64 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Thorax dark. Wings nearly hyaline, being slightly pellucid, 

 veins frail and dark ; stigma dark gray, 0.10 mm. wide and 0.54 

 mm. long ; total wing expansion, 4.68 mm. Legs black on the 

 distal half of the femora ; distal part of the tibia, and the tarsum 

 dark brown, remainder pale brown. Legs are normal in pro- 

 portion. 



Abdomen pale brown, with four black spots on each lateral 

 margin ; two transverse dark bars caudad the honey-tubes ; 

 mesocaudad the honey-tubes and bordering their bases are two 

 larger patches of the same color. The portion ventrad the style 

 is also dark. The honey-tubes are black, imbricated, and al- 

 most cylindrical, being a little wider at the base than at the 

 distal end ; length, 0.18 mm., being nearly twice the length of 

 the tarsum. Style black, hirsute, bristled, and bluntly rounded 

 at the apex; 0.10 mm. long, being equal to the tarsum in length. 



This form was taken January 3, on the greenhouse Hibiscus, 

 It seems to be common in greenhouses during the winter. Be- 

 ing gregarious, it colonizes the dorsal surface of the leaves. 



Rhopalosiphum violae Pergande. Plate XV, fig. 78. 



Head black. AntenniP black, hirsute, first joint glabrous 

 length of joints : I, 0.109 mm. ; II, 0.07 mm. ; III, 0.48 mm. 

 IV, 0.34 mm. ; V, 0.36 mm. ; VI, 0.14 mm. ; VII, 0.56 mm. 

 total length, 2.00 mm. Sensoria circular, moderately small, and 

 numerous, being about thirty-six on the third joint ; on the 

 fourth are eleven, nearly in a straight row ; the usual one is 

 near the distal end of the fifth ; one large one and a cluster 

 near it of six small ones near the distal end of the sixth. Eyes 

 pinkish red ; ocular tubercles well developed and of a lighter 

 tinge than the eyes. Beak grayish and extending to the meso- 

 coxse, being 0.45 mm. long. 



Prothorax grayish black with membrane of pinkish yellow. 

 Dorsum of the thorax black with a membrane of pinkish yel- 

 low. Wings hyaline ; discoidals all black with broad, fainter 

 black borders ; all very characteristic. Stigma grayish black, 

 0.47 mm. long' by 0.129 mm. wide ; total wing expansion, 4.89 

 mm. Femora of legs black, except the proximal parts, which 

 are pinkish yellow. The tibia are dark yellow, with the distal 

 parts the darkest. Tarsi are a shade lighter and hirsute. 



Abdomen is pinkish yellow with about four black splotches 



