136 
Fig. 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
PLATE 5. 
38.—Psilocephala aldrichi Coquillett. Female. 
39.—P. aldrichi Coquillett. Male. 
PLATE 6. 
Fig. 40.—Psilocephala morata Coquillett. Female. 
Fig. 
41.—P. flavipennis, new species. Female. 
42.—P. aldrichi Coquillett. Female. 
43.—P. frontulis, new species. Female. 
44,—P. platancala Loew. Female. 
45.—P. placida Coquillett. Female. 
46.—P.munda Loew. Female. 
47.—P. haemorrhoidalis (Macquart). Female. 
48.—P. haemorrhoidalis (Macquart). Male. 
49.—P. limata Coquillett. Female. 
50.—P. tergissa (Say). Female. 
51.—P. pavida Coquillett. Female. 
52.—P. aurantiaea Coquillett. Female. 
53.—P. canadensis, new species. 
54.—P. melampodia Loew. Female. 
55.—P. laevigata Loew. Female. 
56.—P. marcida Coquillett. Female. 
57.—P. acuta Adams. Female (from cotype). 
58.—P. arizonensis, new species. Female. 
59.—P. variegata flavipilosa, new subspecies. Female. 
60.—P. cinerea, new species. 
61.—P. latifrons, new species. Male. 
62.—P. lateralis Adams, Female. 
63.—P. costalis Loew. Female. 
64.—P. argentifrons, new species. Male. 
65.—P. fuscipennis, new species. Female. 
PLATE 7. 
. 66.—Psilocephala tergissa (Say). 
67.—P. acuta Adams. 
68.—P. festina Coquillett. 
69.—P. flavipennis, new species. 
70.—P. aurantiaca Coquillett. 
71.—P. limata Coquillett. 
72.—P. cinerea, new species. 
73.—P. munda Loew. 
74.—P. costalis Loew. 
75.—P. notata (Wiedemann). 
76.—P. platancala Loew. 
77.—P. pavida Coquillett. 
78.—P. variegata occidentulis, new subspecies. 
PLATE 8. 
79.—Psilocephala marcida Coquillett. Antenna; 97, male genitalia. 
80.—P. variegata flavipilosa, new subspecies. Antenna. 
31.—P. munda Loew. Antenna; 96, male genitalia. 
82.—P. festina Coquillett. Antenna; 106, male genitalia. 
83.—P. morata Coquillett. Antenna; 105, male genitalia. 
VOL, 62. 
