310 



This interesting species is placed in Pulvinaria because 

 it has a cottony ovisac, though little developed. It is, 

 however, very close to Lecanium mangiferoi and its allies, 

 if we except the generic characters. It may be con- 

 sidered typical of a new subgenus Frotopulvinaria, 

 distinguished by the flat pyriform female scale, with 

 very long anal plates, and a slightly developed cottony 

 ovisac. 



26. Pulvinaria simnlans, n. sp. On tree not identified, Port- 

 of -Spain (TJrich). 



Length, with sac, about 5 mm., length of sac about 3 

 mm breadth of sac about 2 mm. 



Shrivelled female brown ; ovisac snow-white, depressed* 

 with parallel sides, not ribbed, closely felted, not at all 

 overlapping scale. 



Antennae of 7 joints ; 4, 5, 6, 7 sub-equal, 4 shortest. 

 3 longest. 6 has a false joint near its end, but I feel 

 sure is only one joint. Tibia about one-third longer 

 than tarsus. Tarsal knobbed hairs ordinary ; digitules of 

 claw very large and thick, with large knobs. Margin of 

 scale with simple spines ; spines of lateral incisions 

 distinct, one of each pair longer than the other, in one 

 case the longer spine was bifid. Anal plates short and 

 broad. Anogenital ring with very many hairs. 



It is attacked by a Chalcidid parasite. 



Compared with P. cameUicoIa from Macon, Georgia 

 (sent by Dr. C. V. Riley, the locality is a new one) it 

 is practically the same, so far as external appearance 

 goes. The microscopical characters, however; are not 

 quite those of camellicola ; and P. simulans occurs on 

 the under-side of a leaf which is certainly not camellia. 

 P. psidii is also somewhat similar (I have specimens 

 from Mr. Maskell), but it occurs massed together, not 

 singly like simulans. Many of the species of Pul- 

 vinaria are very closely allied, and while I consider it 

 best to treat simulans as distinct, I realise the possi- 

 bility that future investigations may show it to be a 

 variety of camellicola. 



Agricultural Experiment Station, Las Cruces, 

 New Mexico, U.S.A. Oct. 7th 1893. 



