October, '09] JOURNAL OP ECONOMIC ENTOMOLOGY 349 



Winged viviparous female (Fig. 3). — General color grayish green, the gray 

 being due to a pruinose secretion on the body ; wings hyaline, veins clear ; first 

 5 segments of antennae, tip of beak, distal ends of femora and tibiae and nec- 

 taries dusky yellow ; eyes and thorax dark brown ; last two segments of an- 

 tennae and the abdomen green. The abdomen of some specimens has 4 trans- 

 verse, dusky dorsal bands, the edge of the fourth band coinciding with the 

 base of the nectaries. These bands do not extend entirely across. They often 

 merge to form an oblong black patch. An orange-colored band crosses the 

 abdomen between the nectaries and seems to be fairly constant in all speci- 

 mens. 



Eyes semi-prominent ; beak reaching beyond the second pair of coxae ; nec- 

 taries short and cylindrical ; cauda obtuse, set with a few short hairs ; an- 

 tennae shorter than body and very much roughened along segments 3, 4 and 

 5 by numerous irregular sensoria ; segment 3 with thirty to forty prominent 

 sensoria, 4 with ten to fourteen, and 5 with one large sensorium always pres- 

 ent and occasionally also one very small one ; segments 1 and 2 equal in 

 length ; segment 3 longest, slightly longer than 6 and 7 together. 



Measurements: Lengtli of body, 2.30 "^'"; width, .9.5 '"™. length of wing, 3.15 

 ^^•, total expanse, 6.9'"™; length of auteuual segments, (1) .07™™, (2) .07 ™™, 

 (3) .40 ™™, (4) .23 ™™, (5) .15 ™™, (6) .11 ™™, (7) .26™'"; total length, 1.35 ™™; 

 length of nectaries, .16 '"'"; cauda, .13 '"™; width of cauda at base, .10 ™™. 



Wingless viviparous female. — General color green, covered with a fine gray 

 pruinosity which gives them a dark appearance ; eyes dark red ; femora, tibiae, 

 antennae, nectaries and cauda dusky ; remainder of body green ; abdomen 

 with a deep orange spot at the base of each nectary, and two or three 

 transverse dusky bands crossing just behind the nectaries; antennae and head 

 with a few short hairs; cauda obtuse: antennae less than half as long as the 

 body, segment 2 being the shortest and 7 the longest ; nectaries cylindrical and 

 shorter than in winged specimens. 



Measurements: Length of body, 2.6 '""^; width, 1.2 ™'"; length of auteuual 

 segments, (1) .09 ™'", (2) .06'"™, (3) .28"°', (4) .13™™, (5) .1™"", (6) .09™™, (7) 

 .27 ™™; total length, .95 ™™; length of nectaries, .24 ™™; cauda, .7 ™™; width of 

 cauda, .08 '"™. 



Pupa. — General color green : antennae and tibiae dusky at distal ends ; eyes 

 black ; in other respects similar to wingless females ; length of body, 2mm ; 

 length of antennae, .9mni. 



AN APHIS ON MAPLE IN CALIFORNIA 



DrepanosipJmm platanoides Schrank 

 Specimens of a large and beautiful aphis {Drepanosiphum plat- 

 anoidcs Schrank) were sent to this bureau during the year 1908 by 

 several correspondents on the Pacific coast. This species does not 

 seem to have been noticed previously in North America by anyone 

 interested in the study of aphides, and since all the specimens at 

 hand came from California perhaps it does not occur in the more 

 eastern states. 



In the year 1848 Francis Walker^ gave an account of the life his- 



^Ann. and Mag. Nat. Hist. (2), vol. 1, p. 250-254. 



