NO. 193& THE DIPTEROUS FAMILY PHORID^—MALLOCH. 529 



Plate 40. 



Fig. 1. Pidiciphora glacialis, female. 



2. Portion of hind metatarsus of same. 



3. Arista of same. 



4. Head and thorax of P. nitida, female. 



5. Head, thorax, and abdomen of Chonocephalus buccata, female. 



6. Head of Acontistoptera mexicana, female. 



Plate 41. 



Fig. 1. Wing of Acontistoptera mexicana, female. 



2. Wing of Trupheoneura vitrinervis, male. 



3. Wing of Pidiciphora palposa, male. 



4. Wing of Puliciphora niidipalpis, male. 



5. Wing of Alphiochseta subatomella, male. 



6. Hypopygium of Apocephalus pergandei, male. 



7. Hypopygium of Apocephalus aridus, male. 



48702°— Proc.N.M.vol.43— 12 34 



