Fig. 220 C o e n 11 s d c t i 11 s. enlarged 

 (urigitial) 



INSECTS affkctim; park and \voonr,ANn tkf.es 697 



species have been sent to us by a correspondent, wlio took tlicm from 

 about the roots of wheat plants. 



Coenus delius .Sa)" 



A yellowish brown, black-dotted, somewhat oval plant 

 bug ^ inch long. 



This j-ellowish brown, Ijlack-dottcd, somewhat 

 oval plant buy, measurins^; about J s inch in 

 lent^th, was taken at Karner on hard pine in 

 1901. The species has a wide ranoe, it liaving- 

 been listed from Colorado, New Ierse\-, Iowa, 

 and Professor Uhler records it from as far south 

 as Texas and as occurring^ in Massachusetts, New 

 York and other states. 



Lace-winged fly 



Hcmcyohiiis stigtnalcyiis bitch 



Delicate greenish or brownish lace-winged flies witli golden eyes, occur on many 

 plants, their flattened long-jawed ferocious larvae devouring jjlant li< e. 



These flics are rather well known lioth as adults and larvae. The 

 above named species was found in small mmibers on hard pine at Karner. 

 It appears to be a common species according to Dr Fitch, in the Northern 

 and Western States. The general appearance of a lace-winged fly is shown 

 at plate 20, figure 18. The peculiar spheric cocoon is illustrated at 18a of 

 the same plate anil the singular stalked eggs at 18b. The \<)ung aphis 

 lions are very bloodthirsty, even attacking smaller larvae of their own 

 species as well as destroying many aphids. 



Micromus montanus Hag. 

 This grayish brown, lace-winged fly 5^ inch long with a wing spread of 

 ^ inch occurs in September on hard i)ine. The veins are prettily marked 

 with irregular alternating light and brown sjjaces. This beneficial species 

 has been recorded from Massachusetts and the White mountains. 



