24 



THE CANADIAN ENTOMOLOGIST 



Legs dark gray, tibiae and tarsi of the fore pair and tarsi of the 

 others, ochero'us. Abdomen dark purplish gray above, yellowish 

 beneath toward the tip, anal tuft yellow. 

 Expanse: 5-5.5 mm. 



Twenty-two specimens bred from mines on red oak (Quercus 

 rubra L.) Cincinnati, O.; one captured specimen, taken at Oak 

 Station, Pa., May 17th, 1910, by Mr. Fred Marloff. 



The mine is a pale greenish gradually broadening linear tract, 

 3.5 mm. wide at the end, with a blackish line of frass through the 



centre. Larva yellow even when 

 very young; thus this mine can 

 early be distinguished from the 

 other linear mines on oak. Co- 

 coon brownish ocherous, obovoid. 



There are three generations a 

 year, and, in favourable seasons, 

 a fourth. Mines containing full- 

 grown larvae may be collected in 

 the middle of June, the latter part 

 of July, the end of August and 

 beginning of September, and dur- 

 ing the latter part of October up to as late as the ninth of Novem- 

 ber, producing imagoes during the summer within two weeks after 

 pupation. The mines occur most commonly on red oak, but also 

 on pinoak((). palustris Du Roi) on black oak (Q. velutina Lam.) and 

 on Q. marylandica Muench. 



A cotype in Mr. Marloff 's collection. 



Fig. 8. — Mine of .V. tcrinmr/la. 



NEW AMERICAN CHRYSOPID/E. 



BY NATHAN BANKS, EAST FALLS CHURCH, VA; 



The following five new species of Chrysopida? are among 

 recent additions to my collection from Central and South America 

 Of particular interest is the Nothochrysa, which is quite different 

 from the other species of the genus from South America and more 

 allied to our Californian one. 



Chrysopa rufolinea, n. sp. 



Yellowish green, a sinuate band of reddish below antenna', and 

 one across base of the clypeus, a red spot on the cheek, a red line 



Januaiy, 1914 



