460 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 105 



2. Male claspers long, wide at base, then sharply curved and gradually narrowed 



to a terminal point, basal plate about one-third as long as claspers; latero- i 

 ventral halves of ninth tergite of female more or less triangle shaped, rounded 

 ventrally and with one prominent sclerotized articulation ridge posteriorly; 

 forewing usually with R2 not forked deeply, i. e., basal to or at level of point 

 of junction of Sc and Rl, apex oval, symmetrical with respect to longitudinal 

 axis of wing, approximately 5 mm. long and 2 mm. wide; vertex, frons, 

 antennae and thorax blackish; basal antennal segment with sharp inner 



curve (figs. 7,E, 13; pi. 1, fig. 2) fuscata (Fabricius) (p. 468) 



Male claspers short, squat, basal plate approximately as long as claspers; 

 lateroventral halves of ninth tergite of female elongate, with both anterior 

 and posterior sclerotized articulation ridges; forewing with R2 usually 

 forked basal to point of junction of Sc and Rl, apex more acute, less sym- 

 metrical, frequently more than 5 mm. long and 2 mm. wide; vertex yellow 

 to yellowish brown with thin dark line encircling basal antennal segments, 

 frons and antennae yellow to yellowish brown, basal segments of antennae 

 dark brown with remaining segments yellow or brown to midpoint and then 1; 

 yellowish to apex; basal segment more smoothly curved on inner margin 1 

 (figs. 7,D, 10, 14; pi. 1, fig. 3) vicaria (Walker) (p. 460) I 



3. Forewing with Rl bent at a strong angle at meeting point with Sc, then 1 



dipping and curving toward margin; membrane uniformly light brown, 

 approximately 3.2 mm. long and 1.3 mm. wide; male claspers beaklike, 

 sharply curved dorsoventrally to point; vertex and frons yellowish brown, 

 antennae yellowish with basal two segments brown (fig. 15; pi. 1, fig. 6). 



minuta Esben- Petersen (p. 478) 

 Forewing with Rl not bent at an angle at meeting point with Sc, although i 

 curved and dipping somewhat; membrane with distinct intervenational 

 streaking between longitudinal veins (pi. 1, figs. 1, 4, 5) 4 



4. Antennae brownish black for basal 17 segments (approximately), then pale 



yellowish for about 15 segments, and fuscous for 5 or 6 terminal segments; 

 forewing 3.7 to 5 mm. long and approximately 1.7 mm. wide; lateroventral 

 halves of ninth tergite of female small, ovate; male claspers long, narrow, 

 smoothly curved, distally of more or less even width (fig. 16; pi. 1, fig. 1). 



apicalis Banks (p. 471) 

 Antennae brown; forewing 3.8 to 4 mm. long, and approximately 1.4 mm. 

 wide; lateroventral halves of ninth tergite of female "pear-shaped," elongate; 

 male claspers stout, with long setae (fig. 17; pi. 1, fig. 4). 



panama, new species (p. 474). 



Note: Because of the discovery that the type of nocturna now consists only of a 

 left forewing and right hindwing (both torn) which do not differ essentially 

 from those of apicalis (r-m and s being variable to a certain extent), it is 

 inadvisable to differentiate further between the two species here (see 

 nocturna, p. 476, and apicalis, p. 471). 



Sisyra vicaria (Walker) 



Figure 14; Plate 1, figure 3 



Hemerobius vicarius Walker, 1853, p. 297 (Georgia). 



Sisyra vicaria Hagen, 1861, p. 197. — Banks, 1905, p. 25. — Carpenter, 1940, 



p. 254. 

 Sisyra umhrafa Needham, 1901, p. 555, pi. 12 (figs. 6-8, 11), text figs. 33, 



34b, 36 (Saranac Inn, N. Y.; Lake Forest, 111.).— Banks, 1905, p. 25. 



