LEONARD HASEMAN. 319 



single strong clavate tenticle ; sickle-shaped, wide apart in their median portion, 

 but converging at base and tip ; basis of inferior pair truncate on outer margin, 

 tapering toward base, slightly over one-half length of inferior appendages. 

 Superior pair poorly developed, hidden among the tufts of hair on abdomen. 



Hah. — Lake City, Florida. Single male specimen taken in the 

 laboratory at the University in the middle of February, 1906. 



Psycliofla unifbrniata n. sp. 



Body dark brown to black, sparingly clothed with white and light blue hair, 

 some darker on the thorax. Legs dark brown, with closely applied, scattered 

 light hair and scales. Wings acutely angulated exactly at tip of second simple 

 nervure, evenly and well clothed with white and smoky hair; anterior fringe 

 smoky, darker toward base, narrow, about one-third breadth of posterior, which 

 is one-half the width of wing; posterior light, except for a smoky black patch 

 extending half-way to base of wing from tip of tenth vein ; anterior bifurcation 

 in middle of wing; posterior three-eighths length of wing from base. Length of 

 wing 1.3-1.6 mm.; breadth .45-. 55 mm. Length of antennae equal breadth of 

 wing, 15-jointed ; basal joint cylindrical, second spheroidal, 3-12 with basal en- 

 largements, separated by slender pedicles, 13 spherical ; 14 reduced, spherical ; 15 

 small, with terminal spike; 13-14-15 closely joined; each node with whorl of 

 erect hairs. Ventral plate as long as broad ; length .1 mm. ; cleft more than half- 

 way to l>ase ; yellowish-brown, clothed with scattered fine white bristling hairs. 

 Ovipositor well developed, strong, considerably curved, not acutely pointed at 

 tip; dark brown, lighter toward base; length one-sixth millimeter. 



Hah. — Columbia, Missouri. Six female specimens taken in 



laboratory by light, September 17-26, 1906. 



Psychoda nocturiiala n. sp. 



Head and thorax light brown ; abdomen darker, clothed with light gray hair; 

 tuft of darker between base of wings; tip of abdomen with long white hair. Legs 

 light yellow, clothed with light hairs and scales; tip of tarsi darker; tibise with 

 row of erect, spine-like black hairs. Wings acutely angulated at tip of median 

 vein; anterior fringe narrow; ^losterior one-third breadth of wing, smoky, 

 lighter toward base, where there is a large tuft of long hairs having a yellowish 

 cast; veins sparingly but uniformly clothed with smoky black hair, intermingled 

 here and there with patches of lighter; tip of anterior veins and vein 6 with 

 indistinct tufts of short black hair. Tip of veins 8 and 10 with rather distinct 

 tufts; radial furcation near middle of wing; one-tenth length of wing nearer 

 tip than cubital furcation. Length of wing 2.5 mm.; breadth .9 mm. Basal 

 joints of antennae stronger than remaining; first longer than broad, second glob- 

 ular, its diameter greater than that of first; remaining segments with strong 

 basal enlargements, their length about equal that of slender pedicle; nodes 

 sparingly clothed with whorls of light hair. Ventral plate as broad as long; 

 about one-seventh millimeter ; cleft almost to base; lobes widely diverging; at 

 base of plate on either side is a very small, yellow, downwardly projecting struc- 

 ture densely clothed with hair, resembling a cercus ; ventral plate yellow ; ovi- 

 positor same color at base, darker toward tip ; base almost as broad as plate ; 



TRANS. AM. ENT. SOC. XXXIII. OCTOBER, 1907. 



