. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GYNANDROMORPHISM IN LEPIDOPTERA. 253 Thus, in this case almost all male and female genital structures, except the male uncus, coexist, though the male ones are deformed; they are disposed, with the exception of the rudimentary sub- scaphium, on both sides of the plane of bilateral symmetry. This case is similar to that of the G. rhamni L. in the respect that here also the paired female papillae and the paired male valvae are divided from one another by the frontal plane. Lycxna argus L. (xgon Schiff.).1—Wings: male on the le


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GYNANDROMORPHISM IN LEPIDOPTERA. 253 Thus, in this case almost all male and female genital structures, except the male uncus, coexist, though the male ones are deformed; they are disposed, with the exception of the rudimentary sub- scaphium, on both sides of the plane of bilateral symmetry. This case is similar to that of the G. rhamni L. in the respect that here also the paired female papillae and the paired male valvae are divided from one another by the frontal plane. Lycxna argus L. (xgon Schiff.).1—Wings: male on the left and female on the right. Antennae uniform. Both fore legs with female tarsus. Copulatory apparatus (Fig. 10) predominantly female. Tergite and sternite of the 8th segment nearly normal except for the distal angles of the tergite being obtusely shortened. loth tergite. FIG. 10. Copulatory apparatus of the gynandrous Lyccena argus L.: v., valvoid »' pr. v., processus valvae of the normal male; other abbreviations as in Fig. 9.—Zeiss, obj. AA, oc. I. split on its dorsal surface. Apophyses anteriores and posteriores, as well as papillae anales, normal. Membranous tube (Fig. 10, pr. d. b.) bearing on its tip the ostium bursae, developed, but about three times stouter than normal. A pair of lamellae antevaginales a little wider and shorter than normal ones. Ostium bursae present, its ductus indistinct. Bursa copulatrix bag-like, long, plicated, nearly normal. A deformed, strongly chitinized, plate lying in the body cavity between the 8th and Qth tergites may be considered as male valvoid, because on its distal extremity it 1 Species with claws on the fore Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mas


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology