336 CHARLES T. BRUES. 



latter should be placed as a family of Cyclorrhapha, close however 

 to the Orthorrhapha. I have no evidence to add in support of 

 either of these views, but am firmly convinced, from a study of the 

 mouth-parts and head of Lonchoptera and Phora, that the two 

 forms are more closely allied than has generally been supposed. 



In the following list I have endeavored to give a number of the 



species of Phoridse whose habits have been at least to some extent 



observed. 



GENERAL. 



Phora living in caves. Packard, Am. Nat., V, 1871, 745. 



Also, Aldrich, 1896. (Probably microcephala Lw.) 

 Foul brood due to Phora. Betbune, 16tb Rept. Eut. Soc. Ontario, 1886, 30, 

 Phorid larvae emerging from a hornet after its death. (Verrall.) 



SPECIFIC. 

 Phora bergenstammi Mik. In putrid snails (Mik). 



Phora microcephala Lw. Lives on dead caterpillars, but is not a true para- 

 site. (Hubbard and Riley.) 

 Phora opaca Meig. On exhumed human bodies. 

 Phora cimbicis Aid. Bred from cocoons of Cimbez americana. 

 Hypocera incrassata Meig. Parasite of honey-bee larva in England and 



cause of foul brood (Packard, 1868). 

 Aphiochseta agparici Lint. On decaying mushrooms (Lintner). 

 Aphiochseta epeirse Brues. Bred from egg cocoons of the spider Epeira 



(Brues). 

 Aphiochseta fasciata Fall. In coccinellidaj which were feeding on Aphides 



(Rondani). 

 Aphiochaeta flava Fall. Larvae in Agaricus (Schiner). 

 Aphiochseta fung-icola Coq. Bred from larvae infesting fungi (Coquillet). 

 Aphiochseta lutea Meig. Larvae in Agaricus (Schiner). 

 Aphiochseta minuta Aid. Bred from cocoons of Cimbex americana (Aldrich). 



In mushrooms ( Howard j. 

 Aphiochseta nigra Meig. In Agaricus ■prunulus (Schiner). 

 Aphiochseta pulicaria Fall. In nest of Vespa germanica (Van der Wulp). 



From Agaricus (Schiner), 

 Aphiochseta ruflpes Meig. Quite a general feeder, Bruuetti, Ent. Month. 



Mag., xxv, 1889, 282. In nest of Vespa germanica, Newstead, Ent. 



Month. Mag., xxvii, 1861, 41. From larvae of Kematus salicis (Fitch). 

 Conicera atra Meig. On exhumed human bodies. On corpse, two years after 



burial, Webster (1890). 

 Trineura aterrima Fabr. On buried human bodies (Megnin, 1895). 

 Apocephalus perg-andei. Larvae parasitic in the heads of adult ants {Compo- 



not us). Their presence causes the ant's head to drop off. Habits 



carefully described by Pergaude (1901). 

 Syneura cocciphila Coq. Bred from larvae infesting head of adults of Icerya 



purchasi (Coquillett). 



