158 THE ENTOMOLOGIST. 



sensorium ; sixth darkest, about as long as fourth and fifth ; basal 

 area not half as long as fifth. Proboscis reaches past second coxae, 

 apical segment acuminate, longer and narrower than penultimate. 

 Cornicles about as long as fourth antennal segment, faintly imbricated 

 with a few transverse striae near apex. Cauda wider than cornicles, 

 a little more than half their length, with four long hairs on one side, 

 three the other and a subapical one ; expanded at base. Anal plate 

 green. Wings much longer than body, with pale greenish-brown 

 stigma and pale-brown veins ; hind wings with one or two oblique 

 veins. 



Length, 1"5 mm. 



Food Plant. — Wild avens {Geum urhanum). 



Locality. — West Wood, nr. Hythe, Kent (4, vi, 15). 



Alate females found under the leaves, each surrounded with 

 small green larvfe, the latter with antennse of five segments; third 

 to fifth darkened apically. The venation of the wings is very 

 marked and the hind wings in one specimen have one obHque 

 vein one side, two the other. I fancy this was the insect I found 

 in the New Forest in August, 1915, but I unfortunately lost the 

 specimens. 



Myzus mercurialis, nov. sp. 



Apterous viviparous female. — Pale to bright green ; antennae 

 darkened except at base. Cornicles dusky at apices. Apices of tibiae 

 and the tarsi dark. Eyes red. Antennae a little longer than the 

 body ; basal segment much larger than second ; third longer than 

 fourth, with a single sensorium near base and with the second hair 

 on one side capitate ; fourth segment a little longer than fifth ; sixth 

 not quite so long as fourth and fifth, its basal area not half as long as 

 fifth. Cornicles thin and cylindrical, very little thicker than third 

 antennal segment and about as long ; two strige at apex. Cauda 

 greenish-yellow, about half the length of the cornicles, spinose at 

 edges, flattened sculpturing on surface ; three hairs each side and 

 one subapical. Proboscis green, dark at apex, rather broad, and just 

 reaching the third coxae. 



Lengtli, I'O to 2-2 mm. 



Food Plant. — Dog's mercury {Mercurialis officinalis). 



Localities. — Ventnor, Isle of Wight (10, v, 11) ; W\ye 

 (24, iv, 16). 



An obscure green species found in abundance in both localities 

 in the spring. The cauda with its flattened dorsal sculpturing 

 is marked. 



Myzus galiifolium, nov. sp. 



Alate viviparous female.- — Generally resembling Aphis galii, 

 Kaltenbach, in colour, but with long cornicles. Antennae dark, 

 except base of third segment. Cornicles and cauda black. Tibia pale 

 except at apex and to some extent the base of cornicles. Antennae 

 nearly as long as body, basal segment much larger than second ; third 

 longer than fourth, but not so long as sixth, with 11-14 sensoria 



