APHIDES OF THE MIOCENE. 167 



recent Lachninae show these organs clearly as papillae. 

 The size of the insect is small as compared with the 

 modern Stomaphis quercus ; but identity with this 

 recent species is not to be expected at such a great in- 

 terval of time, though affinities may be clearly traced. 



Laohnus (?) cimicoides, Germ, and Ber. Plate CXXXI 



fig. 8. 



This insect, as represented by the figure, is small and 

 globular in shape. The details of the antennae are 

 best obtained by a reference to the figure. It is diffi- 

 cult to make any safe references here to any modern 

 representative species, from the scanty materials at 

 hand. 



The abdomen is slightly bristly ; and small tubercles 

 are to be found near the spots from which they rise, 

 and on the edges of the back. 



Vide Germ, and Ber., ojp. c, p. 5. 



Lachnus (?) longulus, Germ, and Ber. Plate CXXXI, 



fig. 9. 



Body three times as long as broad, its greatest 

 width being at the post-thorax. Antennae hardly 

 half the width of the body, 6-jointed, not counting the 

 bristle-jointed apex. Cornicles wanting. Legs very 

 short. Tail moderately long ; colour above, pale, with 

 five long striped brown spots ; head and thorax brown, 

 with the edges towards the joint brighter in colour. 



A comparison of the proportional joints of the 

 antenna of this and the preceding Aphis will show 

 that they cannot both belong to the same genus. 

 "Without speaking positively on such small evidence 

 as I possess, I would suggest an affinity with Brcbchy- 

 colus stellarice, p. 147, vol ii, of this Monograph, and 

 figured on Plate LXXXV, figs. 1—3. 



Vide Germ, and Ber., vol. ii, p. 5* 



