. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 227 Fore and hind wings with four or five radial veins, rarely with three, Sc and Ri separate (Fig. 374); wings of similar shape, more or less pointed at tip, with ten or more veins, the membrane with minute spines (Fig. 369); fore wings with a thumb-like lobe (jugum) at basal angle (except Neopseustis); a coiled pro- boscis never developed. (Suborder HOMONEURA) (MICRO- PTERYG1NA, JUGATE, ARCHILEP1D6PTERA, ISONEU- R1A) 3 Fore and hind wings dissimilar in shape and venation, hind wings with Sc


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. CLASSIFICATION OF INSECTS 227 Fore and hind wings with four or five radial veins, rarely with three, Sc and Ri separate (Fig. 374); wings of similar shape, more or less pointed at tip, with ten or more veins, the membrane with minute spines (Fig. 369); fore wings with a thumb-like lobe (jugum) at basal angle (except Neopseustis); a coiled pro- boscis never developed. (Suborder HOMONEURA) (MICRO- PTERYG1NA, JUGATE, ARCHILEP1D6PTERA, ISONEU- R1A) 3 Fore and hind wings dissimilar in shape and venation, hind wings with Sc and Ri fused at least at tip (not to be confused with Rs which is usually the only free radial vein (Fig. 368)), rarely two free radial veins present, at most six veins arising from the cell; 370. 2ndA ^stA 374 Figs. 368-374. Lepidoptera 368. Noctua, wings (Forbes): Sc, subcosta, R, radius, M, media, Cu, cubitus (their branches indicated by numbers), A, 2A, 3A, anal veins; cell, discal cell. Noctuidae. 369. Portion of bleached wing membrane, showing attachments of three scales and numerous aculeae. 370. Danaus, head in frontal view: a, base of antenna; e, eye; p, base of proboscis. Danaidx. 371. Nymphalis, head, prothorax and parfof mesothorax (Scudder) Nymphalidx. 372. Crambus, lateral outline of body (Fernald): m, maxillary palpus; 1, labial palpus. 373. Scales from the wings of various Lepidoptera (Scudder). 374. Micropteryx (Forbes): Sc, subcosta; R, radius; M, media; Cu, cubitus; A, anal (their branches indicated by numbers); hum, humeral crossvein; udcv, upper discocellular vein (radio-medial crossvein); ldcv, lower disco- cellular vein; i, intercalated cell; ace. c, accessory cell. 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 Harvard University. Museum of Comparative Zoology. Cam


Size: 2038px × 1226px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology