THE GENUS BULIA WALKER IN MEXICO 

 AND CENTRAL AMERICA 



(Lepidoptera, Phalaenidae) 

 (Plates 32, 33) 



By A. Glenn Richards, Jr. 



Zoological Laboratory 



University of Pennsylvania 



Identification of a specimen of this group from the Allan Hancock 

 Foundation collections as the previously unknown female of Bulla mexi- 

 cana (Behr) has led to the examination of the genitalia of all the few 

 known Mexican and Central American specimens of this genus. The sur- 

 prising results necessitate this supplement to the author's previous revi- 

 sion. Full generic diagnosis is given in the 1936 papers, only the more 

 salient features being given below. 



Types of the two new species are from and therefore in the U.S. Na- 

 tional Museum. Paratypes and authentic specimens of the other species 

 except morelosa are in the Allan Hancock Foundation of The Univer- 

 sity of Southern California. 



Bulia Walker 



1858. Bulla Walker, Cat. Br. Mus., Lepid., 15: 1815, pro Blula 

 Walker, I. c.,\3:\ 169, 1857. Type : propria Walker, sole species. 

 1875. Clrrhobollna Grote, Trans. Amer. Ent. Soc, 5: 117. Contained 

 deducta Morr. and Incandescens n. sp., the latter a synonym of 

 the former. 

 1936a. Bulla, Richards, Ann. Ent. Soc. Amer., 29: 431-437, 1 pi. (revi- 

 sion). 

 1936b. Bulla, Richards, Rev. d. Ent., 6: 343, 365-367, fig. 12 (in generic 



revision ) . 

 1939. Bulla, Richards, Ent. Amer., n.s., 19:5, 69-71, pi. 5, figs. 7-14. 

 Palpi with long second segment which is upcurved along the frons to 

 the vertex or slightly above; third segment porrect and twice as long as 

 broad (1936a, fig. 4). Head of male modified, frons with small tuber- 

 culate prominence, vertex with heavy sheaths enclosing specialized scales 

 (1936a, figs. 3-4), these sheaths normally hidden by special scale tufts 

 from frons and vertex. Head of female normal, frons rough, rounded out 

 and with small tuft. Thorax, wing venation, legs, and abdomen normal 



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