E 
echmea mexicana, Pitcairnia br omeliaefolia, P. latifolia, P. alta, 
Bactris acanthocarpa, and. Euterpe speciosa, pernicious species, 
found almost everywhere on cutüvdod plants, and is often very 
destructive to young pot palms 
t§D. earueli. (Females and male puparia.) Infesting and 
o he 
rom se 
cuttings is hot known. It is from variety horizontalis—an old 
collection plant, and is probably from cuttings.” (Nicholson, in 
lit., March, 1898. 
D. calyptroides, Costa. Common in the succulent house. 
Aulacaspis (Diaspis), Cockerell. 
SA. rose, Bouché. (Females and male puparia). Abundant on 
Rosa spp. in the open air. This is the common “ scurfy-scale” of 
the rose, both cultivated and wild. 
TA. p ny Targ. Tozz. (Females and male puparia.) Hab 
‘on Prunus Pseudo-cerasus freshly imported from Japan. About 
It is a pest in many parts of the world, and is very destructive to 
the mulberry in Southern Europe. . 
Poliaspis, Maskell. 
*tP. cycadis, Comst. (Female and male puparia.) Very 
Bue on Cycas revoluta, C. media, C. celebica, Zamia 
"mur icta, and Z Loddigesii 
| Chionaspis, Signoret. 
$C. salicis, Linn. (Females and male paparié,) Common o 
pn (Fraxinus excelsior) and on Syringa vulgaris. Tt isa ahl 
r, but is most commonly met with on ash, willow and alder 
pon hon a). 
*C. aspidistrae, Sign. (Females and male puparia.) On Cocos 
plumosa, Heliconia metallica, Polypodium aureum, and Cordyline 
australis. In this country the species is decidedly partial to 
“ferns. 
*łC. biclavis, Comst. (Females usd On Anona muricata. 
First recorded by Mr. A. C. F. Morgan, F.L.S. (Ent. Mo. Mag. 
s.s. vol. iii., p. 15), and not since met with. This Sle has the 
remarkable power of burrowing under the bark of its food plants, 
or under the epidermal layer of hairs, woolly filaments or 
.seales, &c., completely casein: itself and its puparium. 
 Mytilaspis, Sign. 
8M. , Bouché. (Females only. Common on Rites 
sanguineum, ` R. prostratum, Ceanothus papillosus, Cornus ay 
var. Spaethii, C. sanguinea, Eleagnus ai gentea, 
laris, Salix sp. (Hybrid alpine willow). - This is the species known 
to horticulturists as the “‘ Mussel Scale.” It is a very general E 
.but is partial to ne cultivated apple and cotoneaster. The fei 
are for the most part parthen ogenetic ; the males having been 
