22 
the same as those of the spring migrant from the witch-hazel, though 
they are uniformly smaller and measure from 0.8 to 1.4™™, or rarely 
1.6™" in length, with an expanse of wings varying between 3 and 
(6) 
Fia. 10.—Hormaphis hamamelidis; sixth generation, return migrant: a, pupa, denuded, showing 
arrangement of pores; b,imago; c,antenna—much enlarged (original). 
4.4™". The antenne are also proportionally shorter, with the third 
joint divided by twenty to thirty annulations. They are dark pur- 
plish brown, the prothorax paler, and the eyes and thoracic lobes 
black, the legs yellowish brown. 
HIG. 11.—Hormaphis hamamelidis; sexual generation: a, young larva; b, male; c, female—much 
enlarged (original). 
Seventh, or sexual generation. (Fig. 11.) Female, first stage.— 
The young larve of this generation are oval, with the median line 
slightly and the dorso-lateral line deeply impressed, and measure 
