48 KANSAS UNIVERSITY SCIENCE BULLETIN. 



sized and dark. Stigma dark brown, U.IO mm. wide aud 0.34 

 mm. long. Total wing expansion, 5.80 ram. Legs liirsute and 

 normal. Tarsi, distal ends of tibia and femora dark, rest 

 lighter in color. 



Abdomen dark green ; lateral tubercles at the base of the ab- 

 domen not as large as those on the prothorax. There are two 

 of these, one on each side of the abdomen. Honey-tubes black, 

 imbricated, cylindrical ; length, 0,19 mm., or about one-fifth of 

 their length longer than the tarsi, extending nearly to the base 

 of the style. Latter black at its distal half, the color extend- 

 ing to the base along the margins, remainder concolorous with 

 the abdomen ; slightly hirsute and armed with short spines. 

 Length, 0.18 mm., or nearly to the honey-tubes in length. To- 

 tal length of the body, 1.81 mm. 



This form was taken April 25, on the wild gooseberry (Rlbes 

 gracile) . It is gregarious and colonizes the ventral side of the 

 leaves, causing them to curl. It is similar to the form that is 

 found on the terminal stems, but has more sensoria, lateral 

 tubercles are not as conspicuous on the abdomen, and no color 

 marks here, as the other form has. 



Aphis aubletia, n. sp. Plate XII, fig. 68. 



Head black. Antennae dusky, imbricated, and bare ; length 

 of segments : I, 0.05 mm. ; II, 0.05 mm. ; III, 0.21 mm. ; IV, 

 128 mm.; Y, 0.14 mm.; VI, 0.128 mm.; VII, 0.22 mm.; 

 total length, 0.90 mm., extending one-third its length caudad 

 of the abdomen. Sensoria rather large, circular, and nearly in 

 rows; seven on the third joint, three on the fourth, two on 

 the fifth, and one large one with a cluster of small ones at the 

 distal end of the sixth. Eyes black ; ocular tubercles have a 

 reddish tinge ; ocelli not very prominent, bordered with a red- 

 dish tinge. Beak light brown, extending to the metacoxte, 

 being 0.54 mm. long. 



Prothorax dusky, cephalic border black. Thorax black, mem- 

 brane dusky. Wings stippled with irregular dark spots, which 

 gives them a dark cast. All veins robust, and all equal in 

 breadth except the subcostal, which is broader. Second dis- 

 coidal of the hind wing sometimes forked, as shown in the illus- 

 tration. Total wing expansion, 4.30 mm. Legs stout, hirsute, 

 and pale brown ; tarsi and distal end of the tibia dusky. 



