14 



tnsriTED STATES NATIONAL MUSEUM BULLETIN 207 



specimens. All reared examples we have from either 

 cranberry or blueberry are typical vaccinii. 



Alar expanse, 12-18 mm. 



Type locality: North Carolina (type in Paris 

 Mus.). 



Food plant: Unknown. 



Distribution: Maine, Monmouth (June), Sebec 

 Lake (July); New Hampshire (June, July); Massachu- 

 setts, Cohasset (July), Framingham (Jime), Winchendon 

 (July), Worcester (July) ; Connecticut, East River (July) ; 

 New York, Liberty (June), Sullivan County (July); 

 Pennsylvania, Hazleton (May); North Carolina, Tryon 



(July). 



In the Barnes and old U. S. National Museum Col- 

 lections these examples were about equally divided 

 under the two names, amplexella and vaccinii. 



6. Acrobasis tricolorella Grote 

 Figures 135, 643 



Acrobasis tricolorella Grote, Bull. U. S. Geol. Geogr. Surv. Terr., 

 vol. 4, p. 694, 1878. — Ragonot, Monograph, pt. 1, p. 93, 

 1893.— Forbes, Cornell Mem. 68, p. 618, 1923. 



Mineola tricolorella (Grote) Hulst, Phycitidae of N. Amer., p. 

 127, 1890.— McDunnough, Check list, No. 6111, 1939. 



Mineola scitulella Hulst, Canadian Ent., vol. 32, p. 169, 1900. — 

 Hungerford, Idaho Agr. Exp. Station Bull. 149, p. 29, 

 1927; Bull. 164, p. 29, 1929.— Pack and Dowdle, Journ. 

 Econ. Ent., vol. 23, p. 321, 1930. — Haegele, Journ. Econ. 

 Ent., vol. 25, p. 1073, 1932.— Essig and Kiefer, Monthly 

 Bull. California Dep. Agr., vol. 22, p. 153, 1933.— McDun- 

 nough, Check list, No. 6110, 1939. (New synonymy.) 



Forewing grayish fuscous more or less dusted with 

 whitish scales, in some specimens well diffused over the 

 middle of wing, giving it a pale slate ground color, but 

 normally concentrated into a pale patch from costa 

 before subterminal line, including the discal mark, and 

 a pale terminal suffusion below apex; usual subbasal 

 white area constricted into a narrow, sharply defined 

 antemedial band, outwardly oblique from costa to top 

 of cell, thence vertical to iimer margin and bordered 

 outwardly on its vertical portion by a more or less 

 triangular, contrasted orange or reddish orange patch; 

 bordering the white line and the orange patch out- 

 wardly, a black oblique angulate line extending to 

 near middle of inner margin and beginning on costa in 

 a more or less angulate and diffused blackish patch 

 (similar to but not so sharply defined nor contrasted as 

 the black costal patch on indigenella) ; subterminal line 

 distinct, narrow, white, angled inwardly at vein 6 and 

 lower fold and curved outwardly between, bordered 

 inwardly by a narrow black line and outwardly by a 

 black costal spot and a more or less pronounced orange 

 or reddish orange band (well marked in many eastern 

 and western specimens, but sometimes obscured by 

 dark scaling) ; discal spots usually fused into a slightly 

 curved, black bar along discocellular vein, rarely 

 separated. Hind wing smoky white to pale smoky 

 fuscous. Alar expanse, 18-22 mm. 



Male genitalia with cucullus of harpe of more even 

 width throughout and apex more evenly rounded than 

 in other species of the genus. Eighth abdominal seg- 



ment of male with a single central, ventral hair tuft 

 (supplementary ventral hair tufts on the other species). 

 Female genitalia with signum present as a small, 

 granulate, cup-shaped patch. 



Type localities: Oldtown, Maine (tricolorella, in 

 BM); Colorado (scitulella, in AMNH, ex Rutgers). 



Food Plants: Apple, apricot, catalina cherry, plum, 

 prune (larvae feeding in buds and fruits, probably also 

 on leaves), also recorded from galls on chokecherry 

 (Park and Dowdle). 



Distribution: United States: Maine, Oldtown, 

 Bar Harbor (July), Orono; New Hampshire, Hampton 

 (July) ; Massachusetts, Amherst (Hatch Exper. Station, 

 July); New York, Catskill Mts., Illion (July); New 

 Mexico, Albuquerque (July); Colorado, Denver, Glen- 

 wood Springs (May, July, Aug., Sept.), Grand Junction 

 (Aug.), Gunnison County (July); Utah, BeUevue (May), 

 Dividend (Aug.), Eureka (Aug.), Logan (July), Park 

 City (July), Provo (July); Idaho, Boise (Sept.), Emmett 

 (July); California, Loma Linda (Aug.), Mount Lowe 

 (May, July), San Diego (June, July), Santa Barbara 

 (Aug.), Warner Mts. (Modoc County, July); Oregon 

 Lake View (Aug), The Dalles (June); Washington, 

 Prosser (Jtme), PuUman (July), Walla WaUa (Aug.), 

 Wenatchee (Aug.). Canada: Ontario, Ottawa (July); 

 Manitoba, Cartwright; British Columbia, Arrowhead 

 Lake (June). 



The species seems to be abundant in our western 

 states and relatively scarce in the east, to judge by 

 examples in collections, and has attracted some atten- 

 tion as a fruit pest in Utah, Idaho, and California. 

 There is nothing to distinguish western from eastern 

 specimens and the one detail that Hulst relied upon 

 for the separation of his scitulella (the presence of 

 an orange outer border to the subterminal line) does not 

 hold. It is present in eastern and western examples 

 and equally variable in both. I am therefore sinking 

 the name in the synon3Tny of tricolorella. 



7. Acrobasis comptella Ragonot 



Figure 646 



Acrobasis comptella Ragonot, N. Amer. Phycitidae, p. 4, 1887. — 

 Hulst, Ent. Amer., vol. 5, p. 156, 1889 (makes synonym of 

 caliginella Hulst). 



Forewing dark gray dusted with white, the white 

 dusting concentrated on basal area, on costal median 

 half of wing (forming a pale angulate patch which 

 includes the discal spots), and in terminal area beyond 

 subterminal line; in some specimens the white dusting 

 is more extended, making most of the basal, median, 

 and terminal areas pale ashy gray; outwardly bordering 

 basal pale area a black line (narrowing from a shallow 

 triangulate patch on costa) extends obliquely outward 

 to top of cell thence vertically to iimer margin, bordered 

 outwardly on vertical part by a triangulate, tawny or 

 reddish brown patch; subterminal line white, sinuate, 

 bordered inwardly by a narrow, blackish line and out- 

 wardly, at costa, by a black smudge; discal spots at end 

 of cell distinct, separate, black. Hind wing pellucid. 



