WM. G. DIETZ, M.D. 63 



Var. annectella. (Plate IV, fig. 34a.) 



Three specimens in my collection agree with the above 

 very closely, except that they lack the conspicuous spot in 

 middle of costa, and instead of the dash on the fold in basal 

 space, a short dash above and beneath, 



Had.— Iowa (Iowa City), La. (Vowell's Mill). 



40. H. vestaliella n. sp. (Plate IV, fig. 35.)— Palpi long, white, 

 the second joint rather thick, tinged with yellowish above, the third 

 joint two-thirds the length of the former, finely speckled with fuscous. 

 Basal joint of antennae and pecten white, former nearly twice as long 

 as wide, shaft not excised above the base, pale yellowish-fuscous. 

 Head white, face yellowish. Thorax white, with some lustre. Fore- 

 wings narrow, pointed, costa approximately straight, white, very 

 lightly and inconspicuouly dusted with pale brown here and there, 

 scarcely clouding the ground color; markings dark brown, as follows: 

 basal part of extreme costa, a subcostal spot near the base, a short 

 streak in basal part of wing immediately beneath the fold, a streak in 

 the fold beginning at one-third, an elongate spot obliquely above (first 

 discal), a small spot at lower margin of cell at three-fifths of wing- 

 length, two spots at end of cell, a strongly angulated line in apical 

 part of wing, commencing in a nebulous spot within the costal margin 

 and a little beyond the cell and ending in a similar spot within the 

 dorsal margin, a row of dots along periapical margin ; at one-third of 

 the winglength is a diffused, ill-defined costal and dorsal spot ; cilia 

 gray, sprinkled with white scales. Underside fuscous. Hindwings 

 about as wide as the forewings, rather acutely pointed, costa slightly 

 retuse in outer half ; grayish-white, very slightly dusted with fuscous ; 

 cilia over 1, pale gray, yellowish towards the base. Abdomen above 

 and beneath white, anterior portion of upper segments brown, anal 

 bush yellowish-white. Underside of thorax and legs silvery white, 

 tinged with reddish fuscous. Expanse 12.0-14.0 mm., 0.48-0.56 inch. 



Hab. — Md. (Plummer's Island, June and July); Penna. 

 (Hazleton, July); Mass. (Cohasset, July). 



Four specimens from fhe Nat. Mus. Coll. and two in my 

 own are before me. Conspicuous by its white color; mark- 

 ings variable in extent. In the Massachusetts specimen (Nat. 

 Mus.) the marginal spots at one-third are pronounced, coal- 

 esce and form a fascia, while in others scarcely a trace of 

 these spots is in evidence. A specimen from Brownsville, 

 Tex., in the Nat. Mus. Coll. while seemingly agreeing in 

 coloration, has decidedly narrower hindwings. Vein 5 of 



TRANS. AM. ENT. SOC, XXXVI. MARCH, 1910. 



