. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 402 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY 1924 (Banks) and July, 1936. Females have been taken from June to August, 1934," 1936, 1950, and 1954. Chamberlin and Ivie (1936) reported both sexes from my collection of 1928. Micrathena cbassa (Keyserling), 1863 (Figures 21-25) Aerosoma crassum Keyserling, 1863 A. crassum Keyserling, 1892 M. crassa Simon, 1895 M. crassa Petrunkevitch, 1911 M. crassa Reimoser, 1917 M. crassa Petrunkevitch, 1925 M. crassa Roewer, 1942 If. crassa Bonnet, 1957 If. crassa Chickering, 1960
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 402 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY 1924 (Banks) and July, 1936. Females have been taken from June to August, 1934," 1936, 1950, and 1954. Chamberlin and Ivie (1936) reported both sexes from my collection of 1928. Micrathena cbassa (Keyserling), 1863 (Figures 21-25) Aerosoma crassum Keyserling, 1863 A. crassum Keyserling, 1892 M. crassa Simon, 1895 M. crassa Petrunkevitch, 1911 M. crassa Reimoser, 1917 M. crassa Petrunkevitch, 1925 M. crassa Roewer, 1942 If. crassa Bonnet, 1957 If. crassa Chickering, 1960 Petrunkevitch (1925) reported this species from Panama but it has not appeared in my collections nor have I found it recorded. External Anatomy of Micrathena Figures 21-25, If. crassa Pig. 21. Abdomen, lateral view. Fig. 22. Cephalothorax, lateral view. Figs. ;. Epigynum; from below, posterior view, and in profile, re- 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
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