1918.] BASHAMBAR Das: The Aphididae of Lahore. 161 
The ventral surface is lighter in colour. 
The rostrum reaches up to the second coxae. 
Measurements :— 
Body .. Me. #3 M2 SON OS mn: 
Antennae ER Ar 33 7 8:00) 100haal. 
Cornicle a SS 11805705 %% 
Cauda a a EROSGNT,, 
Wing expanse .. a SONG, 
Wing .. Ai SR de MACON PAS mm. 
‘The ‘‘Punjab Rose Aphis’’ has a very strong superficial resemblance to the 
famous ‘‘Rose Aphis,’’ Macrosiphum rosae, Linn., said to be very common and 
often destructive in orchards and gardens in Europe and America. Apparently 
the same insect is met with in the East as well, as I have received specimens from 
Mr. van der Goot, who collected them on rose bushes in Java. They are in no way 
different to the insects I received from Europe and America. 
Lefroy mentions Macrosiphum vosae (Linn. or Reaum.) as occurring in India 
(Indian Insect Life, p. 747). I believe that this is based on Buckton’s identification, 
who had received some specimens from the North-Western Provinces and who 
considered them as identical with the English Rose Aphid, vide Monog. Brit. Aphnd., 
Vol. IV, p. 181. 
I do not find Buckton’s identifications very reliable so far as Indian plant-lice are 
concerned. In several instances in the case of insects sent him from the Indian 
Museum, Calcutta, even the genera are incorrect. About the species under review I 
can only say this much, that it is quite likely that India may be the habitat of true 
Macrosiphum rosae, Linn., but so far it has never been collected by me on rose bushes 
in the Indian plains. As there is a chance of this species being easily mistaken for 
the European Rose Aphis, I tabulate below the chief morphological characters in 
which the two insects differ from each other. 
I am calling this species Macrosiphum rosaeiformis, n. sp., as there does not 
appear to me any other species of this genus to which it would be so nearly related 
as M. rosae, Linn., from the literature available. 
DIFFERENCES IN THE TWO FORMS. 
Macrosiphum rosae (Linn. or Reaum.). Macrosiphum rosaeiformis, Sp. nov. 
Apterous viviparous female. Apterous viviparous female. 
(1) Body about twice as long as broad. (1) Body much longer, sometimes over 
; three times longer. 
(2) Sensoria on 3rd antennal article from (2) Sensoria never more than three, often 
8 to Io (Essig); from 3--5 large only two. 
and 3—5 small (Theobald). 
