346 NORTH AMEKICAX CALLIMORPHA. 



rarely entirely wliite. Thorax white, patef;iai browii-edged anteriorly; 

 a broad brown dorsal stripe. Abdomen Nvhite, the thoracic dorsal stripe 

 continned on the basal segments, but much narrowed, and sometimes 

 entirely obsolete. Feet pale yellow, the anterior and njiddle tibia and 

 tarsi dusky outwardly. Primaries margined with brown along eosta to a 

 variable distance, never quite to apex. Internal margin brown to near 

 iinalaugie. Outer margin brown from apex nearly to anal angle. An ob- 

 lique band iron) inner niaigln about one-third from anal angle to outer 

 margin just below apex. This band varies considerably in width, some- 

 times becoming obsolete in the upper i»art of its course and leaving 

 thus oidy a short spur from the hind margin. In this form there is a 

 very strong resemblance in maculation to interrupto-marginata, espe- 

 <;ially as it is usually accompanied by a shortening of the costal brown 

 margin and a great narrowing of the brown outer margin. Sometimes 

 there is a small spur from the costal brown margin near the apex, and 

 a corresponding one on the oblique band, indicating an approach to 

 an apical spot similar to that in leconiei, but the teeth never join, and 

 the course of the oblique band, which is i)recisely the opposite of lecontei 

 and contiguo, will serve to distinguish this species. Secondaries im- 

 maculate white. Beneath white, the maculation of primaries faintly 

 reproduced. 



Expands 1.(55-1.1)0 inches=4:l-l:7'"'". 



Habitat. — Canada, Massachusetts, Xew York, Missouri, Illinois, 

 Indiana, Iowa and Texas. 



The essential difference in maculation is in the course of the main 

 oblique baud of the primaries, as has been already pointed out, and 

 this species is the white representative of the yellow internipto-mar- 

 {jinala, as sujfusa is of clymene. It was this species which, according to 

 Mr. Strecker, mated a S with a 9 inter rupto-marginata, and produced the 

 hybrid he figures and describes. The side pieces of the male genitalia 

 differ from those of SKffu.sa oidy by having tlie inferior angle more 

 extended and the superior angle shorter. A reference to the figures on 

 plate xiii will show the forms in all the species. 



The insect is locally common, and is widely distributed. The priu- 

 •cipal variations are shown on plate xiv, figures o-~). 



The larva has not been described. 



C contigua Wek., 0. B. M. Het., iii, G5'2, Ili/pcrcomjju ; Clem., Pr. Ac. N. Sc. Pliil., 

 1860, 536, Hypercompa ; Morris, Syii. Lep. App., 346, IJypercompa ; Sauud., 

 Syn. Can. Arct. 1863, 26, Hypcrcompa ; Pack., Pr. Eut. Soc. Phil., iii, 108, 

 Callimorpha ; G. & R., Tr. A. E. Soc. ii, 72^ lecontei; Stretch., Z. & B. 62- 

 237, pi. ix, f. 13, var. lecontei; Caulfield, 16 Kept. Ent. Soc. Out., 1886, 38 an 

 sp. dist. 



Head yellow ; palpi black tii)ped ; antennae black. Prothorax yellow, 

 with a double black sjjot. Thorax white, anterior margin of i)ategiai 

 black ; a broad black dorsal stripe. Abdomen white, with a broad 

 black dorsal band, forming with the thoracic band a continuous broad 



