May, '07] ENTOMOLOGICAL NEWS. 187 



run broadly up to vertex and end truncately, and there are no yellow 

 spots on vertex. Antennae wholly yellow except for a black line on 

 top of scape which extends, though broken, along the basal half of 

 flagellum also. Segments 1-6 of abdomen with complete transverse 

 bright yellow bands, broad on 1-4 with the anterior middle notched 

 and with an oblong black mark near the posterior margin on each 

 side. Legs bright yellow, except for black marks on the back of 

 anterior and intermediate tibiae, femora, trochanters and coxae, the 

 posterior coxae, trochanters, and basal two-thirds of femora black. 



Types: — Southern California, <$ , 9 . (Collector unknown). 

 Also a single $ paratype from type locality. This species is 

 notable for the light face in both sexes. The general appear- 

 ance of 5. hesperia, is much like S. scutellaris, known only in 

 the $ , which was described from the same State, but it is 

 much smaller and differs in several minor details. The hind 

 legs of the S are suggestive of S\ pictipes, which is, however, 

 otherwise quite different. 



Notes on Lachnus platanicola Riley. 



By Warrex T. Clarke, Auburn, Alabama. 



Early in November of last year, 1906, the writer's attention 

 was drawn to certain aphids found upon limbs of the sycamore 

 in the city of Montgomery, Alabama. On investigation, these 

 proved to be representatives of the species Lachnus platanicola, 

 first described and figured by Riley, in American Naturalist, 17, 

 p. 198; 1883. Townsend, in Insect Life 1, pp. 197-198, 1888, 

 and Oestlund, Aphidae of Minnesota, p. 32, 1887, also made 

 brief mention of the insect, while Weed, in Insect Life, 3, pp. 

 286-287, re-describes and figures it very fully. Reference is 

 made to the above bibliography for technical description of this 

 giant among the Aphididae, the notes here given being merely 

 intended to record its presence in Alabama as late as November, 

 1906, and further to record certain observations made upon it 

 at the time. 



My notes read as follows: "Lachnus platanicola Riley, on 

 Platanus occidentalis (sycamore). Localities, Montgomery 

 County, Randolph County and Mobile County, Alabama. 

 Invariably on under sides of smaller limbs. Colonies large and 



