INSECTS INJURIOUS TO CLOVER. 



371 



to attack the clover, and nearly or quite as many draw their sus- 

 tenance from our grasses. It is not probable that all this in- 

 crease is due to more close study and observation. Insects are 

 constantly leaving our wild plants, either from choice or neces- 

 sity, and adopting our cultivated plants as a more acceptable 

 diet. We are constantly introducing species from the old world, 

 some of which are of recent importation, and may well cause 

 solicitude because of the serious damage they do. Both of these 

 causes, change of food, habits and importation will continue to 

 increase these pests, so that constant study and experiment will 

 be necessary to ward off the threatening danger. 



Insects Injurious to Clover. In the report of the New York 

 Agricultural Society for 1881-82, p. 190, Prof. J. A. Lintner 

 gives a list of insects which infest clover in Europ^e. There are 

 71 species. Nearly every genus represented by these foreign 

 species is included in our insect fauna. The list is of much in- 

 terest to us, the more so as the noxious insects of Europe are 

 constantly being introduced into America. The following is the 

 list: 



Sitones flavescens Morsham. 



Sitones lineatus Linn. 



Phytononius nigrorostris Fabr. 



P. meles var. trifolii Herbst. 



Tychius polylineatus Germ. 



Tychius pisirostris Fabr. 



Ceutorhynchus lineatus Payk. 



Apion seniculum Kirby. 



Apion virens , Herbst. 



Apion flavipes Fabr. 



Apion fagi Linn. 



Apion a ssi 1 1 1 i 1 ( Kirby. 



Apion trifolii Linn. 



Apion gracilipes J>ietrich. 



Apion varipes. Germ. 



Apion apricans Germ. 



Apion craccae 



Coccinella impuncta r 



Hylesinus trifolii Mull. 



Labidostomis longimana Linn. 



Lycaena Amyntas Schiffm. 



Lycaena Alexis Treits. 



Lycaena ^fEgon Schiffm. 



Lycaena Cyllarus Fob)'. 



Lycaena Dolus Hubn. 



Lycaena Adonis Hubn. 



Lycsena Argus Hubn. 



Melitaea Athalia Esp. 



Melitaea Cinxia 



Colias Hyale Linn. 



Leucophasis sinapis JAnn. 



Zygaena Minos Hubn. 



