﻿MOTHS OF THE GENUS CINCIA — FIELD 313 



Female genitalia (pi. 7) with a broadly curved or bilobed transverse 

 ridgelike plate (the anterior genital plate) on seventh sternum and 

 with shallow cupules beyond either end of this transverse plate; ostium 

 bursae plate fused with anterior genital plate and bilobed, with lobes 

 not free; eighth sternum with a pair of plates (the posterior genital 

 plates) above and separate from ostium bursae plate or sometimes 

 with this pair fused and reduced in size; bursa copulatrix armed in- 

 ternally with a small circlet of clawlike or thornlike spines near 

 opening of ductus bursae; bursa copulatrix subspherical, not much 

 longer than broad and with a single denticulate platelike signum near 

 or above middle. 



Comparative remarks. — This genus is most closely related to Cincia 

 Walker but is easily distinguished by the male and female genitalia. 

 The chief differences are in the male gnathos arms, these arms being 

 smooth in Cincia and denticulate in Amplicincia, and also in the 

 presence of a clavus from the sacculus of the harpe in Amplicincia. 

 In the females the chief differences are in the presence of free posterior 

 lobes from the ostium bursae plate in Cincia and in the absence of 

 these free lobes in Amplicincia. 



Included in this genus are Amplicincia pallida (Butler), A. mixta 

 (Moschler), and three new species,: jletcheri, lathyi, and walkeri. 



KEY TO THE SPECIES OF AMPLICINCIA 



1. Males --- -- 2 



Females 6 



2. Juxta spheroidal and spiniferous (pi. 6, fig. 2) pallida (Butler) 



Juxta not as above 3 



3. Harpe with clavus long and fingerlike and ending in 2 large strong spurs 



(pi. 6, fig. 4) mixta (Moschler) 



Harpe with clavus not as above 5 



4. Harpe with clavus short and bluntly triangular (pi. 6, fig. 5). 



fletcheri, new species 

 Harpe with clavus not as above 5 



5. Clavus near apex of harpe; anellus with juxta and dorsal plates fused into a 



single plate (pi. 6, fig. 3) walkeri, new species 



Clavus near base of harpe; anellus with dorsal plates present and not fused 

 with juxta (pi. 6, fig. 1) lathyi, new species 



6. Transverse ridge along anterior margin of seventh sternum bilobed; a single 



bilobed plate on eighth sternum beyond ostium bursae (pi. 7, fig. 9). 



mixta (Moschler) 



Transverse ridge along anterior margin of seventh sternum broadly curved; 



2 large plates on eighth sternum beyond ostium bursae 7 



7. Circlet of thornlike spines near opening of ductus bursae separate and small 



(pi. 7, fig. 6) lathyi, new species 



Circlet of spines with spines large and clawlike and connected at their bases 

 to a curved plate 8 



8. Posterior genital plates taken together larger than ostium bursae plate; ostium 



bursae plate with elongate narrow lobes (pi. 7, fig. 8) _ .fletcheri, new species 



Posterior genital plates taken together smaller than ostium bursae plate; 



ostium bursae plate with short broad lobes (pi. 7, fig. 7) pallida (Butler) 



