22 



XHSriTED STATES NATIONAL MUSEUM BULLETIN 207 



forewing more brownish gray and the whitish areas 

 more strongly contrasted; central costal area dis- 

 tinctly white; dark outer margin of antemedial line 

 brown, narrow on costa; costa before it white, entire 

 basal area having some white dusting; discal dots 

 distinct, separate. Hind wing pale fuscous. Alar ex- 

 panse, 18 mm. 



Type locality: Austin, Tex. (type in AMNH, ex 

 Rutgers). 



Food plant: Unknown. 



The above description is drawn from the type, which 

 is worn and faded. I have seen nothing that exactly 

 matches it. 



33. Acrobasis cvmnlae Dyar and Heinrich 



FiGUEE 162 



Acrobasis cunulae Dyar and Heinrich, Proc. Ent. Soc. Washing- 

 ton, vol. 31, p. 37, 1929. — McDunnough, Check list, No. 

 6102, 1939. 



Forewing pale slate gray; basal area paler; midcostal 

 area with some faint pale dusting, especially about the 

 discal spots; scale ridge weak and little or not at all 

 darker than the ground color of the wing; sub terminal 

 line distinct, with a narrow, dentate, dark inner border, 

 neither the pale line itself nor its dark border strongly 

 contrasted; discal dots blackish, separated and rather 

 conspicuous. Hind wing smoky fuscous. Alar ex- 

 panse, 20-24 mm. 



The male genitaha have what appears to be a dis- 

 tinguishing specific character in the decidedly broad- 

 ened lateral elements of the apical projection of gnathos. 



Type locality: Mobile, Ala. (type in USNM). 



Food plant: Pecan. 



Disteibution: Florida, Monticello (May); Georgia, 

 Cairo (May), DeWitt (M.&y); Alabama, Auburn (May), 

 Mobile (May); Mississippi, Wiggins (May). 



Close to but apparently distinct from caryivoreUa. 



34. Acrobasis caryivorella Ragonot 

 FiGUBB 161 



Acrobasis caryivorella Ragonot, N. Amer. Phycitidae, p. 4, 1887; 

 Monograph, pt. 1, p. 108, 1893.— Hulst, U. S. Nat. Mus. 

 Bull. 52, p. 419, 1903.— Hill, Florida Ent., vol. 21, p. 12, 

 1938.— McDunnough, Check list, No. 6087, 1939.— Craig- 

 head, U. S. Dep. Agr. Misc. Publ. 657, p. 450, 1950. 



Acrobasis caryaevorella Hulst, Phycitidae of N. Amer., p. 121, 

 1890 (misspelling). 



Acrobasis conjivorella Hulst, in J. B. Smith, List of the Lepi- 

 doptera of Boreal America, No. 4262, 1891 (misspelling). 



Acrobasis caryae Dyar (not Grote), Proc. Ent. Soc. Washington, 

 vol. 10, p. 46, 1908. 



Forewing dark bluish gray, nearly black; basal area 

 towards costa (above the scale ridge) and a small tri- 

 angular area on costa adjacent to subterminal line 

 powdered with grayish white; scale ridge black, on 

 some specimens bordered outwardly by a faint ocherous 

 red patch (especially on specimens reared from hickory) ; 

 subterminal line pale gray, faint; discal dots distinct, 

 separate or confluent. Hind wing smoky white to 

 smoky fuscous, darker on female than on male. Alar 

 expanse, 19-24 mm. 



Type locality: Missoiu-i (type in Paris Mus.). 



Food plants: Hickory, walnut, pecan. Larvae 

 boring in the buds and new growth of the stems. 



Distribution: Massachusetts, Melrose (June, July); 

 Maryland, Beltsville (May, July, Aug.), HyattsviUe 

 (June), Prince Georges County, (June) ; North Carolina, 

 "N. Car. Dept. Agr."; South Carolina, Summerton 

 (May); Georgia, Albany (May), Barnesville (May, 

 3wie>) ; Florida, MonticeUo (May, July), Orlando (Apr.); 

 Mississippi, Biloxi (Aug.), State College; Missouri; 

 Texas, Austin (Aug.), Brovrawood (May, June), 

 Menard (June), Victoria, Waco (Apr., May, June); 

 New Mexico, Carlsbad (Aug.). 



The species is of some importance in the Gulf States 

 as an enemy of pecan and the name caryivorella has 

 appeared several times in economic pubhcations but 

 nearly always wrongly applied to specimens of caryae 

 Grote. Specimens of the true caryivorella have also 

 been identified as caryae on the basis of Dyar's (1908) 

 misapplication of the two names. 



35. Acrobasis comacornella (Hulst), new combination 

 Figure 136 



Acrocaula comacornella Hulst, Canadian Ent., vol. 32, p. 170, 

 1900.— McDunnough, Check list. No. 6078, 1939. 



Forewing with dark areas glossy, purplish brown; 

 extreme base of wing dark, followed by a rather narrow 

 subbasal whitish area; median costal area narrowly 

 whitish; outer area uniformly dark; subterminal line 

 obscure, not bordered by darker lines; discal dots 

 distinct, dark brovra, the lower dot tvrice the size of 

 the upper; a little red on the antemedial line towards 

 costa. Hind wing whitish with a faint ocherous 

 fuscous tint; rather glossy; veins very faintly darkened; 

 a narrow dark line along termen. Alar expanse, 17 mm. 



Detail of male genitalia figured from type. 



Type locality: Blanco Coimty, Tex. (type in 

 AMNH, ex Rutgers). 



Food plant: Unknown. 



The male type is obviously an Acrobasis without sex- 

 scaling. It resembles very much a specimen of caryi- 

 vorella (in USNM) from Victoria, Tex., except that the 

 hind wing is paler, the subterminal line less distinct, 

 and the discal dots larger and more contrasted. I sus- 

 pect that it is nothing more than a variety of caryi- 

 voreUa. 



36. Acrobasis betuleUa Hulst 

 FiGUBB 164 



Acrobasis betulella Hulst, Phycitidae of N. Amer., p. 125, 1890. — 

 Ragonot, Monograph, pt. 1, p. 107, 1893. — Dyar, Proc. 

 Ent. Soc. Washington, vol. 10, p. 47, 1908.— Forbes, Cornell 

 Mem. 68, p. 618, 1923.— McDunnough, Check list. No. 

 6101, 1939. 



Forewing dark gray faintly tinted with reddish violet 

 and with white dusting on basal area and forming a 

 triangulate patch from costa before subterminal line, 

 the white dusting faint (less contrasted than on caryi- 

 vorella); scale ridge black, without any red bordering 

 patch or bar; discal dots at end of cell distinct, separate; 

 antemedial line obscure, almost obsolete; subterminal 



