AMERICAN MOTHS OF THE SUBFAMILY PHiCITINAE 



229 



remaining species (with the possible exception of 

 nasutella) belong in the following group. 



Genus Unadilla, Species 470-472: U. maturella 

 to U. floridensis 



[Male with apical process of gnatbos completely fused; female 

 without signa.] 



470. Unadilla maturella (Zeller) 



FiQUHES 499, 996 



Homoeosoma maturella Zeller, Horae Ent. Soc. Rossicae, vol. 16, 

 p. 240, 1881. 



Hampson made maturella a synonym of erronella, 

 but a sketch by Clarke of the male genitalia of the male 

 type shows a completely fused apical process of gnathos 

 which places maturella in this group of species. A 

 photograph of the type also shows a pale grayish white 

 form with a strong, dark, transverse, antemedial shade 

 extending on a straight, outward slant from below costa 

 almost to inner margin. I have before me a series of 

 similarly marked specimens from Guatemala and Cuba 

 with genitalia similar to those of Zeller's type, and 

 presumably conspecific. Alar expanse, 14-16 mm. 



Ttpe locality: Colombia (type in BM). 



Food plant: Unknown. 



Distribution: Colombia. Guatemala: Cayuga 

 (Mar., Apr., May). Cuba: Baracoa (May), Havana. 



471. Unadilla albidiorella (Richards and Thomson), new combination 



Ephestta (Strymax) albidiorella Richards and Thomson, Trans. 

 Ent. Soc. London, vol. 80, p. 201, 1G32. 



Described from a single male. From description and 

 figure published by the authors it must be very close to 

 maturella if not a race of that species. I have seen no 

 Peruvian examples of Unadilla. Alar expanse, 17 mm. 



Type locality: Rio Ucayale, Contamino, Perii 

 ("Oct.-Dec," type in BM). 



Food plant: Unknown. 



472. Unadilla floridensis, new species 



Darker and more decidedly gray than the other 

 species of the genus; dark pattern markings faint, in 

 some specimens almost obsolete, in others conspicuous 

 only as a single antemedial shade or spot and a narrow 

 fainter dark inner shade along subterminal line of fore- 

 wing; white dusting rather sparse. Alar expanse, 

 8-13 mm. 



The genitaUa (cf and 9) are similar to those of 

 maturella, exhibiting no differences of a specific nature. 



Type locality: Key West, Fla. (type in USNM, 

 61377). 



Food plants : Pulchea odorata, Melanthera radiata. 



Described from male type and 10 male and 4 female 

 parat3T3es from the type locality, reared Apr. 23 to May 

 1, 1945, by the Special Survey of the Division of Foreign 

 Plant Quarantine, U. S. Bureau of Entomology and 

 Plant Quarantine, from larvae feeding in the blossoms 



and seed pods of Pulchea and Melanthera. These are 

 the only food-plant records we have for the genus 

 Unadilla. The larvae are similar in markings and 

 habitus to those of Rotruda mucidella and like them lack 

 the sclerotized rings about seta lib of mesothorax and 

 seta III of the eighth abdominal segment. 



Genus Unadilla, Species 473 (unplaced): U. 



nasutella 



473. Unadilla nasutella Hulst 

 Unadilla nasutella Hulst, Phycitidae of N. Amer., p. 197, 1890. 



The male type in the Rutgers Collection lacks an 

 abdomen, so it wUl be impossible to place nasutella in 

 its proper species group or to determine its synonymy 

 until more specimens from the southwestern United 

 States are discovered. Except for the Hulst type I 

 have seen no example of Unadilla from New Mexico, 

 Arizona, or Texas. Alar expense, 13.5 mm. 



Type locality: Hot Springs, N. Mex. (type in 

 AMNH, ex Rutgers). 



Food plant: Unknown. 



Hampson referred nasutella as a sjmonym of erronella 

 Zeller and it so stands in our lists. This synonymy is 

 probably incorrect and is certainly imwarranted on the 

 evidence before us. 



Genera 131-151: Laetilia to Cactohrosis 



[Venational division A. Forewing smooth, oblong, broadest 

 toward termen; color alike in both sexes; 11 veins; 10 from cell, 

 8 and 9 stalked, 6 straight, 4 and 5 stalked, 2 and 3 separate or 

 approximate, 2 from near lower outer angle of cell; no costal 

 fold or other secondary sexual modifications. Hind wing with 

 7 veins; 3 and 5 connate or stalked; 2 from before lower outer 

 angle of cell; discocellular vein curved, complete; no sex-scaling 

 or other sexual modifications; cell one-half or somewhat less 

 than one-half the length of the wing. Abdomen of male with a 

 pair (rarely two pairs) of ventrolateral hair tufts at base of 

 eighth segment or with eighth segment simple. Male genitalia 

 with uncus broad, subtriangular, never hook-shaped or otherwise 

 modified, apex broadly rounded, its outer (dorsal) surface densely 

 covered with bristlelike scales; gnathos terminating in a flanged 

 (or lobed) and hooked apical process, frequently bifid, sometimes 

 fused or partially fused; transtilla incomplete (represented by a 

 pair of separate, more or less elongate-triangulate plates), never 

 forming a bridge or otherwise modified; harpe simple, without 

 clasper or extensions from sacculus or costa; anellus U-shaped; 

 aedeagus straight or slightly sinuate, usually smooth, but occa- 

 sionally with a few very small scobinations at apex; penis smooth, 

 finely scobinate or with sclerotized wrinklings but not other- 

 wise armed; vinculum stout and broad, short or long, and with 

 terminal margin normally broadly rounded. Female genitalia 

 with bursa copulatrix membranous, smooth or more or less mi- 

 nutely scobinate on inner surface, never strongly sclerotized or 

 pigmented; signum frequently absent, when present consisting 

 of a small, ribbed, weakly serrate, finely scobinate or cupped 

 plate; ductus bursae membranous throughout or scobinate for a 

 short distance from genital opening, gradually widening into and 

 not sharply differentiated from bursa copulatrix; genital opening 

 normally simple, sometimes minutely scobinate, occasionally 

 with sclerotized dorsal or ventral plates or a few setae on the inner 

 surfaces of the ductus at the opening, otherwise unmodified or 

 unarmed: ductus seminalis from bursa, rarely from ductus bursae 

 near junction with bursa.] 



