1895.] Contributions to Coceidology. 727 
* Ceroplastes floridensis Comst. Several on fern leaves (n. o. 
p., but cp. supposed C. vinsoni, in Timehri, Dec., 1889, p. 309, 
fig. 3). The fifth Ceroplastes found in Antigua. 
Lecanium hemisphericum Targ. A few on fern leaves (cp. 
Bull. Bot. Dep. Jamaica, 1894, p. 71). 
Lecanium olee (Bern.). Brown variety. One on fern leaf. 
(Also found on leaves of a fern in hothouse, Denver, Colo., by 
Prof. Gillette, the fern in this case being Platycerium alcicorne). 
TRINIDAD, WEST INDIEs. 
The first two are certainly, I think, native; the third prob- 
ably native, the fourth certainly introduced. All were coll. 
Mr. J. H. Hart in 1895. 
*Icerya rose Riley & Howard. Sent in quantity, from the 
base of a tree of Amherstia nobilis, “ covered up by small cav- 
erns of earth by a species of small ant that no doubt was in- 
terested in so doing. The scale was not perceived above 
ground at all, but on the roots there were plenty of several 
sizes.” (Hart in litt.) This was on Jan. 26. 
Vinsonia stellifera (Westw.). On Stanhopea (n.g.p.). “ Fairly 
common here but causes little trouble.” (Hart in litt.) There 
appear to be good reasons for believing that this is properly a 
neotropical species. ' 
Otheria insignis Dougl. In numbers on leaves of lime (n. 
p.), “quite a pest.” (Hart in litt.) (Also found by Professor 
Townsend on lime and orange in Mexieo, as will be set forth 
in a report shortly to be issued. The insect is to be dreaded 
as a pest of Citrus fruits in the warmer parts of the U.S.; al- 
ready it is well known in this country as a greenhouse species 
(cp. Mr. Lounsbury’s paper, lately sent out from the Amherst, 
Mass., College), and may very easily be transferred thence to 
out-of-door plants in the South. In Ceylon it has also ap- 
peared, and Mr. E. E. Green has found the true ¢—the pre- 
sumed ¢ of this species, found by Douglas and Lounsbury, 
being apparently those of Dactylopius. It is hard to explain 
why the true 3 (with caudal tuft) has not been seen in Amer- 
ica, unless it is that the insect reproduces parthenogenetically 
with us. It may here be remarked that Ortheria edwardsii 
Ashmead, described only from the ¢, is pretty clearly no Or- 
theria. : 
