CLOVER-LEAF 08C1>'IS. Ml 



rioiiH Imrm, imd iiiili'ss it clmngo its huliitswill never bo u serious 

 pest. W«' lianlly iiccil tlicii to (lisciiss rciiu'dii'H for it.s nivagcs. 

 OsciiiiN irifolii liiirt^ess. Cluv(>i''lear Oseiiih. 



(h-ilcr Itiph'rii. Faniibj Ost'inithr. 



HurKi'ss, Ann. Kept Connn. AkiI, IHTiJ, j,. -^'Ol, 



Conistock. Ibid, pp. ',»0(), :>0l. 



Lintnor, Kept. N. Y. Ag. S)c. \HH2, p. a().">. 

 Fitch UuscrjlKMl a spi'ities of this ;;imius, 0. tibialis, which at- 

 tacks the wheat stem. Sec Kitch't^ h'opt., 1st and '^d, p, IJOO, 

 and for illustration IM. 1, Fig. 5th. Dr. Hilcy dcscribi's Osi-inis 

 brassica?, which attacks the cabbajrc. |{ci)t. Coinm. Ag. 1SS4, p. 

 :i'4'i. which is fully illustrated 11. VIII., Fig. .".th, mIu.'Ii cut 

 would answer in a general way for the Clover Leaf Oscinia. 

 There are several Euroi)ean species which give our friends over 

 the sea some anxiety. 



The clover Oscinis is quite like our Anthomyia in habits and 

 general appearaiu'e. The eggs are very small and white. The 

 larvjB greenish-white, slender, tai)ering towards the head. They 

 are 1.7 m m long. The puparium is shorter, oblong, and of 

 a brown color. The lly is yellow, with the dorsal siirfai'o of its 

 abdomen and thorax black. It is (piite hairy. The lerigili is 

 1.3 ni m, about .05 of an inch. The eggs are probably laid in 

 ^lay or in early June. The larva mines the leaves and stems 

 of white clover, possibly red as well, much as the radish mag- 

 got gouges out the plant on which it feeds. Late in June the 

 maggot crawls from its tunnels and falls to the earth, which it 

 enters to form the puparium. The flies appear about two 

 weeks later. There are two and may be three broods a season. 

 If these little sappers and miners ever become so numerous as 

 to do serious injury we will have to resort to feeding our clover 

 down and use ensilage for winter. 



49 



