THK CANADIAN- ENTOMOLOGIST 161 
abundant long, pale hairs. Hypopygiuni with the pleural chilinized 
hooks four in number, very long and slender, not toothed, slightly 
curved toward the acute tips. 
Habitat.— CiiliiornvA. 
Holotyp€.— &, Fieldbrook, C'alifornia, May 29, H)()3, (H. S. 
Barber). 
Molophilus spiculatus, new species. 
Antenna^ of the male not elongated; general coloration brown, 
the pseudosutural fovea? dark brow^n, conspicuous; male hypo-p\- 
gium with the dorsal pleural appendage short and broad, the 
dorsal face spiculate; ventral appendage long and slender with 
a few scattered teeth. 
Male. — Length about 4 mm.; wnng 5.3 mm. 
Rostrum and palpi dark brown. Antenna^ short, dark brown; 
second segment of the scape enlarged, c^athiform, dull yellowish; 
flagellar segments oval, slightly elongated. Eyes widely separated. 
Head gray, the anterior parts of the \ertex and the occiput 
brighter coloured. 
Pronotum yellow, medially with two dark brown spots. 
Mesonotal pra^scutum deep liver-brown, very sparsely gray prui- 
nose; pseudosutural fo\ea^ long and narrow, dark brown, con- 
spicuous; space on the humeral angles before the fovete yellowish 
continued back along the lateral margin of the sclerite to the wing- 
root; tuberculate pits conspicuous, separated from one another 
by a distance a little less than twice the diameter of one; re- 
mainder of the mesonotum bright brown. Pleura light brown. 
Halteres pale throughout. Legs with the coxa' and tro- 
chanters dull brownish yellow; femora dark brown apically, 
the basal half much paler; tibiiie dull yellow, broadly tipped with 
brown; tarsi brown, the basal portion of the metatarsi paler; last 
two tarsal segments almost black. Wings subhyaline or slightly 
grayish; \'eins brown, clothed with long, brown hairs. Venation 
Cn\+Mz about equal to the first section of ilfi+2 alone. 
Abdomen dark brown, the hypopygiuni elongated, reddish; 
abdomen clothed with aluindant pale hairs. Hypopygiuni with 
the ventral, finger-like lobe stout with scattered elongate hairs. 
The four chitinized appendages of the hypopygium shaped as fol- 
lows: dorsal lateral arm broad, flattened, slightly curved, on the 
