NEOTROPICAL HEMEROBIIDAE — NAKAHARA 



121 



The morphology of male genitalia in this species is totally unlike 

 that of Megalomus; the narrow anal plate, epimeres fused with dorso- 

 lateral border of "wings" of 10th sternite, the absence of differentiated 

 phallobase, the presence of "hypomeres," and completely fused 

 parameres of extraordinary structure, all point to the fundamental 

 dissimilarity of Spinomegalomus and Megalomus. 



Genus Megalomus Rambur 

 Megalomus minor Banks 



Figure 5 



Megalomus minor Banks, Trans. Amer. Ent. Soc, vol. 32, p. 43, 1905. — Carpenter, 

 Proc. Amer. Acad. Arts Sci., vol. 74, p. 242, fig. 44, 1940. 



One cf , Ft. Gulick, Canal Zone, Panama, Aug. 21, 1952, and 2 9, 

 Cabeja, Panama, Sept. 16, 1952 (F. S. Blanton), in alcohol. In 

 addition, there are 15 pinned specimens (mostly females but the 

 sexes of some cannot be determined because of the lack of abdomens) 

 from the following localities: 10 miles north of Tamazunchale, San 

 Luis Potosi, Mexico, Dec. 24, 1940 (G. E. Bohart); 10 miles south of 

 Jalapa, Mexico, Dec. 28, 1940 (G. E. Bohart); Cuernavaca, Mexico, 

 April 1945 (N. L. H. Krauss); Quinta Chilla, Tamazunchale, Mexico, 



Figure S. — Megalomus minor Banks (male genitalia): a, anal plate, lateral view; b, 10th ster- 

 nite, dorsal view with left "wing" omitted; c, parameres, dorsal view. 



Dec. 20, 1948 (E. S. Ross) ; Fortin, Veracruz, Mexico, Aug. 12, 1954 

 (Insp. Lewis, at Laredo, Tex., on orchids); Lion HUl, Canal Zone, 

 Panama, June 18, 1907 (August Busck), bearing Banks' label "Mega- 

 lomus minor Banks"; Tabernilla, Canal Zone, Panama, June 20, 1907 

 (August Busck) ; La Campana, Panama, Sept. 12, 1952 (F. S. Blanton) ; 

 Chiriqui, Panama, Dec. 16, 1952 (F. S. Blanton); Honduras, October 

 1935; Guatemala, December 1934; San Salvador, El Salvador (P. A. 

 Perry), bearing Parfin's label "Megalomus nr. minor"; Colombia, 



