SYSTEMATIC TREATMENT 51 



cicolus n. sp. Another slide labeled "cotype" contains immature specimens of a 

 species of Puto. Other slides not indicated as type material contain specimens of 

 Trionymus villosa (Ehrh.) either alone or in company with immature specimens of 

 P. quercicolus. None of the slides bear any date, but I am informed by Mr. Essig 

 that they were not all collected at the same time. 



The original description of the species cannot apply to the specimen labeled 

 "type," for this description indicates that the antennae were 7-segmented. It does 

 apply to Trionymus villosa (Ehrh.). The so-called type was evidently selected sub- 

 sequent to the publication of the original description from the specimens described 

 by Essig as the "summer form" of P. agrifoliae. In view of this it appears that the 

 name agrifoliae cannot be used for this species, and for it I propose the name quer- 

 cicolus. :} 



It further remains to be decided what is to be done with the name agrifoliae. 

 It probably is a synonym of T. villosa (Ehrh.), although none of the specimens of 

 this species are included in the material bearing any type designation. The name 

 might be used for the species of Puto, but there can be but little if any question 

 that this is either P. yuccae (Coq.) or P. koebeleiEhrh., so that in any case the name 

 becomes a synonym. Inasmuch as the original description applies especially to T. 

 villosa I regard agrifoliae as a synonym of this and place the species of Puto as a 

 misidentification. 



Pseudococcus ryani (Coq.). 

 See plate 1, fig. 11. 



1889. Dactylopius ryani Coquillet, West Amer. Scientist 6:122-123. 



1903. Dactylopius andersoni Coleman, Jn. N. Y. Ent. Soc. 11 :62-3, pi. 5, figs. 3-4. 



1903. Dactylopius dudleyi Coleman, Ibid. 11 :63-4, pi. 5, figs. 5-8. 



In life. Covered with white, powdery wax, the lateral tassels very 

 short, the caudal pair from one-half to one-third the length of the body. 



Morphological characteristics. With 15-17 pairs of cerarii, of which 

 the anterior 2-3 pairs have three conical spines and the remainder but 

 two, these spines in all the cerarii being very small except for those of 

 the anal lobe pair which are conspicuously larger than the others. All 

 the cerarii without auxiliary setae and with a cluster of but a half-dozen 

 pores, except the last which has several small hairs and numerous pores 

 concentrated into a circular area about the conical spines, this area being 

 slightly chitinized. Ventral sides of the anal lobes sometimes with a very 

 small isolated chitinized area which may, however, be entirely lacking. 

 Dorsal body setae few, small and slender. Triangular pores few ; tubular 

 ducts few, small, for the most part without raised rim about the mouth. 

 Anal lobe setae about equaling anal ring setae. 



Immature female not observed. 



Type host and locality. From Cupressus macrocarpa near Los An- 

 geles. 



Hosts and distribution. Recorded by Coquillet from Thuya orientalis 

 and Araucaria excelsa as well as from the type host near Los Angeles. 



