68 THE CALIFORNIA SPECIES OF MEALY BUGS 



without a raised rim about the mouth. Large numbers of multilocular 

 pores present on the dorsum of the abdomen as well as on the venter. 

 Anal ring hairs slightly shorter and more slender than the anal lobe hairs. 

 Anal ring large and heavily chitinized. 



Immature female much resembling the adult. 



Type host and locality. From Calceolaria in Australia. 



Hosts and distribution. As far as I am aware this species is known 

 only from "New Zealand flax" on the campus at Berkeley. 



Authentication. Not authenticated. Is probably not the Dactylopius 

 calceolariae of Maskell. 



Notes: Specimens from Berkeley have been compared by Mr. Morrison 

 with specimens in the Maskell collection at Washington and he has furnished the 

 following information : "We do not appear to have the type slides of calceolariae, 

 as that was described in 1878, and the first slide in the Maskell collection is dated 

 1880. However, your specimen appears to agree exactly with the one in the Mas- 

 kell collection. There are also two other specimens, about 1887, in the Maskell 

 collection which have three cerari on each side at the apex of the abdomen, in- 

 stead of two as have your specimens and the first one in the Maskell collection. 

 In all other respects they seem to be the same as the earlier specimens. I find 

 that the same situation exists in the Department collection as well, there being 

 two groups of specimens, one with three pairs of cerari and one with two." 



It is possible that these are the same species, for a similar variation occurs 

 in T. calif ornicus Ehrh., but it is equally possible that two species are included. 

 In either case I can scarcely believe that the species at hand is the real Dactylopius 

 calceolariae of Maskell. In the original description it is stated that "the appen- 

 dages are short except at the posterior end, where there are two very long, and, 

 on each side of them, another somewhat shorter," and the species is figured with 

 caudal tassels of nearly half the length of the body. In the specimens before me 

 there cannot possibly be any lateral tassels because of the entire absence of cerarii 

 and the weak development of the anal and preanal cerarii precludes the develop- 

 ment of any but the shortest tassels in this region. There is therefore every pos- 

 sibility that Maskell himself has confused two or more species under this name, 

 but toward the solution of this problem I can of course give no aid. For the pres- 

 ent I am retaining the name for the specimens at hand rather than give a new 

 name for a species which in all probability already is supplied with one. 



Trionymus californicus Ehrhorn. 

 See plate 2, fig. 19. 



1910. Ripersia smithii Essig, Pomona Col. Jn. Ent. 2:219-221, fig. (In part.) 



1911. Trionymus californicus Ehrhorn, Can. Ent. 43 :279, figs. 17, 1-lb. 



In life. Found beneath the sheathing bases of the leaves, enclosed in 

 more or less waxy secretion, or at times free upon the leaves. When 

 found free upon the host there are two or three pairs of caudal tassels 

 of which the last are quite stout and are nearly one-third the length of the 

 body, the others smaller. 



