SOME AMERICAN GEOMETRID MOTHS CAPPS 139 



female type (Zacualpan, September), and one female from Cuerna- 

 vaca (June). Differences in character of the transverse lines of the 

 male suggest that its association with the females may not be correct. 

 The female from Cuernavaca is very similar in color and habitus to 

 some examples of cavillaria, and except for the production of the 

 outer margin of the hind wing at vein 4 it is scarcely separable. How- 

 ever, until more material and information are at hand, it will not 

 be possible to define the limit of variation in the species, and the 

 specimens under marilacta had best be left in their present association. 



4. BESMA RUBRITINCTA (Cassino and Swetl) . 



Plate 5, Figures 14, 14A ; Plate 10, Figuke 32 



Sabutodes rubritincta Cassino and Swett, The Lepidopterist, vol. 4, No. 5, 

 p. 37, 1925. 



Destutia rubritincta (Cassino and Swett) McDunnough, Check list of the 



Lepidoptera of Canada and the United States of America (Part 1, 



Macrolepidoptera), No. 5123, 1938. 

 Sabulodcs rubritincta f. nigripuncta Cassino and Swett, The Lepidopterist, 



vol. 4, No. 5, p. 38, 1925. 

 Destutia rubritincta f. nigripuncta (Cassino and Swett) McDtjnnough, Check 



list of the Lepidoptera of Canada and the United States of America (Part 1, 



Macrolepidoptera), No. 5123, 193S. 



Male. — Pale testaceous, with a slight ocherous tinge; transverse 

 lines of wings somewhat darker testaceous, slightly curved. Fore 

 wing with anterior and posterior transverse lines edged inwardly and 

 outwardly respectively with pale ocherous; transverse anterior line 

 occasionally only faintly indicated. Hind wing similar to fore wing 

 in color and with a transverse line appearing as a continuation of 

 transverse posterior line of fore wing, edged outwardly with pale 

 ocherous. The subterminal lines often indistinct on upper surface 

 of the wings. 



Alar expanse, 35-38 mm. 



Genitalia (figs. 14, 14A) similar to those of quercivoraria but with 

 uncus stouter and the spinules of gnathos finer. 



Female. — Color of body and upper surfaces of wings similar to those 

 of the male. Under surfaces of wings with a rather dense sprinkling 

 of fuscous and reddish brown scales. Wings more angulate than 

 those of the male and outer margin of hind wing crenulate. 



Alar expanse, 38-40 mm. 



Genitalia (fig. 32) similar to and scarcely distinguishable from those 

 of quercivoraria. 



Types. — In Museum of Comparative Zoology. 



Type localities. — Arizona, Pima County, Baboquivari Mountains. 



Food plant. — Unknown. 



