311 



M-hich it forms numerous small deep tunnels, as it also does in fruit 

 trees. No remedial method, other than the destruction of the tree, 

 is effective. Lygus pratensis, L., the tarnished plant bug, is reported 

 on tobacco. This pest is difficult to control, but a thorough spray 

 of Black-leaf 40, 1 pint in 50 U.S. gals, water, to which has been added 

 2 lb. laundry soap, should prove effective. Larvae of the green- 

 house leaf- tier, Pionea (Phlyctaenia) ferrugalis, Hb., have been most 

 destructive, feeding on nearly all common vegetables, many native 

 weeds and ornamental herbaceous plants both under glass and out 

 of doors. A good remedy is lead arsenate at the rate of 1 lb. in 

 10 U.S. gals, water. A flea-beetle, Oedionychis sextna-culatu, 111., was 

 found feeding on ash (Fraxinus). Where this is grown as a shade 

 tree or for timber, these beetles may become of economic importance. 

 The larvae of the grape-vine sawfly, Erythraspides pygnuieus. Say, 

 were found feeding in colonies on the underside of grape leaves. This 

 insect, of which there are two broods each season, can be controlled 

 by spraying wdth lead arsenate, 3 lb. of the paste in 50 U.S. gals. 

 water. The small moth, Eudemensia bassetteUa, Clem., was bred from 

 a scale-insect, probably Kermes sassceri, collected on oak. The 

 hickory-gall aphids, Phylloxera caryaecmdis. Fitch, which attacks the 

 new shoots and leaf-stems in Jime, causes annually an early fall of 

 leaf. Trees would probably be protected from attack if sprayed with 

 kerosene emulsion or nicotine solution when the buds are opening. 



Smith (H. E,). Notes on New England Tachinidae, with the Descrip- 

 tion of one New Genus and two new Species. — Psyche, Boston, 

 Mass, xxiv, no. 2, April 1917, pp. 54-58. 



Psendotachinomyia webberi, gen et sp. n., and Sciasma frontalis, 

 sp. n., are described. The larvae of Pelatachina pellucida, Coq., 

 emerged from the larvae of Vanessa antiopa, L., during August, 

 hibernating as pupae through the winter. From 344 Lepidopterous 

 larvae taken in the open. 214 puparia of this Tachinid were obtained. 

 This is apparently the first record of this genus having been reared 

 in North America. Compsilura concmnata, Meig. , which was introduced 

 into the United States as a parasite of Lymantria {Porthetria) dispar, 

 L., and Euproctis chrysorrhoea, L., has been found to be particularly 

 prolific as a parasite of V. antiopa. When parasitic on CaUosamia 

 promethea, it hibernates in the pupa of the host. 



WoLCOTT (G. N.). Report of the Entomologist. — Fifth Report Bd. 

 Commiss. Agric. Porto Rico, for the Period from 1st July WIS to 

 30th Jum 1916, Rio Piedras, P.R., (1917), 10th August 1916, 

 pp. 75-99, 3 figs. [Received 19th May 1917.] 



Entomological work during the year included the inspection of 

 plants, seeds, nursery stock and fruits brought into the port of San 

 Juan, the enforcement of quarantine regulations against insects 

 imported from abroad, and the fumigation of insect-infested nursery 

 stock. A special report on the continuation of white-grub 

 [Lachnosterna] investigations will be published later. 



For the destruction of scale-insects of citrus trees, eight months' 

 trial has proved that the best spray is an emulsion of whale-oil soap, 



