100 Maine Agricultural Experiment Station. 1918. 



SCANDIX. Venus' Comb. 



S. Pecten-Veneris L. 



Aphis papaveris Fab. Kaltenbach, 1874, p. 269. 



SESELI. 

 S. sp. 



Aphis scselii Licht. (ined.). Liechtenstein, La Flore. 



SIUM. 



S. falcatum. See Falcaria vulgaris. 

 S. latifolium L. 



Aphis rumicis Linn. Walker, 1850a, p. 19. 



THASPIUM. Meadow Parsnip. 

 T. aurem Nutt. 



Aphis thaspii Oestlund. Oestlund, 1887, p. 58. 



TORDYLIUM. 

 T. apulum L. 



Aphis carotae Koch. Macchiati, 1883, p. 239. 



TORILIS. 



T. Anthriscus (L). Bernh. (Caucalis Anthriscus). 



Aphis anthrisci Kalt. Kaltenbach, 1874, p. 273. 

 Aphis papaveris Fab. Kaltenbach, 1874, p. 269. 



UMBELLIFERAE. 

 U. sp. 



Acyrthosiphon navozovi Mordwilko, 1914, Faune de la Russie, p. 



196. 

 Siphocoryne pastinaceae Koch (not capreae Fab.). Theobald, 1912, 

 Rept. Ec. Zool., p. 89. 



EXPLANATION OF FIGURES 



Figure 4. Showing antennae, thoracic wax-plates and hind tarsi, all 

 drawn to same scale. 



Prociphilus corrugatans? Spring migrant from Crataegus (67-12, 

 50-04) : P. alnifoliae? Spring migrant from Amelanchier (27-06, 40-06, 

 29-10, 16-11) : P. (Trama) erigeronensis. Fall migrant from Solidago 

 (78-06) ; Apterous female from cultivated aster. P. sp. Fall migrants 

 found alighting at base of trunk of Mountain Ash, Pyrus sp. (164-12). 



Figure 5. Showing antennae, thoracic wax-plates and hind tarsi, all 

 drawn to same scale. 



Prociphilus tessellata. Spring migrant from Acer (24-11) ; fall mi- 

 grant from Alnus (120-16) : P. xylostei, spring migrant from Lonicera 

 (53-14, 96-16) : P. approximates, spring migrant from Fraxinus (1-16- 

 21) : P. fraxinifolii, spring migrant from Fraxinus (62-09) : P. venafus- 

 cus, spring migrant from Fraxinus (55-06, 85-11) ; fall migrant (100-08). 



