. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 322 bulletin: museum of comparative zoology Ri joining costa about middle of wing; microtrichia of anterior veins hair-like; male dichoptic. (Parasimulium, Calif.) PARASIMULllNiE Ri joining costa well beyond middle of wing; microtrichia of anterior veins more bristle-like, sometimes spiniform at least on costa; male usually holoptic b Radial sector forked, the two branches close together; second joint of hind tarsus without dorsal incision, the first joint apically truncate. (Prosimulium, Helodon, Holarc; Cnephia, Nea
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 322 bulletin: museum of comparative zoology Ri joining costa about middle of wing; microtrichia of anterior veins hair-like; male dichoptic. (Parasimulium, Calif.) PARASIMULllNiE Ri joining costa well beyond middle of wing; microtrichia of anterior veins more bristle-like, sometimes spiniform at least on costa; male usually holoptic b Radial sector forked, the two branches close together; second joint of hind tarsus without dorsal incision, the first joint apically truncate. (Prosimulium, Helodon, Holarc; Cnephia, Nearc; Taeniopterna, Palaearc.) PROSIMULIlNiE Radial sector not forked c Hind metatarsi apically truncate, front metatarsi not broadened . d Hind metatarsi roundly projecting below at apex e £< R, R». 515 c, i<v f\t 513. 616 Cu, Figs. 513-517. Chironomidae, Ceratopogonidae, Simuliidae Chironomus, wing (Kieffer) 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. Cambridge, Mass. : The Museum
Size: 1781px × 1403px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
