890 



CLOVER SEED MIDGE. 



Riley, Ann. Rei)t. Comm. Aj?., 1878, pp. 250-252, 111. 

 Riloy. Ann. Rept, Comm. Ag., 1884. p. 411. 

 Comstock. Ann. Rept. Comm.l Ag., 879, pp. 193-197. 

 Sannders. Rept. Ont. En. Soc, 1881, p. 38, 111. 

 This is not only one of the most alanning of onr clover pests, 

 but may be regarded as oiu' of tlie most to be dreaded insects 

 now infesting tlie valuable crops of the T'nited States. It not 

 only does very serious damag(\ but is spreading with great ra- 

 pidity. Prof. Lintner first discovered it in a limited area in 

 Eastern Xew York. .Now — 188.") — it is known to exist in \\r- 

 ginia, Pennsylvania, Xew Jersey, Ontai'io. Michigan, and all 

 through New York. The fact that the insect may remain in the 

 seed, and thus be carried with it any distance, adds to the 



dangers threatened by 

 this comparatively 

 new pest. 



Fig. l-i-i a shows the 

 fenude midge, ovipos- 

 itor extended ; c, ovi- 

 positor more magni- 

 fied ; f/, head more en- 

 larged : (I shows great- 

 er enlarge m e n t of 

 three Joints of anten- 

 na?. 

 Fig. 145 (I shows maggot or 

 larva; b, head more magni- 

 fied. 



The eggs are oval, pale yel- 



Fig. Uj. 



low, and only .025 m m(.OOIof an inch) long. 



The larva or maggot varies from white to dark orange or or- 

 ange-red. It is when full grown 2 m m (1-12 inch) long. 



