BAGWORM MOTHS OF THE WESTERN HEMISPHERE 33 



situated immediately anterior to ostimn, frequently fused with bases 

 of third apophyses. Seventh segment with caudal hair tufts located 

 laterally and ventrally. Spermatheca and accessory glands small, 

 both arising from vestibulum. Ductus seminalis of medium length, 

 slightly shorter than bursa copulatrix. 



1. Solenobia walshella Clemens 



Figures 1, 64, 149, 169, 188, 188a, 243, 296, 319, 361; Map 2 

 Solenobia walshella Clemens, Proc. Ent. Soc. Phil., vol. 1, pp. 132-133, 1862. — 

 Packard, Guide Study Insects, p. 346, 1869. — Chambers, Can. Ent., 

 vol. 5, pp. 74-75, 1873; vol. 8, p. 19, 1876.— Tutt, Brit. Lep., vol. 2, p. 199, 

 1900.— Dyar, U.S. Nat. Mus. Bull. 52, no. 4072, 1902 [1903].- Forbes, 

 Cornell Univ. Agric. Exp. Sta. Mem. 68, p. 144, fig. 103, 1923.— Forbes in 

 Leonard, Cornell Univ. Agric. Exp. Sta. Mem. 101, p. 539, 1928. — Dalla 

 Torre and Strand, Lep. Cat., pars 34, p. 35, 1929. — McDunnough, Check 

 List Lep. Canada and USA, part 2, no. 9539, 1939.- — Williams, Journ. 

 Morph., vol. 75, pp. 251-260, figs. 1-2, 1944.— Tietz, Lep. Penn., p. 157, 

 195?. — Sauter, Ann. Soc. Suisse Zool. Mus. Hist. Nat. Genfeve, vol. 63, 

 fasc. 3, no. 27, p. 541, 1956. 



Male. — (Fig. 1.) Scales of face light brown, those of vertex usually 

 with whitish tips. Apical segment of palpi 2.5x length of basal one. 

 Antennae (fig. 361) 27-36 segments, brownish fuscous, spotted slightly 

 with white. Foretibia (fig. 169) with subapical spur approximately 

 }i length of tibia. 



Forewings white to greyish white, mottled with almost equal 

 amount of brownish fuscous; scales (fig. 319) of cell broadly oblance- 

 olate with usually 3-4 apical dentations; 11 veins present, with 

 accessory cell; intercalary cell absent in both \vings. Hind^vings light 

 grey, 6-veined; M2 and M3 either stalked or connate. Wing expanse 

 12-14 mm. 



Male genitalia. — (Fig. 243.) As described for genus. 



Female. — Length 6-7 mm. Antennae long with 20-24 segments. 

 Middle tibia with either one or two apical spurs. Plind tibia 

 with apical pair. Tarsi 5-segmented. 



Female genitalia. — (Fig. 296.) Bases of third pair of apophyses 

 connected by curved transverse bar. Accessory glands bifid with 

 two small symmetrical lobes; spermatheca and accessory glands much 

 smaller in volume than vestibulum. 



Case. — (Fig. 64.) 7-10 mm. long; greatest diameter 1.5-2 mm.; 

 fusiform in outline, of somewhat leathery consistency. Silk greyish 

 color, covered frequently with tiny sand grains; fragments of lichens, 

 larval excrement, various small animal remains also may be attached. 



Type. — In the Academy of Natural Sciences, Philadelphia. 



Type locality. — Not definitely stated, but the collector, Benjamin 

 D. Walsh, was a resident of Kock Island, Illinois (Clemens, 1862). 



Recorded hosts, — "Lichens" (Chambers, 1873), 



