34 INSECUTOR INSClTlvt MENSTRUUS 



FIVE NEW NORTH AMERICAN PYRALID>E 



By HARRISON G. DYAR 



Pyralis cacamica, new species. 



Brownish straw-color, dusted with black ; the dusting heavy over inner 

 third of wing ; inner line obsolete, faintly shown below, strongly dentate ; 

 outer line black, diffused, excurved and finely crenulate mesially, followed 

 by a broad clear space ; a black line along costa centrally, cut by four 

 little pale dots ; a row of terminal black spots. Hind wing pale stramineous 

 with terminal dots. Expanse, 24 mm. 



Cotypes, three specimens. No. 15525, U. S. Nat. Mus. ; San Diego, 

 California, July, 1911 (G. H. Field). 



One of the cotypes is in the collection of Mr. Field. 



Ambesa monodon', new species. 



Close to A . mirahella Dyar, but the abdomen and hind wings whitish, 

 without any yellow tint ; fore wing with the markings more contrasted, 

 cell and costa distinctly white, the excursion of the inner line forming one 

 long blunt tooth, not a double point. Allied also to A. walsinghami 

 Ragonot, but the tooth of inner line much longer. Expanse, 1 8 mm. 



Type, female. No. I 5526, U. S. Nat. Mus. ; Stockton. Utah, July 1, 

 1907 (T.Spalding). 



Tacoma submedianella/ new species. 



Similar to T. feriella Hulst, but rather smaller, of a more whitish tone, 

 due to the denser white irrorations ; instead of the quadrate white patch, 

 a long white streak along submedian from base to above tomus, widened 

 irregularly just beyond inner line. Expanse, I 5 mm. 



Cotypes, three females. No. 15524, U. S. Nat. Mus.; La Puerta, 

 California, July, 1911 (Wright & Field). 



One of the cotypes is in the collection of Mr, W. S. Wright. With- 

 out seeing a male, the generic position is uncertain. 



Yosemitia maculicula, new species. 



Dark gray ; fore wing with scattered black scales, without any of the 

 usual mcurkings ; the dark scales lie mostly along the veins, especially in a 

 dash along center of median vein, at the origin of veins 3-5 and the veins 

 toward apex of costa, not forming continuous lines. Hind wing whitish, 

 tinged with gray on costa. Expanse, 23 mm. 



