NO. 3561 LOXOSTEGE—CAPPS 57 
Genitalia (fig. 53): Similar to those of occidentalis, harpe with a 
single spine arising from dorsal margin of sacculus; an obscure ampulla 
dorsad of cluster of long, slender setae; spinelike cornuti of aedeagus 
stronger. 
FrMa.e (fig. 161).—Alar expanse 17-20 mm. Similar to male in 
color and maculation. Genitalia (fig. 101): the conspicuous dilation of 
ductus seminalis in combination with character of sclerotization ad- 
jacent to ostium, ductus bursae between ostium and origin of ductus 
seminalis, and ductus seminalis at origin, are diagnostic for females. 
Typr.— Male, U.S. National Museum, USNM 26524, genitalia 
slide HWC 17,693. 
TypE-LocaLity.—Conway Bay, Indefatigable Island, Galapagos 
Archipelago. 
Foop pLtant.— Unknown. 
Disrripution.—Indefatigable and South Seymour Islands, Gala- 
pagos Archipelago. 
SPECIMENS EXAMINED.—4. 
In FLIGHT.— April. 
RemMArRKs.— Examination of the type revealed that it is a male, 
not a female as stated by Schaus. 
Ostrinia obliteralis (Walker), new combination 
Ficure 146 
Botys obliteralis Walker, 1865, List of the lepidopterous insects in the British 
Museum (Nat. Hist.), pt. 34, p. 1392. 
Loxostege obliteralis (Walker).—Barnes and MceDunnough, 1917, Checklist of the 
Lepidoptera of boreal America, p. 131. 
Pyrausta ainsliet Heinrich, 1919, Journ. Agric. Res., vol. 18, p. 175. [New 
synonymy.] 
Typrs.—British Museum (Nat. Hist.): obliteralis, female; U.S. 
National Museum: ainsliei, male, USNM 22544. 
Typxr-LocaLitiss.— North America: obliteralis; Knoxville, Tennes- 
see: ainslier. 
Remarks.—F. H. Benjamin was the first to note discrepancies in 
the sex of the type of obliteralis and the application of the name. In 
his unpublished notes, compiled about forty years ago during his 
examination of types of American species in the British Museum, he 
noted that the type of obliteralis was a female and not a male (as 
stated in the original description), and that the species to which the 
name was applied in collections in the United States was probably a 
Pyrausta instead of a Loxostege. 
It was not until recently, however, that Walker’s obliteralis was 
definitely determined to be conspecific with ainslier by the comparison 
of females and genitalia of that species with the type of obliteralis. 
