146 ENTOMOLOGICAL NEWS. [April, 'l8 



crenient as a bait: Musca domestica, 21.81; Muscina stabu- 

 lans, 21.26; Liicilia sericata, 26.07; L. caesar, 3.31; Phormia 

 regina, n.66; P. terraenovae, .07; Calliphora spp., 1.34; Op- 

 kyra leucostoma, .21 ; undetermined Anthomyidae, 5.25 ; Sar- 

 cophagidae, 8.75. Under these conditions Mnsca domestica 

 was found to exceed Muscina stabulans only by a fraction of 

 one per cent. Luc ilia sericata was the most abundant. The 

 two experiments were conducted at the same time. 



The writer desires to acknowledge his indebtedness to Mr. 

 J. R. Parker of the Bozeman Experiment Station for the de- 

 termination of the two species of Culicidae, and to Dr. W. A. 

 Hooker, of the United States Bureau of Entomology, for the 

 determination of Rhcgmoclcma atrata. 



Two New North American Phoridae (Diptera.) 



By J. R. MALLOCH, Urbana, Illinois. 



The two species described in the present paper were col- 

 lected by the writer in 1917 in Illinois. The types are in the 

 collection of the State Natural History Survey of Illinois. 



Both species are readily distinguishable from their congen- 

 ers by the characters mentioned in notes at the end of their 

 respective descriptions. 



Apocephalus pictus sp. n. 



$ . Pale yellow, slightly shining. Frons black, subopaque ; anten- 

 nae, proboscis, and palpi yellow ; arista brown ; cephalic bristles 

 black. Thorax yellow with the exception of a dark spot just below 

 squamae. Abdomen yellow, with a large velvety black mark on each 

 side of segments 3 to 5 ; hypopygium shining black; anal process 

 yellow. Legs pale yellow ; mid coxae with a black spot on posterior 

 surface. Wings slightly yellowish; veins brown. Halteres yellow, 

 apices of knobs black. 



Frons with 8 bristles proximad of ocelli, the upper 4 in a straight 

 transverse line, the lower 4 in a curved line, the median pair much 

 lower than the outer and very close together ; post-antennal bristles 

 absent; frontal suture distinct; antennae very large, third joint pear- 

 shaped and half as large as eye; arista apical; palpi smaller than third 

 antennal joint. Mesonotum with one pair of dorso-centrals ; scutellum 

 with 4 subequal bristles ; mesopleura bare. Second abdominal seg- 

 ment twice as long as third, with several setulose hairs on each side ; 

 hypopygium very similar to that of pcrgandcl Coquillett. Legs rather 

 stout; all coxae with several strong black bristles on anterior sur- 

 face; hind femora with a fringe of setulose hairs on apical portion of 

 antero-ventral surface; hind tarsal joints 1-4 dilated at apices and 



