1918.] BASHAMBAR Das: The Aphididae of Lahore. 165 
The latter is listed by Lefroy in Ind. Insect Life, p. 747, from safflower (Carthamus 
hnctorius), but I have never collected it from anywhere in India nor have I so far 
seen any Indian specimens of the same. 
_ M. sonchi is easily recognised by the tufts of hair on the abdominal segments 
besides other structural features. The colour and food-plant, however, being the 
same, confusion between the two is quite likely to occur. 
I have not been able to compare M. solidaginis with the American insect Macro- 
siphum sonchella (Monell), but in correspondence with Mr. P. van der Goot I have 
learnt that the Indian Sonchus Aphid is identical with the Javanese one, which he 
considers to be identical with the European Macr. solidaginis, Fabr. I have therefore 
accepted the name as given by van der Goot. 
Rhopalosiphum lactucae (Kalt.). 
Syn.—A phis lactucae (Kaltenbach). 
Rhopal. ribis (Koch), according to Buckton. 
Literature :-— 
(x) Kaltenbach, Mon. d. Pflazenlause, 1843. 
(2) Buckton, Mon. Brit. Aphid., II, pp. 9, 10. 
(3) Jour. Econ. Entom., III, p. 378. 
(4) Sanderson, Canad. Ent., XXXIII, p. 70 (1901). 
(5) Theobald, Journ. Econ. Biol., III, 3, p.105 (1912). 
(6) Schouteden, Aphids de Belg., p. 236 (1906). 
Food-plants—In Europe and America this insect has been recorded on the fol- 
lowing plants :— 
: (I) Sonchus oleraceus. 
(2) S. asper. 
(3) S. arvensis. 
(4) Cichorium endiva. 
(5) Ribes rubrum 
(6) À. grossularıa 
(7) Lapsana vulgaris. 
(8) Pacris heiracoides. 
| Currants and Gooseberries. 
In the neighbourhood of Lahore it has been observed rather sparingly only on 
the three species of Sonchus mentioned above; especially on S. asper growing in 
shady places or along the edges of water-courses in Gol-bagh and the Ravi forests. 
The time of appearance is always from May to June, clustering round young 
flowerheads. 
Distinguishing marks.—A rather large Aphid, from yellowish-green to green in 
colour ; long greenish antennae, legs and cauda ; cornicles very much swollen in their 
distal halves ; alate females with a black irregular blotch and smaller spots on the 
back; the apterous females are provided with a few sensoria on article III of the 
antennae; it appears in May on Sonchus spp. 
The species can easily be identified from the above diagnosis, and as fairly accu- 
