THE CANADIAN ENTOMOLOGIST 175 



than the 5th. Legs green; apices of femora and tibia? and the tarsi 

 black. 



Length 1.5 to 2 mm. 



Oviparous female: 



Apterous. Green to dull yellow, often mottled; head brownish.^ 

 Cornicles black, straight, imbricated. Cauda black. Antenna? not 

 as long as body, of 6 segments, basal one larger than the 2nd, 

 3rd, 4th and 5th nearly equal in length; 6th about as long as 4th 

 and 5th; the 5th and 6th dark; also the 1st and 2nd, remainder 

 green; imbricated, especially apically. The junction of the 3rd 

 and 4th often indistinct. Eyes large, dark. Proboscis reaching 

 past the 2nd pair of legs, acuminate. Pronotum with a large 

 green papilla on each side; abdomen with a large papilla on each 

 side before hind legs and 3 smaller ones between them and the 

 cornicles; sometimes yellowish laterally; also with a few hairs. 

 Cornicles thick, black, cylindrical, slightly expanding basally, 

 imbricated, longer than segment 3 of the antenna?. Cauda promi- 

 nent, dark and very spinose, with 5-6 pairs of lateral hairs curved 

 apically and a median dorsal apical one. Anal plate dark. Legs 

 with dark femora, except just at their base; tibiae pale, dark at 

 the apex; tarsi dark; hind tibia? with a few pores (2-6), or trace 

 of sensoria*; genitalia dark. 



Length 1 to 1.5 mm. 



Male: 



Apterous, dull yellowish-brown, yellowish-green to green. 

 Antennae of 6 segments, not quite as long to slightly longer than 

 the body; 1st segment wider than the 2nd, but no longer; 3rd as 

 long as the 4th ; 4th slightly longer or the same length as the 5th ; 

 6th about as long as the 4th and 5th; in a few I have noticed a 

 single sensorium on the 4th; edges markedly serrated. Eyes large, 

 black. Cornicles black, cylindrical, slightly expanding at the 

 base; not quite as long as segment 3 of the antennae. Femora and 

 tibia? dull green to deep brown, except the apex of the latter; 

 tarsi dark. Cauda black, spinose, with several long lateral hairs 

 bent at their tips. Genitalia black. Penis yellowish. 



Length .8 to 1.0 mm. 



*Gillctt says 10 oval sensoria on hind tibiae. 



