The Identity of Some East African Species of Saissetia (Homoptera, Coccidae)

1956 ◽  
Vol 47 (2) ◽  
pp. 239-249 ◽  
Author(s):  
G. De Lotto

A systematic review of some species of the Coccid genus Saissetia occurring in East Africa led to the rediscovery of two species—S. persimilis (Newst.) and S. somereni (Newst.)—which although of economic importance have been almost completely neglected since they were first described. Both are redescribed in this paper. One new species recently collected in Kenya is described; this is S. pterolobina.Seven species are dealt with in the paper, including the important and widely distributed S. oleae (Bern.). A provisional key for their separation is included, while one species—S. cuneiformis Leonardi—is sunk as a synonym of S. nigra (Nietn.).

Phytotaxa ◽  
2017 ◽  
Vol 292 (1) ◽  
pp. 57 ◽  
Author(s):  
YA-DONG ZHOU ◽  
YUVENALIS MBUNI ◽  
GUANG-WAN HU ◽  
ZHI-XIANG ZHONG ◽  
XUE YAN ◽  
...  

Cissampelos keniensis, a new species of Menispermaceae described and illustrated here, was collected from the rainforest on the eastern slope of Mt. Kenya. It is distinguished from all other tropical East African species in the genus by its cordate leaves, 4-locular synandrium, glabrous drupes and suborbicular-bilaterally compressed endocarp. A key to distinguish among the eight species of Cissampelos known from tropical East Africa is proposed.


1968 ◽  
Vol 58 (1) ◽  
pp. 47-53 ◽  
Author(s):  
J. D. Bradley

The species of Sesiidae reared from larvae feeding in the vines and tubers of sweet potato (Ipomoea batatas) in Kenya are described as new and named Synanthedon leptosceles and S. dasysceles, respectively. Illustrations are given of the adults and male and female genitalia of both species. S. leptosceles is differentiated from the superficially similar East African species S. erythromma Hmps., which also is associated with sweet potato. Aegeria pyrostoma Meyr. is synonymised under S. erythromma following the examination of type material. S. dasysceles is noted to be readily distinguishable from these and other known species of Synanthedon by the rough scaling and white markings of the legs.


1915 ◽  
Vol 5 (4) ◽  
pp. 273-281 ◽  
Author(s):  
F. W. Edwards

Collections recently received by the Imperial Bureau of Entomology, chiefly from Natal, have brought to light several interesting new forms in this group of flies, and their study has yielded certain unlooked for results which it appears desirable to place on record, together with descriptions of the new species, the types of which have been presented by the Bureau to the British Museum. The opportunity has been taken of publishing revised keys to the African species of Banksinetta and Taeniorhynchus.


Insects ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 160 ◽  
Author(s):  
Jelisaveta Čkrkić ◽  
Andjeljko Petrović ◽  
Korana Kocić ◽  
Milana Mitrović ◽  
Nickolas G. Kavallieratos ◽  
...  

Members of the Monoctonina subtribe have long been neglected in applied studies of the subfamily Aphidiinae, due to their low economic importance, as they do not parasitize pests of cultivated plants. Consequently, data about this group are scarce, including its taxonomy and phylogeny. In the present study, we explore inter- and intraspecific genetic variation of Monoctonina species, including genera Monoctonus Haliday 1833, Monoctonia Starý 1962, Falciconus Mackauer 1959 and Harkeria Cameron 1900. We employ two molecular markers, the barcode region of the mitochondrial cytochrome c oxidase subunit I (COI) and the D2 region of the 28S nuclear gene (28S rDNA), to analyze genetic structuring and phylogeny of all available Monoctonina species, and combine them with morphological data for an integrative approach. We report one new species, and three potentially new species which can be formally described when further specimens are available. Analysis of phylogenetic relationships within the subtribe shows a basal position for the genera Falciconus and Monoctonia, and the close relatedness of Harkeria and Monoctonus.


Zootaxa ◽  
2020 ◽  
Vol 4763 (4) ◽  
pp. 593-599
Author(s):  
CLAUDIA HEMP

A new Stenampyx, S. viridiflavum n. sp., is described from Tanzania. Stenampyx was monotypic and known from Central to West African forests. As with the genus Pseudotomias Hemp, the newly described species in Stenampyx shows a close relationship to the Central and East African forest fauna. 


Zootaxa ◽  
2012 ◽  
Vol 3497 (1) ◽  
pp. 37
Author(s):  
BRUNO MICHEL

The genus Kimulodes was described by Tjeder and Hansson (1992) to accommodate two species, Kimulodes sinuatus originally described as Helicomitus sinuatus by Kimmins (1949) and a new species they named K. angulicornis. Within the tribe Ascalaphini, this genus is characterized by the hairless genae, the absence of a tuft of hairs at the base of the forewing in males, in contrast to the African species of Ascalaphus, and the antennae of males being sinuate or sharply arched with stout tufts of hairs on the basal flagellomeres. The genus Kimulodes was known from Central and East Africa, but remained unrecorded from West Africa. The material collected by a colleague, Jean-Michel Maldès (CIRAD), during a prospecting mission in Togo in 1990 included a male of an undescribed species of Kimulodes, which is described below. Furthermore, examination of the collection of the Museum National d’Histoire Naturelle in Paris, yielded a male and a female of K. angulicornis from an unrecorded locality in the Central African Republic.


1970 ◽  
Vol 60 (2) ◽  
pp. 237-251 ◽  
Author(s):  
D. P. Annecke ◽  
H. Patricia Insley

Descriptions are given of five new species of Azotus Howard from the Ethiopian region, including one from Mauritius. These bring the total number of Azotus species known from this region to eight. Two described species, A. capensis Howard and A. elegantulus Silvestri, are annotated and figured, and a key to the species is given. The related genus, Ablerus Howard, is recorded from Africa for the first time on the basis of a new species from the eastern Cape Province, and a new East African species of Physcus Howard, is described. A second East African species of the latter genus, one with flightless females, is characterised but not named to species.


ZooKeys ◽  
2020 ◽  
Vol 945 ◽  
pp. 99-127
Author(s):  
Mikhail B. Potapov ◽  
Charlene Janion-Scheepers ◽  
Louis Deharveng

Species of the genera of the Cryptopygus complex in South Africa are morphologically revised. Five new species of the genus Cryptopygus Willem, 1902 s. s. and one new species of the genus Isotominella Delamare Deboutteville, 1948 are described. Cryptopygus abulbussp. nov. and C. bulbussp. nov. have only one chaeta on the anterior side of dens and no chaetae on the anterior side of manubrium, the latter species being characterized by the presence of a bulb at apex of antennae; C. inflatussp. nov. shows a rare combination of eight ocelli on each side of the head with a tridentate mucro; C. longisensillussp. nov. has five long s-chaetae on the fifth abdominal segment; C. postantennalissp. nov. is unique by having a very long and slender postantennal organ with strong inner denticles; Isotominella laterochaetasp. nov. is the second member of the genus and differs from the type species by many more anterior chaetae on the manubrium and the presence of chaetae on ventral side of metathorax. The genera are discussed and a key to all species of the Cryptopygus complex recorded in South Africa is given. The focus is on the Western Cape Province where the complex is the most diverse and sampling more complete than in other provinces of South Africa.


Diversity ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 227 ◽  
Author(s):  
Baptiste Brée ◽  
Andrew J. Helmstetter ◽  
Kévin Bethune ◽  
Jean-Paul Ghogue ◽  
Bonaventure Sonké ◽  
...  

African rainforests (ARFs) are species rich and occur in two main rainforest blocks: West/Central and East Africa. This diversity is suggested to be the result of recent diversification, high extinction rates and multiple vicariance events between west/central and East African forests. We reconstructed the diversification history of two subtribes (Annickieae and Piptostigmateae) from the ecologically dominant and diverse tropical rainforest plant family Annonaceae. Both tribes contain endemic taxa in the rainforests of West/Central and East Africa. Using a dated molecular phylogeny based on 32 nuclear markers, we estimated the timing of the origin of East African species. We then undertook several diversification analyses focusing on Piptostigmateae to infer variation in speciation and extinction rates, and test the impact of extinction events. Speciation in both tribes dated to the Pliocene and Pleistocene. In particular, Piptostigma (13 species) diversified mainly during the Pleistocene, representing one of the few examples of Pleistocene speciation in an African tree genus. Our results also provide evidence of an ARF fragmentation at the mid-Miocene linked to climatic changes across the region. Overall, our results suggest that continental-wide forest fragmentation during the Neogene (23.03–2.58 Myr), and potentially during the Pliocene, led to one or possibly two vicariance events within the ARF clade Piptostigmateae, in line with other studies. Among those tested, the best fitting diversification model was the one with an exponential speciation rate and no extinction. We did not detect any evidence of mass extinction events. This study gives weight to the idea that the ARF might not have been so negatively impacted by extinction during the Neogene, and that speciation mainly took place during the Pliocene and Pleistocene.


Sign in / Sign up

Export Citation Format

Share Document