1884.] ^31 



Pitch-brown, or yellow -browii, rather shiny, scantily coTcred with yellow 

 pubescence. Head not very large, slightly rugulose, with the eyes prominent; 

 antennre yellow, club blackish. Clypeus simple in female, but in male produced into 

 an upright and broad plate. Thorax of male sub-quadrate, narrowed in front, with 

 anterior margin produced into a broad plate, similar to that upon the clypeus, sides 

 anteriorly rounded ; that of female longer than broad, sides less rounded, and more 

 gradually contracted in front ; in both sexes closely and finely punctured, with 

 interstices slightly rugulose, posterior angles rounded, rather emarginate, and scantily 

 covered with short, yellow pubescence. Elytra not much narrower than thorax, 

 more strongly and closely punctured, slightly emarginate, with rows of yellow 

 pubescence, apex somewhat rounded. Legs testaceous. Length, f — | lin. 



In conclusion, I have only to ask any Coleopterist wishing for 

 specimens to communicate with me. 



5, Selwyn Terrace, Upper Norwood, S.E. : 

 October ISth, 1884. 



MORE PROOFS OF APHIDIAN MIGRATIONS. 



BY JULES LICHTENSTEIN. 



When Kaltenbach made a character of the habitat of the under- 

 ground plant-lice, and established a division for them under the name 

 of Urdlaiise, Syponomeutes, of Hartig, and EUzohms, of Burmeister, 

 he was perfectly aware of the insufficiency of such a negative character 

 as was that of " winged forms unknown." 



For me, since the very day when I gave the history of the migra- 

 tion of Phylloxera from the roots to the leaves of the plant (1879), I 

 said, I expect to show, some day or other, more astonishing facts of 

 migration from plant-roots to trees, and all gall-making plant-lice will 

 some day prove to be only a stage of life of under-ground species. 



I had soon discovered that Aploneura lentisci, Pass., passes from 

 the Lentisciis galls to the roots of Bromus sterilis, Tetraneura ulmi and 

 Tetraneura rubra from the elm to Zea mais, Cynodon panicum, &c. 



Now, this year, I had the opportunity for the first time since 

 many years to be at leisure in the country in October, and to make 

 new discoveries. I had, as usual, tied round the stems of some elms 

 and poplar the paper strips which so well attract the flying plant-lice 

 of the pupifera stage, and at the same time I searched the roots of all 

 plants where I saw under-ground lice, and kept them in bell-glasses 

 under muslin, to see if really these Hyponomeutes remained always 

 fj|j apterous. I had, amongst these earth lice, the common Bhizobius 

 menthcB, Passerini, which I had kept for years and years without success, 

 I and the Bhizobius sonchi, Pass., which also had given me constantly, 

 in spring and summer, apterous descendants. I was not a little sur- 

 prised now, late in the season and rather cold weather (6° Eeaumur), 



