72 SPOLIA ZEYLANICA. 
Siphunculi fairly long and thin, their basal half distinctly 
enlarged ; the top part of the cornicles is finely reticulate. 
Cauda ensiform, about quarter shorter than the cornicles. 
Legs long and slender, with scattered short spines. 
Life History—This small Macrosiphum was captured by 
Mr. Rutherford in May, 1914, living on Vernonia cinerea. 
Only a few wingless specimens could be discovered at that time. 
Locality —Peradeniya. 
Macrosiphum rose, L.—Collected on roses, only wingless 
specimens present. 
Locality —Peradeniya. 
Mycromyzus nigrum, v.d.G.*—A few winged and wingless 
individuals of this small species were collected by Mr. Ruther- 
ford on ferns (17-11-13); some months later (11-7-14) a 
single-winged female was observed on cinnamon (Cinna- 
momum, sp.). In Java only ferns have been observed as 
host plants. 
Locality —Peradeniya. 
Toxoptera aurantii, Boyer.—The author’s recent observa- 
tions on this species have proved that Toxoptera aurantti has 
a very wide range of food plants. In Ceylon it has been 
collected by Mr. Rutherford on the following host plants : 
Celtis cinnamomea (on flowers), Cynometra cauliflora (on 
inflorescences), Hugenia mooniana (on apex of twigs), Fla- 
courtia ramontcht (on young shoots), Mesuaferrea (on young 
twigs), and on Plumbago capensis. On Mesua the colonies 
were attended by the well-known ant @cophylla smaragdina. 
Locality.—Peradeniya. 
Toxoptera minuta, v.d.G.—A single specimen was captured 
on the wing. In Java the author has observed a Cyperace 
(Fimbrystilis diphylla) as a food-plant of this species. 
Locality —Peradeniya. 
Aphis gossypii, Glov.—This widely spread and polyphagous 
species has been collected by Mr. Rutherford on Aristolochia 
indica, on an Euphorbiaceous weed, and on Solanum torvum. 
On the latter food-plant the colonies were attended by the red 
* This and following species, bearing the author’s name, are described 
in full in his recent publication on Javanese plant lice (Zur Kenntnis der 
Blattlause Java’s. Contributions & la faune des Indes neerlandaises. 
Vol. I., fase, iii., 1915). 
