412 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



is only represented by a small portion at near the apex of third, 

 where it is separated from that vein, being coalescent with it for 

 most of or its entire length; in the latter case the third vein is said 

 to be unforked. There are four thin veins c^-ossing the disk of the 

 wing which are sometimes used for the separation of species or 

 genera. The antennae are 3-jointed, the first joint small, the second 

 inclosed for the greater part in the very large third, which is more 

 or less spherical or conical, and has a long 3-jointed dorsal or apical 

 arista. The fhes may be met with throughout the year, at least in 

 houses, and I found a series here taken on Plummers Island, Mary- 

 land, on January 7, 1908. 



HABITS OF THE PHORID^ 



Appended is a list of some of the species whose habits are more or 

 less known. The complete life liistory of most of these is still 

 unknown. 



Trupheoneura microc£phala Loew, lives on dead caterpillars, but is not a true parasite 



(Hubbard and Riley). 

 Trupheoneura trinervis Becker, carrion and rotting fungi (Wood). 

 Trupheoneura per ennisMeigen, carrion (Wood). 

 Trupheoneura f rater cula Brues, in museum, with label "In nest of Vespa germanica." 



Plummers Island, Oct. 21, 1903. Labeled ^ ' microcephala Loew." 

 Trupheoneura opaca Meigen, on exhumed human bodies. 

 Paraspiniphora bergenstammiMik, in putrid snails (Mik.). Specimens marked "From 



clean bones of turtle." Plummefs Island, April 9, 1911 (Barber). In collection. 

 Paraspiniphora maculata Meigen, larva lives on dead snails (Wood, Ent. Mo. Mag., 1906, 



p. 262). 

 Pseudostenophora pubericomis Malloch, on Agaricus sp. (Malloch). 

 Pseudostenophora, new name, is a change of name for the genus Stenophora Malloch 



(Jour. Nat. Hist. Soc. Glasgow, vol. 1, 1909, p. 27), which is preoccupied. 

 Dohmiphora concinna Meigen (=cimbicis Aldrich), from cocoons of Cimbex americana 



(Aldrich). 

 Dohmiphora abdominalis Fallen, on carrion (Malloch). 

 Dohmiphora venusta Coquillett. (See under this species in list.) 

 Chsetoneurophora thoracica Meigen, from mole's nest (Malloch). 

 Chsetoneurophora caliginosa Meigen {=urbana Meigen). Same nest, and under 



carrion (Malloch). 

 Chxtoneurophora curvinervis Becker, under carrion (Malloch). 

 Hypocera incrassata Meigen, parasite of honey bee in England and cause of foul brood 



(Packard, 1868). 

 Hypocera vitripennis Meigen, bred by Collin from nest of Bombtis (Wood). From 



moss (Malloch). 

 Pseudohypocera clypeata Malloch, series in collection marked "On honey and wax." 



(See description of species.) 

 Apocephahis, species on ants. Lives parasitic in the heads of the adults of Cam- 



ponotus, sp. Their presence causes the head of the ant to drop off. Habits 



discussed by Pergande (1901). (See descriptions of species.) 

 Aphiochxta epcirse Bruos, reared from egg cocoons of spider Epeira (Brues). 

 Aphiochsetafasciata Fallen, from Coccinellidse that were feeding on Aphides (Rondani). 

 Aphiochxta nedx Malloch, reared from Neda marginalis. (See under description of 



species.) 



