NEOTROPICAL HEMEROBIIDAE — NAKAHARA 



117 



of latter and exceedingly short ; crossvein m-cu not very short ; second 

 cubital cell not closed; five crossveins to inner and seven to outer 

 gradate series. Hindwing hyaline, unmarked except for a pale 

 brownish shading at marginal cubitoanal area and in pterostigmatic 

 region. First branch of radial sector arising directly from Ri, sepa- 

 rate from the remaining two branches, giving the appearance of two 

 radial sectors. 



^=.=3 



Figure 3. — Male genitalia: Hemerohius tolimensis Banks {a-c); Hemerobius chilensis, new 

 species {d-f); Hemerobius excepiatus, new species (g-i)- Anal plate, lateral view {a, d, g); 

 processes of aedeagus, dorsal view (b, e, h); parameres {c, f, i). 



Male genitalia: Anal plate narrow, especially so in its distal one- 

 third; apex obtusely rounded and provided with an acute spiny 

 process directed inward and upward. Tenth sternite of the usual 

 form; processes of aedeagus long, slender, and very close together at 

 their broadened bases. Apical dilatations of parameres roundish in 

 outline, with narrow, raised ridge along the external margin. 



Hemerobius exceptatus, new species 



Figures Sg-i; Plate 2 (Fig. 6) 



Holotype cf, Cundinamarca near Guasca, Colombia, 3500 m., 

 Jan. 3, 1959 (J. F. G. Clarke) ; right wings (dry) and dissected parts of 

 genitalia (in balsam) mounted on two slides, USNM type 66869. 



Head fulvous yellow with fuscous brown gena; palpi brownish; 

 j basal joint of antennae yellowish (the rest of antennae missing). 



