64 THE CANADIAN ENTOMOLOGIST. 



Apterous viviparous female. — General colour yellow, tips of the 

 antenn?e, tibia and tarsi dusky. Antennae six-segmented and not on 

 antennal tubercles. Spur of sixth segment one-third as long as segment, 

 fifth and sixth equal ; four shorter than five, and third as long as the 

 fourth, fifth and sixth together ; eyes undeveloped, nectaries as in alate 

 form. Cauda and end of abdomen a little more pointed. Abdomen with 

 three or four dorsal stripes. Antennae, legs and body with numerous fine 

 hairs. 



JSIeasurements. — Length of body, 1.68 mm.; width, 1.09 mm. Length 

 of antennal segments, I, .05 mm.; II, .05 mm.; Ill, .18 mm.; IV, .052 

 mm.; V, .065 mm.; VI, .065 mm.; spur, .03 mm.; length of nectaries, .04 

 mm.; Cauda, .19 mm. 



This species was very abundant in the cotton fields on the roots of 

 (Eiiothera s^. \\\) io \\\t\\\w^ that the migration commenced, about the 

 first of May. After the last of May very few specimens were to be found. 

 A search was made for the summer host-plant, but without success. The 

 first winged specimens were taken May 2, 19 10. 



Georgia^ n. gen. 

 This genus is probably closely related to both Schizoneiira and 

 Pemphigus^ and may prove to be the dividing genus. The wings are 

 veined, as are those of the si)SGies which belong in Schizo?ieura, while the 

 antenmie are similar to those species belonging in the Feinphigus group. 

 The stem mother has five segmented antennae, with a very short spur. 

 Antennae of the alate females with six segments and a short spur, segments 

 three to five being more or less corrugated on the outer side, the corruga- 

 tions being rudimentary sensoria. Front pair of wings with the cubital 

 vein once forked. Hind wing with but a single oblique vein, which is 

 sometimes foiked about a ihird of the way from its base. 



Georgia ulmi, n. sp. 



Apterous stem motJier. — General colour reddish-brown ; head short 

 and dished, body oboval in shape. Antennae short and with five seg- 

 ments, the spur of the fifth being very short; third longer than the fourth, 

 fifth and spur; eyes small and apparently simple. Nectaries are but pores, 

 Cauda very short and broadly rounded. 



Measurements. — Length of body, 1.5 mm.; width, 1.17 mm. Length 

 of antennal segments, I, .04 mm.; II, .056 mm.; Ill, .15 mm.; IV, .07 

 mm.; V, .042 mm.; spur, .021 mm. 



