ABT. 19. MOTHS OF THE GENUS DIATEAEA DYAR AND HEINRICH 41 



JLixta detached. Aedoeagiis with a long scobinate tongue attached to 

 under side near base. Figured from tjqDe. ' 



One specimen before us from cellection C. V. Riley (A. Oemler, 

 collector) ; referred by Fernald as the male of Diatraenopsis idalis; 

 two others from the C. H. Fernald Collection, labeled " Georgia " and 

 " 414, 433," and by Fernald " Ghdlo" probably all from the same 

 source. 



Tijpe.—Csit. No. 29437, U.S.N.M. 



Type locality. — ^Wilmington Island, Ga. 



CmLO BERTHELLUS (Schaus) 



Diatraea iertJwllns Schaus (in Dyar), Ent. News, vol. 22, 1911, p. 206. 

 OCCIDENTALIA, new genus 



Front strongly conically produced and tuberculate. Labial palpi 

 porrect and down-curved, not extending twice the length of the head. 

 Antennae filiform. Venation as in Diatraenopsis. The wings 

 rounded apically; in the female disproportionately small for the 

 heavy abdomen, but form otherwise slender. 



Male genitalia with vinculum produced beneath into an extended 

 tongue. Harpe undivided, but with costa stoutly and broadly chitin- 

 ized at base and produced into a short stout subbasal hook. Uncus 

 a somcAvhat flattened and broadened hook (as in Alajjiiogordia and 

 Hemiplatytes) . Gnathos unspined. Anellus semitubular without 

 produced lateral arms (as in Hahibachia) ; no detached juxta. 



Female genitalia with ductus bursae chitinized for a short distance 

 from genital opening; rather long. Bursa copulatrix moderately 

 sized and without signa. Ovipositor reduced. Supporting rods of 

 ovipositor and eighth segment collar very long. Eighth to tenth 

 segments greatl}'^ elongated and telescopic. 



Abdomen of male without hair tufts on second segment. 



Genotype. — Cranibus coinptulatalh Hulst. 



OCCIDENTALIA COMPTULATALIS (Hulst) 

 Figure.s. 42, 81 



Cramius comptitJatalis Hulst, Trans. Amer. Ent. Soc, vol. 13, 1886, p. 167. 

 Chilo comptulatalis (Hulst) Fernald, in Dyar List, Bull. 52, U. S. Nat. 



Mus., No. 4631, 1903. — Barnes and McDunnough, List Lepid. Bor. 



Amer., No. 5431, 1917. 

 Diatraea comptulatalis (Hulst) Forbes, Memo. 68, Cornell Univ. Agr. Exp. 



Sta., 1923, p. 591. 



Sexually dimorphic, the males brown, the females more yellowish 

 and with a distinct outer line. 

 Expanse. — Male, 21-25 mm.; female, 22-30 mm. 



