larva with 

 6-segmented antennae. Adult male apterous; antennae 8-segmented. 



Type of the genus; Sphcerococcus disticlium (Kuwana). 



Paludicoccus disticlium (Kuwana). 



1902. Pseudolecanium disticlium Kuwana, Ent. News, vol. 

 13, p. 134, figs. 1, 2. 



1903. Sphcerococcus disticlium (Kuw.) ; Fernald, Cat. Coccidae, 

 p. 85. 



The descriptions and figures given by Kuwana are in general 



