220 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



KEY TO THE SPECIES OF INGA BASED PRIMARILY ON 

 FEMALE GENITALIA 



1. Signum present 2 



Signum absent 4 



2. Signum minute^"; a narrow sclerotized ring before ostium (fig. 



206) obscuromaculella (Chambers) (p. 226) 



Signum well developed; ring before ostium broad or narrow 3 



3. Sclerotized ring before ostium broad (fig. 209) ciliella (Busck) (p. 227) 



Sclerotized ring before ostium narrow (fig. 210) cretacea (Zeller) (p. 225) 



4. Abdomen strongly spined canariella (Busck) (p. 222) 



Abdomen not spined 5 



5. Sclerotized ring before ostium broad (fig. 208) 



concolorella (Beutenmiiller) (p. 221) 

 Sclerotized ring before ostium narrow (fig. 89) 



sparsiciliella (Clemens) (p. 222) 



INGA HUMATA (Meyrick), new combination 



Machimia humata Meyeick, Exotic Microlepidoptera, vol. 1, p. 181, 1914 ; in 

 Wytsman, Genera insectorum, fasc. 180, p. 82, 1922. — McDunnough, Check 

 list of the Lepidoptera of Canada and the United States of America (Part 

 2, Microlepidoptera), No. 8387, 1939. 



Cryptolechia humata (Meyrick) Barnes and McDunnough, Check list of the 

 Lepidoptera of Boreal America, No. 6420, 1917. 



Head whitish gray, somewhat sprinkled with light gray. Palpus 

 ochreous whitish, second segment with the basal three-fifths gray ex- 

 ternally. Antennal ciliations 5. Thorax gray irrorated with darker. 

 Abdomen gray. Fore wing pale gray irrorated with dark fuscous; 

 first and second discal spots and an outwardly curved row of spots 

 from two-thirds of costa to two-thirds of inner margin, fuscous ; cilia 

 gray. Hind wing and cilia gray. 



Alar expanse, 20 mm. 



Type. — In the British Museum. 



Type locality. — Palmerlee, Ariz. 



Food plant. — Unknown. 



Remarks. — I know this species from description only and am plac- 

 ing it here on the evidence presented in the description. The dark, 

 lower portion of the second segment of the labial palpus and the 

 pattern indicate that the species belongs in Inga. Until the type 

 has been examined and a final disposition of the species has been made 

 we can refer it to this ffenus. 



« A single female of this species is available for study. The bursa of this specimen shows a minute, round 

 signum, which may or may not be present on other specimens. 



