Bulletin of the United States Geological and Geographical Survey of the Territories . In Acrobasis ruhrifasciella, 3,4, and 5 are exceedingly close at base; the cross-veinvanishes centrally; here it is completely Neuration of hind wings resembling Catastia. The male antennae are bent at base with a scale-ridge. The maxillarypalpi are concealed by the ascending labial palpi, and terminate in a tuftof testaceous hair. In the female, this tuft is wanting, and the antennaeare simple. This form differs from Pempelia as defined by Heineman by the hindwings being 8-veined, and in tha
Bulletin of the United States Geological and Geographical Survey of the Territories . In Acrobasis ruhrifasciella, 3,4, and 5 are exceedingly close at base; the cross-veinvanishes centrally; here it is completely Neuration of hind wings resembling Catastia. The male antennae are bent at base with a scale-ridge. The maxillarypalpi are concealed by the ascending labial palpi, and terminate in a tuftof testaceous hair. In the female, this tuft is wanting, and the antennaeare simple. This form differs from Pempelia as defined by Heineman by the hindwings being 8-veined, and in that 4 and 5 of the primaries spring froma common stalk; from Salebria also by the latter character. Pempelia pravella, n. s., fig. 8 (neuration). (J 9. Blackish and gray, resembling Acrobasis rubrifasciella in orna-mentation. Base of primaries whitish-gray; no raised scales. Anteriorline blackish, diffuse, consisting of two outwardly oblique, slightlywaved lines, usually coalesced, but allowing sometimes the narrow grayspace between them to be seen. Median field gray; two superposed. GROTE ON NORTH AMERICAN PYRALID^. 6S5 black dots ou cell; outer line whitisb, finely dentate, with a littledeeper submedian notch, margined on both sides by a blackish row of terminal black dots; fringes gray. Hind wings testaceous-fuscous, rather iDale, with pale fringes. Beneath, the hind wings areyellowish; fore wings fuscous, with the exterior line marked. Abdomentestaceous-fuscous ; thorax and head dark grayish. Legs gray, markedoutwardly with black. Expanse, 19 to 20 mil. Eighteen specimens ex-amined, taken by Mr. Charles Fish, of Oldtown, Me.; also by ProfessorFernald at Orono. This species so nearly resembles riibrifasciella at first glance that itmight be considered an extreme variety, although strongly genericallydistinct. It is not so smoothly scaled, and the tone is grayish, notbrownish-fuscous. Salebria Zeller. Fore wings 11-veined, with veins 4 and 5 separate. Hind wings with8 v
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgeology, bookyear1874
