90 



UNITED STATES NATIONAL MUSEUM BULLETIN 2 07 



darker, dull smoky white to brown, with veins and ter- 

 minal edge correspondingly darker. Alar expanse, 

 17-30 mm. 



Male genitalia with characters as given for the genus. 

 Female genitaha with signum extremely variable, rang- 

 ing from a small, weakly spiaed plate, like that of the 

 para type (fig. 764), to a large plate with rather long 

 slender spines (fig. 763). In one large female of a reared 

 series from Virginia the signum is completely absent. 

 This variability in female structure is not matched by 

 anything in the male, where the genitalia are remark- 

 ably imiform for large and small specimens ahke. 



Type locality: Florida (pergratialis, 9, in AMNH, 

 ex Eutgers; grotella, 9, in Paris Mus.); Auburn, Ala. 

 (nubilella, cf , in USNM). 



Food plant: Limabean (larva a borer in the stems). 



Distribution: Maryland, Cabin John Bridge (Aug., 

 Sept.), Salisbury (Sept.); Virginia, Norfolk (May), St. 

 Elmo (Jan., Feb., Mar.) ; North Carolina, Vance Coimty 

 (Aug., Oct.); South Carolina, Florence (June, July), 

 Lyna Plantation (June); Georgia, Savannah (June); 

 Florida, Coconut Grove (Apr., May), Miami (Apr.); 

 Alabama, Auburn (July), Montgomery (July); Arizona, 

 Baboquivari Mts. (June, Aug., Sept.), Huachuca Mts. 

 (July, Aug.), Nogales (July), Palmerlee, Washington 

 Mts., White Mts. (June). 



The species is of some importance as an enemy of 

 limabeans and is known in economic literature as the 

 "limabeam vine borer." The Chittenden (1900) paper 

 cited gives what is known of the life history. There are 

 several later references in publications devoted to eco- 

 nomic entomology but they add nothing to our knowl- 

 edge of the insect. It is not known outside of the 

 United States; at least no specimens have been received 

 or identified from any of the tropical American regions 

 where the species might be expected to occur; and in 

 the United States its distribution seems to be limited 

 to the eastern area from the District of Columbia south 

 to Florida and adjacent GnLf States and to southern 

 Arizona. The only known host is the limabean. The 

 southern Arizona distribution raises a question as to 

 another possible host (probably a wild legume), for the 

 Arizona localities are mostly out of the range of lima- 

 bean cultivation. 



Genera 48-50: Zamagiria to Magariopsis 



[Venational division D. Forewing with veins 4 and 5 connate, 

 shortly stalked or closely approximate for a short distance from 

 base; 3 close to 4-5 at base; 6 bent towards base connate with or 

 shortly separated from the stalk of 8-9 at base. Hind wing with 

 4 and 5 anastomosed from just beyond angle of cell for about 

 half their lengths; cell short. Eighth abdominal segment of 

 male with compound, ventral tufts. Labial palpi of male up- 

 curved; appressed to face or to each other; third segment greatly 

 reduced, acuminate. Gnathos with apical process broadly pro- 

 duced and lateral arms elongate and arising from ventrolateral 

 proiection from tegumen. Female with ductus bursae short and 

 strongly sclerotized towards genital opening and junction with 

 bursa.] 



48. Genus Zamagiria Dyar 



Zamagiria Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 329, 1914. 

 (Type of genus: Zamagiria dixolophella Dyar.) 



Tongue well developed. Antenna of male shortly 

 ciliate, a deep sinus containing heavy scale tuft at base 

 of shaft ; of female simple and weakly pubescent. Male 

 head between the antennae deeply grooved to hold an 

 appressed, matted tuft of long scales arising from the 

 upper edge of frons. Labial palpus recurved-ascending; 

 second segment very long; broadly dilated and hol- 

 lowed within to hold the maxillary palpus; third seg- 

 ment short, acute. In repose the labial palpi are 

 appressed to each other and fit into the groove on head 

 covering both the maxillary palpi and the scale tuft 

 from frons. Maxillary palpus of male in the form of a 

 large aigrette; of the female minute, filiform. Forewing 

 with a ridge of roughened scales preceding the ante- 

 medial line but not reaching to costa; 11 veins; vein 2 

 from before the lower outer angle of cell; 3 from the 

 angle, close to 4-5 at base; 4 and 5 very closely approxi- 

 mate for a short distance from ceU; 6 from upper angle 

 of cell, bent towards base, connate with 8-9; 8 and 9 

 long stalked; 10 from the cell, approximate to the stalk 

 of 8-9 for a short distance from cell; male without costal 

 fold but rough scaled on underside of costa at base. 

 Hind wing with vein 2 from well before the angle of the 

 cell; 3 from the angle; 4 and 5 anastomosed from just 

 beyond the angle for about half their lengths; 7 and 8 

 contiguous or weakly anastomosed for a short distance 

 beyond ceU; cell less than one-fourth the length of wing; 

 discoceUular vein curved. Eighth abdominal segment 

 of male with compound ventral scale tufts. 



Male genitalia with uncus triangulate. Gnathos with 

 apical process broadly produced and variously modified; 

 lateral arms elongate and arising well down from ventro- 

 lateral projections of tegumen. Transtilla absent. 

 Harpe with sacculus more or less produced at apex; 

 clasper in some form usually present; cucullus narrow 

 and reduced. Aedeagus stout; penis armed with strong 

 spine or spines (except in hospitabUis) . 



Female genitalia with bursa armed with strong spine 

 cluster or clusters and usually partially sclerotized; 

 ductus bursae short, strongly sclerotized towards genital 

 opening and junction of biu'sa and ductus bursa (the 

 sclerotizations more or less contorted) ; genital opening 

 broad; ductus seminalis from bursa towards junction 

 of bursa and ductus bursae. 



An easily recognized, compact genus exhibiting strik- 

 ing structural specific differences in genitalia. 



190. Zamagiria dixolophella Dyar 



Figure 286 



Zamagiria dixolophella Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 

 329, 1914. 



Aigrette of male maxillary palpus reddish. 

 Forewing dark smoky gray, the basal area below costa 

 a trifle paler; antemedial line faint, narrow, oblique and 



