AMERICAN MOTHS OF THE SUBFAMILY PHYCITINAE 



257 



termen between the vein ends. Hind wing of male 

 white, semihyaline, with a narrow pale fuscous shade 

 along costa and termen; of female dark smoky fuscous 

 shading to white towards base; cilia white with a 

 fuscous basal band. Alar expanse, 30-33 mm. 



Male genitaha as given for the genus. Female geni- 

 talia with bursa very large and irregularly shaped, 

 minutely scobinate. 



Type locality: Curasao, Dutch West Indies (type 

 in USNM). 



Food plant: Opuntia (Platypuntia) sp. 



Distribution: Dutch West Indies : Curagao (Jan.). 

 Venezuela. Caracas (Jan.). Colombia: Province of 

 Colombia (Jan.) 



Superficially leithella resembles Cactohlastis cactorum 

 but is easily distinguished on structural characters of 

 the male and female genitalia and of the male antennae. 



150. Genus Ozamia Ragonot 



Ozamia Ragonot, Monograph, pt. 2, p. 34, 1901. — Heinrich, Proc. 

 U. S. Nat. Mus., vol. 86, p. 386, 1939. (Type of genus: 

 Trachonitis lucidalis Walker.) 



Antenna of male serrate (except in hemUutella and 

 punicans, where it is simple) and pubescent with a series 

 of modified, papiUalike setae on the inner side of several 

 basal segments of the shaft (fig. 557d) ; antenna of the 

 female simple and pubescent. Labial palpi obliquely 

 ascending in both sexes. Maxillary palpus squamous. 

 Hind wing with veins 7 and 8 anastomosing beyond the 

 cell; 3 and 5 stalked. Eighth abdominal segment bear- 

 ing one pair or two (odiosella) pairs of ventrolateral 

 hair tufts. 



Male genitalia with apex of gnathos small or moder- 

 ately large, bifid; apex of harpe oblique (except in 

 punicans); vinculum long; anellus with base of plate 

 broadly rather than narrowly sclerotized, arms long, 

 slightly twisted and curved; aedeagus rather long and 

 moderately stout (except in lucidalis) ; penis scobinate. 



Female genitalia with signum weak or absent {luci- 

 dalis), when present developed as a thin, short, scobi- 

 nate or shortly thorned plate or a series or cluster of 

 small, weak spines; biu-sa copulatrLx minutely scobinate, 

 at least toward ductus bursae (wrinkled in the South 

 American species); ductus bursae long or moderately 

 long, scobinate toward bursa; ductus seminalis from 

 bursa near signum. 



Larva wine colored, olive green, or blackish, not 

 banded or conspicuously spotted; with two setae in 

 group VII of abdominal segments 7 and 8; solitary 

 feeders in fruits and flower buds of Opuntia and Cereus, 

 sometimes (some South American species) in the stems 

 of Cereus. 



This genus divides into two natural groups: The 

 North American species with unwrinkled bursa and 

 minutely scobinate ductus bursae, and all fruit or bud 

 feeders; and the South American species with wrinlded 

 bursa and coarsely scobinate ductus bursae and either 

 fruit or stem feeders. The West Indian species 

 (lucidalis) is anomalous in some genitalic characters 



300329 — 56 IS 



(small abdominal tufts, rather slender aedeagus, long 

 ductus bursae, and no signum), but on habitus and 

 other characters it appears closely allied to the North 

 American group. When males of all the species are 

 known it may be possible to give a separate generic 

 designation to the South American forms, but in the 

 absence of definitive male characters that does not seem 

 justified. 



The papiUalike setae on the male antennal shaft of 

 Ozamia also occur in Cactobrosis and Zophodia, but 

 the last two genera are distinguished by filiform maxil- 

 lary palpi. 



Eight species are here recognized as belonging to the 

 genus. Its distribution appears to be the southwestern 

 part of the United States, Central and South America, 

 and the West Indies. 



531. Ozamia lucidalis (Walker) 

 Figures 556, 1042 



Trachonitis lucidalis Walker, List, vol. 27, p. 39, 1863. 



Ozamia lucidalis (Walker) Ragonot, Monograph, pt. 2, p. 34, 

 1901.— Heinrich, Proc. U. S. Nat. Mus., vol. 86, p. 388, 

 1939.— McDunnough, Check list. No. 6290, 1939. 



Palpi, head, thorax, and forewng sordid white. 

 Forewing with ferruginous-fuscous spottings on the area 

 bordering inner margin; transverse markings black, 

 shading to ferruginous fuscous toward inner margin; 

 antemedial line angulate, white, bordered on inner and 

 outer sides by black or ferruginous, the outer black 

 marking at costa a broad spot; sub terminal line dentate, 

 slanting from costa near apex to outer fourth of inner 

 margin, bordered inwardly and outwardly by dark lines, 

 shading from black to ferruginous; discal spot at end of 

 cell irregular, frequently extended beyond cell into two 

 short dashes, black; a row of black dots along termen 

 at the vein ends. Hind wing white, semihyaline, with 

 a fine fuscous line along termen ; cilia white with a faint, 

 dark, subbasal line. Abdominal tufts small. Alar 

 expanse, 25-30 mm. 



Male genitalia with apical process of gnathos small; 

 end of vinculum bluntly rounded. Female genitalia 

 without signum; bursa and part of ductus bursae 

 minutely scobinate; ductus bursae long, slender, bent 

 at middle. 



Type locality : Santo Domingo [Dominican Repub- 

 lic] (type in BM) . 



Food plant: Opuntia (Platypuntia) sp. 



Distribution: Cuba; Jamaica, Kingston (Jan.). 



I have seen no specimens from the type locality. 



532. Ozamia fuscomaculella (Wright) 



Figures 557, 1043 



Euzophera fuscomaculella Wright, Ent. News, vol. 27, p. 27, 

 1916.— McDunnough, Check list, No. 6320, 1939. 



Ozamia heliopkila Dyar, Ins. Insc. Menstr., vol. 13, p. 222, 1925. 



Ozamia odiosella fuscomaculella (Wright) Heinrich, Proc. U. S. 

 Nat. Mus., vol. 86, pi 390, 1939. 



Ground color and markings of forewing similar to 

 those of lucidalis except that transverse markings are 

 blackish throughout, paling somewhat toward inner 



