Revision of the three-striped species of Phyllogomphus (Odonata, Gomphidae)

Content Provider	Semantic Scholar
Author	Dijkstra, Klaas-Douwe Benediktus Clausnitzer, Viola Vick, Graham S.
Copyright Year	2006
Abstract	tropical Africa, largely allopatric to Ceratogomphus Selys, 1854 of southern Africa and Isomma Selys, 1892 (including its probable synonym Malgassogomphus Cammaerts, 1987) of Madagascar. Together these genera form the distinctive Afrotropical subfamily Phyllogomphinae (Carle 1986). Despite the revision of Phyllogomphus by Fraser (1957), the genus is in urgent need of taxonomic attention (Dijkstra 2003, Vick 1999). Until now 22 names have been introduced, but they probably represent less than half that number of species (table 1). Phyllogomphus can be separated into two groups: a) species with five stripes on each side of the synthorax and b) species with the antehumeral and metepisternal stripes absent or strongly reduced, thus leaving only three thoracic stripes. The five-striped species occur from The Gambia to Nigeria. The three-striped species occur further east, ranging from Bioko and Cameroon to Kenya and South Africa. The present paper revises the latter group. Much of the confusion within this group originated from Fraser’s (1949, 1957) misinterpretation of P. selysi. The extensive material labelled as P. selysi in the Musée Royal de l’Afrique Centrale, Tervuren (mrac) (27 males, 9 females) contains two species. Only a small proportion (3 males, 3 females, mostly type material) agrees with Schouteden’s (1933) species. The majority belongs to a different species, which Fraser (1949, 1957) however described as P. selysi. Recently, the first author found P. selysi Schouteden and P. selysi sensu Fraser nec Schouteden occurring together in W Uganda (figs. 27, 29-30). The quest for the correct name of the second species provided the stimulus for this paper. Due to Fraser’s mistake, an over-emphasis on variation and the description of taxa based on females only, sixteen names have been introduced in this group, a quarter with female holotypes. We believe that only four threestriped species exist, which are somewhat variable and widely overlapping in range, size and colour, but morphologically very distinctive.
Starting Page	1
Ending Page	14
Page Count	14
File Format	PDF HTM / HTML
DOI	10.1163/22119434-900000183
Volume Number	149
Alternate Webpage(s)	http://addo.adu.org.za/pdf/D&al2006a_Phyllogomphus.pdf
Alternate Webpage(s)	https://doi.org/10.1163/22119434-900000183
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article