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This paper presents an improved diagnosis and definition of the genus Stenaelurillus Simon, 1886, with new taxonomic and faunistic data for 23 species. The genera Microheros Wesołowska & Cumming, 1999 and Mashonarus Wesołowska & Cumming, 2002 are synonymized with Stenaelurillus. Six new species are described: Stenaelurillus bandama sp. nov. (♂♀, from Côte d’Ivoire), S. belihuloya sp. nov. (♂, from Sri Lanka), S. jocquei sp. nov. (♂♀, from Cameroon), S. pseudoguttatus sp. nov. (♂, from Namibia), S. senegalensis sp. nov. (♂♀, from Senegal), and Stenaelurillus siyamae sp. nov. (♀, from Sudan). Lectotypes are designated for two species: S. albopunctatus Caporiacco, 1949 (♂) from Kenya and S. werneri Simon, 1906 (♀) from South Sudan. Six new combinations are proposed: Aelurillus ambiguus (Denis, 1966), comb. nov. (ex Stenaelurillus); Evarcha werneri (Simon, 1906), comb. nov. (ex Stenaelurillus); Phlegra davidi (Caleb, Mungkung & Mathai, 2015), comb. nov. (ex Mashonarus); Stenaelurillus brandbergensis (Wesołowska, 2006), comb. nov. (ex Mashonarus); Stenaelurillus guttatus (Wesołowska & Cumming, 2002), comb. nov. (ex Mashonarus); and S. termitophagus (Wesołowska & Cumming, 1999), comb. nov. (ex Microheros). Two species names are synonymized: Evarcha elegans Wesołowska & Russell-Smith, 2000 with E. werneri comb. nov.; and Aelurillus sahariensis Berland & Millot, 1941 with Stenaelurillus nigricaudus Simon
The Siriella brevicaudata species group from the West Indo-Pacific, defined and designated by Murano & Fukuoka (2008), previously contained five nominal species. In this study we describe five new species in the brevicaudata group: S. bassi sp. nov. from the Bass Strait, southern Australia, S. occulta sp. nov. from the Arabian Gulf, S. muranoi sp. nov. from the coast of Northern Territory, Australia, S. tabaniocula sp. nov. from Ningaloo Reef of Western Australia and Lodestone Reef off Queensland, and S. talbotae sp. nov. from Lizard Island, Queensland, Australia. Furthermore, Siriella hanseni W.M. Tattersall, 1922 from India and S. vincenti W.M. Tattersall, 1927 from South Australia are redescribed based on re-examination of their type material. A re-examination of specimens subsequently attributed to these two species from other geographical regions showed that these were misidentifications, partly representing three of the new species described herein. Siriella gibbosa (Ledoyer, 1970), which was previously synonymized with S. brevicaudata Paulson, 1875 by Bačescu, is revalidated and included within the brevicaudata group. Siriella lacertilis Talbot, 2009, from Lizard Island, is placed within the brevicaudata group. Diagnostic features for all the members of the group and the group itself are updated. As a result of the present study, the brevicaudata group now comprises 12 valid species.
Homollea Arènes (Rubiaceae, subfamily Ixoroideae, tribe Pavetteae) is a genus of shrubs and small trees endemic to western and northern Madagascar. The genus comprises five species occurring in dry deciduous forest, often in limestone areas. The five species are narrow endemics and their conservation status is either Endangered (4 species) or Critically Endangered (1 species). Homollea is characterized by few-flowered, pseudo-axillary, pedunculate inflorescences, well-developed calyces with the lobes much longer than the tube, laterally flattened seeds with a shallow, elongated to linear hilum and entire endosperm, ovules arising from the upper margin of the placenta, and, pollen grains with supratectal elements in the shape of microgemmae. Until now, three species were known and their descriptions are amended. Two further species, H. furtiva De Block sp. nov. and H. septentrionalis De Block sp. nov., are described as new for science. The five species are dealt with in detail: descriptions, distribution maps, conservation assessments, illustrations, lists of exsiccatae and an identification key are given.
A new monotypic genus of flatid planthoppers (Hemiptera: Fulgoromorpha: Flatidae), Medleria gen. nov., is described for Medleria caudata gen. et sp. nov. (type species) from the island of Socotra (Yemen). Habitus, male and female external and internal genital structures of the new species are illustrated and compared with similar taxa. Medleria caudata gen. et sp. nov. is probably endemic to Socotra where it is known to date from a small area of the Dixam mountain plateau only.
The concept of the jumping spider genus Pochytoides Berland & Millot, 1941 is reviewed, based on the examination of described and undescribed species. Pochytoides is elevated from the subgeneric to the generic rank and a short diagnosis and description of the genus are presented. Redescriptions or descriptions of all species are provided together with a key to the species. Two new combinations are proposed: Pochytoides perezi (Berland & Millot, 1941) comb. nov. and P. poissoni (Berland & Millot, 1941) comb. nov. (both from Pochyta). Pochyta remyi Berland & Millot, 1941 originally placed in the subgenus Pochytoides is excluded; new combination Thiratoscirtus remyi (Berland & Millot, 1941) comb. nov. is proposed for it (but its generic status is uncertain). Six new species are described: Pochytoides monticola sp. nov., P. obstipa sp. nov., P. lamottei sp. nov., P. patellaris sp. nov., P. securis sp. nov. and P. spiniger sp. nov. The genus has a West African distribution.
The Palaearctic species of Ismaridae Thomson, 1858 are reviewed. Thirteen species of Ismaridae are recognized from the Palaearctic. Five species are described as new: Ismarus brevis Kim & Lee sp. nov. from the Russian Far East and South Korea; I. distinctus Kim, Notton & Ødegaard sp. nov. from Norway and the United Kingdom; I. excavatus Kim & Lee sp. nov. from China, Japan and South Korea; I. similis Kim, Notton & Lee sp. nov. from the United Kingdom and I. tripotini Kim & Lee sp. nov. from South Korea. Ismarus apicalis Kolyada & Chemyreva, 2016 is newly recorded from China, France, Japan and South Korea; I. dorsiger (Haliday, 1831) from France, Montenegro, Norway, South Korea and Switzerland; I. flavicornis (Thomson, 1858) from Bulgaria and Norway; I. grandis Alekseev, 1978, I. halidayi Förster, 1850 and I. multiporus Kolyada & Chemyreva from Japan and South Korea; I. rugulosus Förster, 1850 from Austria and I. spinalis Kolyada & Chemyreva, 2016 from China, Japan and South Korea. An identification key to all species found in the Palaearctic region is presented.
Two new species of the family Selachinematidae Cobb, 1915 from an intertidal sandy flat in the East China Sea are described. Both species are distinct rapacious nematodes, preying on other nematodes. Gammanema magnum sp. nov. is characterized by its leaf-like labial setae, large loop-shaped amphideal fovea in the male and small spiral ones in the female, an anterior buccal cavity reinforced by 12 rhabdia, each rhabdion with about six denticles, and two unequally long spicules. Gammanema magnum sp. nov. is a striking species, exhibiting extreme sexual dimorphism in the amphideal fovea, but lacking a gubernaculum or precloacal supplements, all features by which it can be differentiated from congeneric species. Synonchium caudatubatum sp. nov. is characterized by a posterior buccal cavity, with three mandibles each with a large tooth flanked by three smaller teeth on both sides, a transverse oval-shaped multispiral amphideal fovea, and a bluntly rounded tail with a protuberant caudal duct. Synonchium caudatubatum sp. nov. is unique in the genus in having a protuberant caudal duct in the tail end. Furthermore, it differs from its congeners by its mandibles, which have seven teeth each. Synonchium caudatubatum sp. nov. lacks a gubernaculum and a precloacal supplement, both features present in congeners except S. depressum Gerlach, 1954.
A new species complex, the eparmata complex, is established within the subgenus Phortica s. str., based on eight known and five new species, all of which are endemic to the Oriental Region: P. bipartita (Toda & Peng, 1992), P. eparmata (Okada, 1977), P. lanuginosa Chen & Toda, 2007, P. latipenis Chen & Gao, 2005, P. pangi Chen & Wen, 2005, P. setitabula Chen & Gao, 2005, P. unipetala Chen & Wen, 2005 and P. zeta Chen & Toda, 2007; P. jadete sp. nov., P. kava sp. nov., P. mengda sp. nov., P. wongding sp. nov. and P. yena sp. nov. A key to all species of this complex is provided. Barcoding sequences (mitochondrial COI gene) were obtained for 22 specimens of five known and the five abovementioned new species. The intra- and inter-specific pairwise K-2P (Kimura’s two-parameter) distances of COI were determined. Phylogenetic analysis was performed using Bayesian inference based on COI sequences, confirming the monophyletic status of the eparmata complex, which is distinct from the species complexes of magna, omega, variegata and another two ungrouped species.
The Quedius mutilatus group, a very poorly known presumably monophyletic complex of wingless, possibly hypogean species confined to the Tien-Shan Mountains, is characterized as such for the first time. Newly available material clarified the identity of Q. mutilatus Eppelsheim, 1888 and Q. kalabi Smetana, 1995, each hitherto known from a handful of non-conspecific and vaguely georeferenced specimens only. Additional material is reported for Q. equus Smetana, 2014 and bionomics for all these four species of the group are summarized.
Bees of the genus Lasioglossum (Hymenoptera: Halictidae) from Greater Puerto Rico, West Indies
(2018)
The species of Lasioglossum from Greater Puerto Rico are reviewed. Nine species are recognized, including five new species described herein: asioglossum (Dialictus) genaroi sp. nov., L. (D.) dispersum sp. nov., L. (D.) enatum sp. nov., L. (D.) monense sp. nov. and L. (D.) amona sp. nov. The latter two are known only from Mona Island. Keys and images are provided to assist in identification. Details of nesting biology, floral hosts and distribution are provided where available. Three species, L. (D.) parvum (Cresson, 1865), L. (D.) busckiellum (Cockerell, 1915), and L. (D.) mestrei (Baker, 1906) are removed from the list of species for Puerto Rico. Details on their revised distribution are provided. Three new records for Haiti, L. (D.) gundlachii (Baker, 1906), L. (D.) ferrerii (Baker, 1906) and L. (D.) busckiellum are documented. Notes on other species in the Greater Antilles are provided, including the synonymy of Lasioglossum bruesi (Cockerell, 1912) and L. jamaicae (Ellis, 1914) under L. gemmatum (Smith, 1853).