60 DESCRIPTIONS OF THE 



Ensina. — Desvoidy. 



Distinguished by the pale colour, the head narrowed and lengthened 

 in front, the long and bent mouth, the short and slender telum, 

 and the almost spotless wings. 



Body downy; peristoma long and angular; epistoma prominent; 

 feelers long and slender ; third joint of antennae short, nearly 

 round ; telum of female flat, longer than half the abdomen ; fifth 

 long nervure not reaching the border of the wing ; cross nervures 

 straight and upright. 



Sp. 1. Ens. sonchi. Yellow; thorax grey, and abdomen 

 green above, wings white, sometimes with a few very small 

 brown spots. (Plate I. fig. 1.) 



Musca sonchi . Linn. Syst. Nat. II. 998 ; Gmel. Syst. Nat. 



V. 2857. 121. 

 Tephritis sonchi . Fallen, Dipt. Suec. Ortal. 14. 23. 

 Trypeta sonchi . Meig. Europ. Zweiflug. Ins. V. 345. 50. 

 Trypeta obsoleta Wied. Meig. Europ. Zweiflug. Ins. V. 349. 



60. 

 Ensinae chrysanthemi, herbarum, pratensis, linarise, scor- 

 zonerse, doronici . Desvoidy, Essai sur les Myodaires, 752. 

 753. 1-6. 



Yellow : head black behind, clothed with white hairs, and round the 

 eyes with a few black hairs ; border of the forehead red ; mouth 

 almost white ; thorax clothed with white hairs and black bristles, 

 grey above, black beneath, yellow before and on each side ; scu- 

 tellum pale green with a yellow border, red at the tip, the disk 

 sometimes grey or green , metathorax black ; abdomen dark 

 green above, with a band of yellow on the hind border of each 

 segment, clothed with grey or black hairs and bristles ; telum 

 black, of the female with the tip, and sometimes a spot on each 

 side near the base yellow ; legs yellow, sometimes brown above ; 

 thighs sometimes tawny ; 5th joint of tarsi, and sometimes 3d 

 and 4th joints of 4 hind tarsi brown ; wings white, with a few 

 hardly seen cross bands, and along the upper border some much 

 darker and more marked small brown spots, varying in number ; 

 nervures brown, yellow towards the base of the wing ; borders of 

 cross nervures brown ; poisers lemon colour. (Length of body 

 1 — H line ; of wings 2— 2| lines.) 



Common in the south and west of England during the 

 autumn. 



