A REVLSION OF THE DELTOID MOTHS — SMITH. 97 



iiiid this ill turn by a iaiuter yellow brown line. From the costa it is 

 ontwanlly ol)li(]ue with a marked inward ciirvin';- to vein ."), then nearly 

 straight to vein 0, forming- an obtnse spur and greatly ol)li(|iie inwardly, 

 unequally nnirked on the veins, and reaching the inner margin close to 

 the transverse anterior line in the female, but a, little moriMemote Croni 

 it in the male. Subtemiinal line punctiform, consisting of black and 

 white dots and scales, sometimes forming a subcontinuous line, but 

 more usually entirely obsolete. A very ])romiuent diffuse black streak 

 extends from the apex inwardly nearly to the outward angulation of 

 the transverse posterior line. A scries of small, black terminal luuiiles. 

 The median space is sometimes ef^nly colored, brown, varying almost to 

 blackish, sometimes darkest interiorly, and with a more rosy sutfusion 

 toward tlie costa. Orbienlar, a small round dot of raised scales. JJeni- 

 form, a slender black lunule, also of elevated scales. These markings 

 are variably evident, most prominent, of course, in the paler specimens, 

 and apparently obsolete in the darker. Secondaries even, smoky fus- 

 cous, varying in tint. Beneath, smoky gray to fuscous, with a variably 

 evident common outer line, and on secondaries a discal s])ot or lunule. 



Ex[)ause of wings, -o to 35 mm. = l to 1.40 inches. 



Hauitat. — Xova Scotia to District of Columbia; west to tlie Central 

 States: June to August. 



This is not an uncommon species, and offers a nund)er of distinctive 

 features. The forewings are narrower and more i)ointed than in any 

 other; the outer margin is very obli(iue, only a little rounded, and not 

 at all produced medially or excavated below the apex, Avhile the fringes 

 are feebly scalloped. The contrasts between the dark median and 

 j)aler surrounding spaces aie variably marked, from white to gray, 

 brown, the darker specimens being males, as a rule. A variable feature 

 is the distance between the median lines on the inner margin, and as a 

 rule the transverse posterior line is much the most distinct, crossing 

 the space below vein 1. 



Guenee described from a single female in his own collection, and 

 Walkers type of B. henUjudlis is also a female. Zeller's type of />. laci- 

 niosa was a full-marked dark male. 



Bomolocha bijugalis, \\'all<er. 



1859. Wiilker, Cat. Bnr. Mu.s., Hctcrotera, X\T, :W, Hi/pena. 

 1870. Robinson, Ann. Lye, Nat. Hist., N. Y., IX, 311. llypoia. 



1872. Grote, Trans. Am. Entomological Soc, IV, 103, Iljipenn. 



1873. Grote, Trans. Am. Entou)oloKicaI Soc, IV, 309, pi. i, lig. 93, Bomolocha. 

 1873. Grote, Canadian Entomologist, V, 226, Bomolocha. 



palVialis, Zeller. 



1872. Zeller, Verb. k. k. Zool.-Bot. Ges., XXII, !(>(), jil. ii, tig. 0, Ihiixna. 



1873. Grote, Canadian Knioniologist, V, 220, pr. syn. 

 feci all fi, Grote. 



1881. (Jrote, Canadian Entomologist, XIII. 13:!, liomolochn. 

 18!)3. Sniitli, Bull. IT. S. Nat. :»Ius., U, 391, pr. syn. 



TSOL' — Xo. 48 7 



