180 Memoirs of the Indian Museum. [Vor Wale 
Brevicoryne coriandri, sp. nov. 
Host.—On Coriander (Coriandrum sativa); Vern. Dhania. 
Distinguishing characters. —A rather stout Aphid, clustering on the umbels of 
Coriander flowers and young fruits; body mottled or irregularly spotted greenish. 
Rusty red patches around the bases of the short brown cornicles, which are swollen in 
the alate female; cauda longer than cornicles ; numerous sensoria on the 3rd and 4th 
articles of antennae; pupae generally with a reddish-brown intercornicular band. 
MORPHOLOGICAI, DESCRIPTION. 
Apterous viviparous female.—Body very mealy, thickset, resembling that of 
Siphocoryne (=Aphis) brassicae; egg-round, appearing a little flattish on account of 
the short stout legs. 
Colour dirty greenish, the portion behind the cornicles and on the edges yellowish 
or lighter greenish ; on the dorsum are conspicuous a number of irregularly scattered 
dark green spots; mottling is also noticeable in fresh specimens after removal of 
the white powder. Some (3-4) of the spots are between the cornicles, others on 
either side of the mid-dorsum, two or three are on the thoracic segments also. 
A large, more or less circular spot, rusty-red in colour, around the base of each 
cornicle is never absent; a faint stripe on the penultimate segment and another 
smaller and darker line on the last segment. 
Head brownish, broad, with black eyes and without frontal tubercles. 
Front rounded or convex. 
Antennae light greenish, distal part consisting of the 5th and 6th joint black; 
small, about one half or less than the body length. 
Proportions from 3rd joint onward :— 
III. I V. ME 
13 7 6 5+II 
Actual lengths ait DT “IO ‘85 -+°I9 mm. 
Prothoracic segment without lateral tubercles and generally with a single greenish 
spot. 
Meso- and metathorax with a blackish spot on the lateral edge above the inser- 
tion of each leg. 
Abdomen without lateral tubercles; the last two segments arch over the cauda ; 
the skin is marked out into clear polygonal areas. 
Cornicles dark brown, similar or slightly deeper in colour than the patch around 
their bases; short, more or less cylindrical, not distinctly clavate, but constricted 
below the distal rim, which is black. They are here smaller than the cauda. 
Cauda conspicuously long, light greenish, conical, the apical part above the waist 
almost cylindrical; base broad, hyaline, edged with black. 
Genital plate blacker and apparently larger than the anal plate, the latter rectan- 
gular, the former somewhat crescentic or semicircular, concave anteriorly. 
Ventral surface lighter in colour, with two or three blackish blotches about the 
level of the lateral grooves. 
Lors ds en Mn 
