HIOKOHT. LEAYES^IilTTLE HICKOHY APHIS. 168 



The winged Moth measures from 0.65- to 0.80 in length to the tip of itsftbdomeo 

 aad the expanded wings are 1.70 to 2.20 across, the females being larger than the 

 males. It is of a pale ochre yellow color, hairy above, the abdomen on its under side 

 covered with scales of a whitish and somewhat silvery appearance, with a row of 

 ■tawny spots in the middle in the female; a band in front between the eyes, two dots 

 •on the neCk and the inner edge of the sjioulder covers tawny; eyes spotted with 

 black; antennae three-fourths the length of the body, tawny yellow, with two rows 

 of teeth along their inner sides, which are short in the female and in the male long 

 and comb-like. Fore wings long and narrow, somewhat pointed at their ends, nankia 

 yellow freckled with tawny yellow atoms, and with the veins and a ring surrounding 

 •each of the spots ta way yellow; spots mostly round or oval, whitt^ and somewhat 

 transparent, arranged in three rows extending obliquely across th,e wings parallel with 

 the hind margin, each row having one spot between each of the veins, the number 

 being eight in the two hindmost rows and six in the forward one; the third spot in 

 the middle row the largest; the forward row situated half way between the middle 

 one and the base, with twa additional spots behind and two forward of it, and a largo 

 irregular spot upon the inner margin at its base ; under side similarly colored and 

 marked. Hind wings whitish, thin and semitranpparent, without spots. The spiral 

 tongue is almost as long as the antennae. The feelers project horizontally forward 

 •and are clothed with hairs similar to those upon the head, their apical joint being 

 covered with scales only. 



On the under surface of the leaves, sucking their juices; small flattish pale yel- 

 low lice, their antennae with black rings. 



The Little Hickory Aphis. .Aphis Caryella. 



The extensive genus. Aphis., several species of which we have 

 liad occasion to treat of in the preceding pages, is well character- 

 ised by having three oblique veins crossing the disk of the fore 

 wings, the third one of which is twice forked, and seven-jointed 

 antennae. The species, however, which are embraced in thi 

 genus admit of being divided into smaller groups. This has beea 

 shown in a very able manner by M. Kaltenbach, whose arrange- 

 ment is reproduced by M. Amyot in his valuable review of these 

 insects in the Annals of the Entomological Society of France, 2d 

 series, v. 473-480. But none of the sections which these authors 

 define appear to present diflferences of sufficient value to warrant 

 their elevation to the rank of genera, although Mr. Curtis in his 

 British Entomology has proposed to separate those having the 

 antennae shorter than the body, and the beak arising from the 

 lower part of the head instead of between the base of the fore 



