86 BRITISH APHIDES. 



under Aim flexuosa, at the end of May, in the above 

 locality. 



The brown insect is so commonly mixed with the 

 green, and it agrees so well with it, except in colour, 

 that I assume that the insects are identical. It is not 

 uncommon under the tufts of Carex, on the moors 

 round Alnwick, in Northumberland. 



I have not met with it under the sand heaps in 

 Surrey. 



' Genus XXXIII.— TYCHEA,* Passerlni, 



Antennas composed of five almost equal joints. 

 Abdomen marginate. Eyes none. Legs short, with 

 two small claws. Cornicles and tail none. Rostrum 

 variable in length according to age. Winged forms 

 unknown. Habitat very similar to the preceding 

 species ; mostly being found at grass roots. Several 

 species also are denizens of Ants' nests. 



Passerini describes five species as inhabiting Italy, 

 all of which, I believe, are inhabitants of Great 

 Britain. 



Tychea teivialis, Pass. Plate CXXYII, figs. 3, 4. 

 Viviparous female. 



Globose or ovate, rather flat, yellow or ochreous, 

 smooth. Eyes none. Antenna) very short. The 

 joints vary much in the different moults. In the full- 

 grown insects the third joint is much the largest. 

 In the fundatrix the antennas and rostrum are both 



* If from Ivxiw, nanciscor, or asscquor, the allusion is not obvious. 



