CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 353 



plant-lice, Apanteles tomato worms, cabbage worms and others, Micro- 

 gaster Grape Sphinx caterpillars; Meteorus Fall Web-worms. Braconid 

 flies are wasp-like, brownish or yellowish-black, and about 3^^ inch long. 



KiG. 23s. — A tomato worm {Phlegelhontius sexto), bearing cocoons of the parasitic 

 Apanteles congregatus. Natural size. {After Folsom.) 



Fig. 236. — Bassus earinoides. A braconid parasite of the budmoth. Much 



enlarged. 



Chalcidtd^ (Chalcid Flies) (Fig. 237) 



The great majority of Chalcis- flies are beneficial as parasites on 

 injurious insects. They are minute metallic insects with stout heads 



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