. Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. Natural history. 382 Annals of the South African Museum The differences are as indicated in the table (p. 376) to which may be added: antehumeral yellow band broader, fused to yellow of ante- alar sinus in one specimen, very nearly so in the other one; basal yellow ring of segment 7 much broader, between one-half and two- thirds of the segment's length ; dorsal process of tenth segment slightly smaller and different in shape, as shown in Text-fig. 67. Abd. 51, lultr. 41, 2>t. -2-5 mm. These differences, slight as t


. Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. Natural history. 382 Annals of the South African Museum The differences are as indicated in the table (p. 376) to which may be added: antehumeral yellow band broader, fused to yellow of ante- alar sinus in one specimen, very nearly so in the other one; basal yellow ring of segment 7 much broader, between one-half and two- thirds of the segment's length ; dorsal process of tenth segment slightly smaller and different in shape, as shown in Text-fig. 67. Abd. 51, lultr. 41, 2>t. -2-5 mm. These differences, slight as they are, may safely lie claimed as specific, since differences in colour appear together with other structural ones. Especially important is the presence of a frontal yellow band in clijmene. The pair of forms here described recalls another pair. FIG. 67.—Macromia clymene, <J. Kapiri. Terminal segments, right side and dorsal views. closely similar to each other—terpsichore, Forst., and melpomene, Ris, from New Guinea, which we have good reasons to consider as distinct species. Mr. Williamson's studies on North American Macromia give also evidence of specific differences being sometimes very slight in this genus. II DB. SUBFAMILY LIBELLULINAE. In a collection of dragonflies from almost every region of the globe individuals belonging to this systematic unit will probably be in majority over those of all the other units taken together, supposing that the material is not accumulated by a specialist more interested in it than in groups. LibeUulinaea,re numerous in species, many of these. 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 South African Museum; South African Museum. Annale van die Suid-Afrikaanse Museum. Cape Town [etc. , South African Museum, etc. ]


Size: 1894px × 1319px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorsouthafricanmuseum, bookcol, booksubjectnaturalhistory