ENTOMOLOGY. 767 



of P. attra always mines along the leaf rib. Larva of P. flavoscutellata 

 does not pupate in the leaf but hides in the earth; that of P. bipunctata 

 mines the upper surface of the leaf and pupates in the earth. The 

 larva of Agromyza pulicaria always ends its mined passages with 1 to 

 \h spiral turns. jSear the time of pupation the larva assumes a lively 

 green color, closely resembling the leaf. The larva of A. strigata 

 pupates in the leaf. In Anthomyia nigritarsis several larvae generally 

 mine in the same passage. Sometimes several groups are met with in 

 a single leaf and the latter in such cases is completely hollowed out. 

 This species especially is to be considered as injurious in contrast to the 

 true miners of the last 2 genera. 



The author believes that the genera Phytomyza and Agromyza may 

 have been derived from a form related to Anthomyia. To this form 

 Agromyza stands nearest, followed by the subgenus Ophiomyia. 



A new squash bug, F. H. Chittenden (Ganad. Ent., 30 (1898), Xo. 

 9, pp. 239, 240). — While investigating the insects affecting cucurbits 

 the author discovered that in addition to the common squash bug a 

 second species is present in certain parts of this country. This insect 

 (Anasa armigera) has been observed in a number of places around 

 Washington, D. C, and it appears to have very much the habits of the 

 more common squash bug, A. tristis, preferring the squash to all other 

 cultivated plants, but feeding on the cantaloupe or other cucurbits when 

 the squash is not available. This new insect is said to be much more 

 active than the common form and has a later season, appearing 3 weeks 

 later and remaining in the held after the common species has gone into 

 hibernation. In size A. armigera is nearly the same as A. tristis, but 

 may be readily distinguished from it by a broader protborax and more 

 prominent angles, the reflected sides of the abdomen showing 4 promi- 

 nent white marks on the hemelytra, and its armed femora, from which it 

 derives its specific name. The author believes this is a more southern 

 insect and is not liable to become a serious pest in its northern range, 

 although it is capable of severely injuring late crops of all cucurbits. 

 In addition to the localities already mentioned this species is known to 

 occur in Kansas, western Iowa, and Florida. 



Scale insects, C. E. Chambliss (Tennessee Sta. Bui., Vol. X, No. i, 

 pp. 141-151, pi. l,fig. 1). — Notes are given on the San Jose and other 

 scale insects which have been observed in Tennessee. At present the 

 San Jose scale is known to occur in 4 localities in the State. So far as 

 reported its food plants in Tennessee are the apple, peach, plum, pear, 

 apricot, grape, and English walnut. The life history of the scale is 

 given and suggestions made for combating it. From experiments con- 

 ducted at the station it was learned that two applications of either 

 whale-oil soap or caustic potash soap used at the rate of 2 lbs. per gal- 

 lon of water is very effective in destroying the scale. Its efficiency is 

 greatly increased on trees having a very rough bark by brushing the 

 trunks and larger limbs. 



