316 



Locality, Grand Tower, April 21, 1914, on bank of the Mississippi 

 River (C. A. Hart and J. R. Malloch). 



Originally described from New Mexico by Coquillett. Ceratopogon 

 hruuialis Long, described from Texas, may be synonymous with this 

 species, though the long, slender tibial hairs are not figured by Long 

 and the larva described by him agrees with that of cilipcs. Unless these 

 species are synonymous, nothing is known of the life history of 

 squauiipes. 



This seems an opportune occasion to call attention to the fact that 

 Ceratopogon ciliatus Winnertz is very similar to the species here de- 

 scribed, though in the absence of European examples it would be rash 

 to suggest that they are synonymous. 



3. FoRCiPOMYiA SPECULARis Coquillett 



Ceratopogon spccularis Coquillett, Proe. U. S. Nat. Miis., Vol. 23, 1901, p. 601. 



Larva. — Length, 3-3.5 mm. Whitish yellow. Lateral and dorsal 

 views as shown in Figures i and 2, Plate XA'IL A distinct black eye- 

 spot on each side of head ; antennae short, apparently consisting of three 

 joints; dorsal surface of head with a fringed bristle on each side, man- 

 dible as in Figure 14, Plate XVIIL Dorsal bristles on the thoracic 

 and abdominal segments shaped as in Figures 17 and 18, Plate XVIII; 

 subdorsal pair on an elevated elongate ridge, their surfaces fringed ; 

 lateral bristle fringed; remaining bristles as in Figure i, Plate XVII; 

 all segments with-weak setulae (PI. XVIII, Fig. 11). 



Pupa. — Length, 2.5-3 mm. A short spine on dorsal surface of 

 head on each side, and a similar one anterior to and slightly dorsad of 

 the respiratory organ, the latter rather knob-shaped ; arrangement of 

 dorsal thoracic bristles as shown in Figure 20, Plate XVIIL Abdom- 

 inal segments, except those enclosed within the larval skin, each with 

 three short bristles on each side, arranged parallel to the anterior mar- 

 gin and slightly posterior to it, and in the intervals between, and 

 slightly posterior to them, are two much longer bristles ; all bristles 

 fringed. 



Imago; Male. — Black, shining. Antennal plumes black. The mem- 

 branous area on pleurae brownish. Tarsi yellowish. Halteres yellow. 

 Wings clear, veins and surface hairs dark brown; a small group of 

 hairs near wing-base and another at apex of third vein white. 



Eyes confluent ; antenna about ecjual in length to head and thorax 

 together; basal joint large, globose, flagellum wnth the basal 9 joints 

 short, as in Figure 12, Plate XXI, their diameter becoming slightly 

 smaller from first to ninth joint, apical four joints as in Figure 8 (de- 

 nuded) ; pal])! with the third joint less swollen than in the female. Mes- 



