THE CANADIAN ENTOMOLOGIST 



55 



VI. PHASIOPTERYGID.^ 



(Continued from page 54.) 



to maggots with chitinized dorsal 

 and lateral segmental plates, the 

 maggots deposited where they 

 must seek the host for themselves, 

 the uterus extremely long and 

 slender — Phasiopterygia;. 



VII. DEXIID.E 



1. Elongate subcylindrical slender ma- 



crotype eggs sharply pointed at 

 anal end, hatching to white mag- 

 gots with anal set?e borne at ends 

 of anal stigmatic processes, the 

 maggots deposited in choria on 

 soil which they enter in search of 

 white grubs, uterus fat and gut- 

 like — Billaeiae, Microchaetinia^, Mo- 

 chlosomise, Dexiia? (I am not 

 certain that the last two groups 

 possess the anal setae of maggot, 

 nor that the second group is para- 

 sitic in white grubs, but both are 

 indicated by my studies). 



2. Elongate subcylindrical macrotype 



slender eggs, hatching to white 

 maggots with anal stigmatic pro- 

 cesses but lacking the anal setae, 

 the maggots deposited at entrances 

 of galleries of woodboring grubs 

 to which they penetrate, uterus 

 fat and gut-like — Sardioceratiae, 

 Eutheresiiac, Paratheresiiae . 



3. Elongate subcylindrical slender ma- 



crotype eggs, hatching to white 

 maggots in the very fat gut-like 

 uterus, the maggots lacking both 

 anal processes and setae and evi- 

 dently deposited near the hosts — 

 Tropidodexiiae. (In this group 



