502 



THE ENTOMOLOGIST. 



The following plan shows the position which he assigns to 

 the Mymaridas amongst the Proctotrupii or Oxyuva. 



A. Hind wings with a flap-like appendage, or the 



wingless female with raptorial legs. - Dryinoid^. 



B. Hind wings with no flap-like appendage. 



a. Fore tibiae with two spines. - - Ceraphronoid^. 



b. Fore tibife with one spine. 



=:= Mandibles not dentate. - - - Proctotrupoid^. 



*-'fi Mandibles dentate, 

 f Sides of the abdomen with a rim beneath. 

 Antennse seated on the border of the 

 mouth. 

 I Wings with a marginal branch, and sometimes 

 with a stigmatic branch. No ocelli when 

 wingless. 

 II Wings with no marginal nor stigmatic branch 



Ocelli always present, 

 ff Sides of the abdomen with no rim 



seated much above the mouth. 

 I Hind wings with no trace of a middle vein. 

 § Hind wings very small, almost linear. - 

 §§ Hind wings broader, not linear. 

 II Hind wings with a middle vein. 

 § Fore wings either without or with a regular basal 



vein. Flagellum with no small joints. 

 §§ Fore wings with an irregular curved basal vein, 

 which does not extend to the hind border- 

 veins. Flagellum with one small joint. 



SCELIONOII)^. 



Platyoasteroidje . 

 A-ntennas 



Mymarotd^. 



DlAPRlOIDai. 



Belytoid^. 



HELOROIDiE. 



Francis Walker. 



On Aphides and Honeydew. — The observation, " On the 

 extreme twigs," &c., quoted in the 'Entomologist' for August 

 (Enlom.vi.463), does not seem to be conclusive that the honey- 

 dew is not caused by Aphides. It does not follow, because there 

 were no leaves directly above those on which the honeydew 

 was seen, that it was not caused by Aphides, for a slight 

 movement of the air would carry the honeydew in falling out 

 of a perpendicular line, and if the trees mentioned are high 

 there are abundance of leaves from which it might fall on the 

 lower leaves. The Aphis of the lime may be seen in May, and 



