[Most Recent Entries] [Calendar View]
Monday, July 6th, 2020
| Time | Event | ||||||
| 10:09a | [Entomology • 2020] Rhachiella malawica from Malawi • Another Beauty of the Afrotropics (Neuroptera: Rhachiberothidae)
Abstract A new species and a new genus of Rhachiberothidae, Rhachiella malawica gen. nov., spec. nov., are described from Malawi. The new species is characterized by a flat vertex, a long penisfilum in the male, and by a bifurcate pseudohypocauda in the female. This combination of characters requires the description of a new genus, which is the sister taxon of Mucroberotha Tjeder, 1959. This is the first record of Rhachiberothidae in Malawi. The distributions of all 14 species of Rhachiberothidae so far known are shown in three maps. Keywords: Neuroptera, Neuropterida, Thorny Lacewings, taxonomy, distribution
Genus Rhachiella gen. nov. Rhachiella malawica spec. nov. Etymology: Rhachiella is derived from Rhachiberotha. It has feminine gender; malawica is an adjective derived from the country where the species has been discovered. Ulrike Aspöck, Horst Aspöck, James B. Johnson, Trust Kasambala Donga and Peter Duelli. 2020. Rhachiella malawica gen. nov., spec. nov. from Malawi— Another Beauty of the Afrotropics (Neuroptera: Rhachiberothidae). Zootaxa. 4808(1); 131–140. DOI: 10.11646/zootaxa.4808.1.7 | ||||||
| 11:03a | [Ichthyology • 2020] Systematic Reappraisal of the Anti-equatorial Fish Genus Microcanthus Swainson (Teleostei: Microcanthidae), with Redescription and Resurrection of Microcanthus joyceae Whitley
Abstract The taxonomy and classification of the microcanthid fish genus Microcanthus Swainson has been a subject of contention dating back to the 19th century. Its allopatric, disjunct anti-equatorial distribution across the Indo-West Pacific has resulted in the recognition of several nominal taxa, though these have been widely regarded as synonyms of Microcanthus strigatus (Cuvier). Following the results published in a companion study elsewhere by the authors, the taxonomy of Microcanthus and the validity of these nominal synonyms are herewith revised. Microcanthus strigatus is redescribed on the basis of 66 specimens from East Asia, Hawaii and Western Australia, and M. joyceae is resurrected and redescribed on the basis of 25 specimens from eastern Australia and the southwest Pacific. Microcanthus differs from other microcanthid genera in having the following combination of characters: dorsal-fin rays XI,15–17 (usually XI,16); anal-fin rays III,13–15 (usually III,14); pectoral-fin rays 15–17 (usually 16); scales ctenoid with ctenial bases present; lateral-line scales partially or heavily obscured by adjacent scales; and body pale in preservation with five horizontal dark stripes reaching the posterior edges of dorsal and anal fins, and base of caudal fin. The review is accompanied by a key to the genera of Microcanthidae. Keywords: Pisces, taxonomy, ichthyology, cryptic species, anti-tropical, stripey
Microcanthus Swainson Etymology. The generic epithet Microcanthus is a combination of the Greek “mikros” for small, and “akantha” for thorn, alluding to the minute crenulations on the preopercle (Swainson 1839). Microcanthus strigatus (Cuvier in Cuvier & Valenciennes 1831) Etymology. The specific epithet strigatus is the Latin for strigate, in having transverse bands or streaks of colour.
Microcanthus joyceae Whitley (1931) Etymology. The species is named after Joyce K. Allan, who provided Whitley with illustrations of this species for his original description. To be treated as a noun in the genitive case. While Whitley did not provide a common name in his description, he alluded to its vernacular name, the “Stripey,” commonly used by locals in New South Wales, Australia. Since the use of this name is pervasive throughout the region, we choose to retain it in part as the common name, proposing the usage of “East-Australian Stripey” instead to distinguish M. joyceae from M. strigatus. Yi-Kai Tea and Anthony C. Gill. 2020. Systematic Reappraisal of the Anti-equatorial Fish Genus Microcanthus Swainson (Teleostei: Microcanthidae), with Redescription and Resurrection of Microcanthus joyceae Whitley. Zootaxa. 4802(1); 41–60. DOI: 10.11646/zootaxa.4802.1.3 | ||||||
| 11:12a | [Entomology • 2020] Remarks on the Genus Tachycines Adelung, 1902 (Orthoptera: Rhaphidophoridae: Aemodogryllinae) with Description of Eight New Species from Caves in southern China
Abstract This paper describes eight new cave-dwelling species of the genus Tachycines from Guizhou, Hunan, Guangxi and Sichuan, i.e. Tachycines (Gymnaeta) liboensis sp. nov., Tachycines (Gymnaeta) bifolius sp. nov., Tachycines (Gymnaeta) tuberus sp. nov., Tachycines (Gymnaeta) paradoxus sp. nov., Tachycines (Gymnaeta) umbellus sp. nov., Tachycines (Gymnaeta) nulliscleritus sp. nov., Tachycines (Gymnaeta) taenus sp. nov. and Tachycines (Gymnaeta) latiliconcavus sp. nov. The females of T. (G.) ferecaecus (Gorochov, Rampini & Di Russo, 2006) and T. (G.) proximus (Gorochov, Rampini & Di Russo, 2006) are first recorded. Moreover, we consider T. (G.) aspes (Rampini & Di Russo, 2008) as a valid species instead of a synonym of T. (G.) proximus (Gorochov, Rampini & Di Russo, 2006) according to obviously different reduction of fastigium verticis and eyes, higher number of spines on the hind tibia and the shape of male genitalia. Furthermore, Eutachycines crenatus (Gorochov, Rampini & Di Russo, 2006) should be retransferred to the subgenus Tachycines (Gymnaeta) due to the diagnosis of genus Eutachycines: dorsal sclerite of male genitalia with a protuberance in the upper part. Therefore, it should still belong to the subgenus Tachycines (Gymnaeta). In addition, morphological photographs of the eight new species and five known species are provided, including eyeless species. Keywords: Orthoptera, Rhaphidophoridae, Tachycines, new species, caves, China  Qidi Zhu, Huiming Chen and Fuming Shi. 2020. Remarks on the Genus Tachycines Adelung, 1902 (Orthoptera: Rhaphidophoridae: Aemodogryllinae) with Description of Eight New Species from Caves in southern China. Zootaxa. 4809(1); 71–94. DOI: 10.11646/zootaxa.4809.1.4 |
| << Previous Day |
2020/07/06 [Calendar] |
Next Day >> |