. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ADDITIONS TO THE CYRTOSIINAE (BOMBYLIIDAE) OF SOUTH AFRICA I 19 a group character, it is referable to the group of cyrtosiine genera, such as Cyrtosia, Platypygus, Cyrtisiopsis, Ceratolaemus and Glabellula, in which a marginal cell is present in the wings, even though sometimes much reduced. On the other hand the rest of its wing-characters, as well as certain antennal and cephalic characters, place it in close proximity to Euanthobates. By comparing it with the descriptions xand illustrations of spe
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ADDITIONS TO THE CYRTOSIINAE (BOMBYLIIDAE) OF SOUTH AFRICA I 19 a group character, it is referable to the group of cyrtosiine genera, such as Cyrtosia, Platypygus, Cyrtisiopsis, Ceratolaemus and Glabellula, in which a marginal cell is present in the wings, even though sometimes much reduced. On the other hand the rest of its wing-characters, as well as certain antennal and cephalic characters, place it in close proximity to Euanthobates. By comparing it with the descriptions xand illustrations of species of the Palaearctic Glabellula, which also has a similarly reduced marginal cell, its wings (text-fig. 6), like those of Euanthobates, differ in having the first basal cell distinctly very much longer than the second, and this second basal cell is apparently not formed by the fusion of a discoidal and a second basal cell as is suggested in the case of Glabellula; only 3 longitudinal veins, not 4, radiate out from this second basal cell; the 4 posterior cells not formed directly by these delimiting longitudinal veins, but the fourth vein bifurcates into two branches, forming the elongate triangular second posterior cell; first posterior cell, unlike that of Glabellula, distinctly very much and markedly narrower and narrowed apically, as in Euanthobates, to open on anterior or costal margin and not on apical part of it or very near apex of wing as in Glabellula; triangular marginal cell comparatively larger than in Glabellula. Other characters which also distinguish it from Glabellula are the markedly short face, the great reduction of antennal joint 4, which is minute, scarcely perceptible as in Euanthobates, and not elongate, slender or even rod-like, and the distinctly less convexly humped thorax. From Euanthobates, to which it is generically very closely related and with which it shares such wing-characters as the much narrowed first posterior cell, the very short part of
Size: 2415px × 1035px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
