1967] 
MacLeod — Berothidae 
345 
Description. Face and vertex dark yellow, with stout white 
setae of moderate length and with a suggestion of dark spotting about 
the bases of the vertex setae; labrum with a transverse row of thin- 
ner, more-elongate setae. Scape short, twice as long as broad, setae 
like those of vertex but darker, right antenna with fifty-six anten- 
nomeres distal to scape, each with a thin brown ring, setae of a dark 
amber color. Thorax tannish brown (probably much discolored), 
with no indications of any original mottling of color pattern. Pro- 
thoracic legs pale yellow, femora and tibiae with a few scattered 
darker spots. 
Wings (Fig. i) with anterior margin of fore wing slightly con- 
cave; no maculations on membrane, but with longitudinal veins of 
fore wing with dark dots at setal bases; outer gradate series with 4 
crossveins in the anterior wing, 3 crossveins in the posterior wing; 
fore wing length 6.7 mm. 
Thorax and wing margin with sparse elongate white setae (prob- 
ably mostly rubbed off), posterior wing margins with more-elongate, 
silky pale yellow setae ; setae on wing veins white, shorter than those 
on body, directed basally at about a 45° angle to longitudinal axis 
of vein, length about equal to average distance between veins; no 
evidence of squamae on body, legs, or wings. 
Abdominal structures as in Figs. 2-4: 8th sternite with short setae 
and with an apodeme reenforcing the strap-like lateral arms, an- 
teriorly directed median lobe slightly pedunculate in lateral view, 
somewhat spatulate in shape when viewed ventrally; cuticle between 
8th sternite and 8th gonocoxites a weakly sclerotized convex lobe; 
9th gonocoxites somewhat triangular in lateral aspect, with a distinct 
posterior lobe. Sclerotized, proximal portion of bursa wound in a 
snail-like coil of decreasing diameter, from the tip of which the 
spermatheeal duct originates; spermatheca with coiling pattern as in 
Fig. 4. 
The pinned type is missing its left antenna distal to the scape, 
right fore leg distal to the femur, mesothoracic legs distal to their 
coxae, metathoracic legs distal to the coxa (right) and femur (left) 
and most of the left hind wing. The abdomen has been removed, 
cleared, and placed in glycerine in a microvial on the pin with the 
specimen. The holotype was collected at a light in May, 1927 by 
C. Dumont at Nefta, Tunisia, 
Discussion 
Such specialized features as the large, anteriorly directed 8th 
sternum, well-developed hypocaudae, manner of closure of the genital 
