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The first myrmecophilous fl ea beetle genus (Myrmeconycha Konstantinov and Tishechkin, new genus) with four new species (M. erwini Konstantinov and Tishechkin, new species – Ecuador, M. gordoni Konstantinov and Tishechkin, new species – Brazil, M. pakaluki Konstantinov and Tishechkin, new species – Panama, and M. pheidole Konstantinov and Tishechkin, new species – Costa Rica) is described and illustrated. It is compared with fl ea beetles of the subtribe Disonychina (Coleoptera: Chrysomelidae: Galerucinae: Alticini) and may be easily differentiated based on the external and internal features, which include the waxy surface of the head and pronotum, reticulated surface of the pronotum, and four longitudinal ridges on each elytron.
New data on Odonata of the Guadalcanal Island, Solomon Islands are provided following a recently completed Rapid Biodiversity Assessment of the Tetena Haiaja ridge. Two new species, Lieftinckia ulunorum and Procordulia valevahalo are described.
The first is a new member of the Solomon Islands endemic genus while the second is a new genus for the country and the second validated species from the Corduliidae family known from this Pacific archipelago. As L. ulunorum is found to be very closely related to formerly known L. lairdi Lieftinck, 1963, which was also collected during the field trip, both are described in detail based on mature adults and teneral specimens. Comparison with L. salomonis Kimmins, 1957 (investigated only from figures published in the original species description) and Salomoncnemis gerdae Lieftinck, 1987 (also sampled during this study) were provided as well.
Additional morphological data is given on the following species: Teinobasis bradleyi Kimmins, 1957, female is illustrated here for the first time; Anax sp. cf. gibbosulus, second record of the genus for the country and Gynacantha amphora Marinov & Theischinger, 2012, originally described by a single male, here the description of the female is provided.
All other species collected during the field trip will be published separately in the final expedition report.
Six new species of Platypalpus Macquart, 1827 are described from tropical forest at Yangambi (Democratic Republic of the Congo): Platypalpus bolikoi sp. nov., P. ikoso sp. nov., P. lokonda sp. nov., P. manjano sp. nov., P. saffradi sp. nov. and P. yangambensis sp. nov. All species are photographed and, except for P. saffradi sp. nov. known only from females, male terminalia are illustrated for all. A key is provided for the six species of DR Congo. COI barcodes are available for all species at GenBank.
Twenty new species of the millipede genus Chaleponcus Attems, 1914, are described from the Udzungwa Mountains: C. netus sp. nov., C. quasimodo sp. nov., C. malleolus sp. nov., C. scopus sp. nov., C. nikolajscharffi sp. nov., C. mwanihanensis sp. nov., C. basiliscus sp. nov., C. krai sp. nov., C. nectarinia sp. nov., C. circumvallatus sp. nov., C. ibis sp. nov., C. vandenspiegeli sp. nov., C. vilici sp. nov., C. teres sp. nov., C. hamerae sp. nov., C. termini sp. nov., C. gracilior sp. nov., C. mwabvui sp. nov., C. howelli sp. nov. and C. tintin sp. nov. Together with C. dabagaensis Kraus, 1958, they constitute the Chaleponcus dabagaensis-group, well characterized by apparently apomorphic gonopodal characters, presumably monophyletic, and the first example of a major radiation within the Udzungwas. All species are restricted to altitudes >1390 m, all but one were found in only one, rarely two forest reserves, and the vast majority of specimens were collected in montane forest. Chaleponcus gracilior sp. nov. was collected in four forest reserves, often in secondary habitats where other species were only exceptionally found. Co-occurrence of multiple species, inter-specific differences in body size and unusual tarsal setation of a few species tentatively suggest adaptive radiation.
The endophallic structure of the genus Laius is studied and discussed based on the examination of 19 species from Asia to the Indian Ocean. The structure contains two primary sclerites (named gonoporal piece and ligula), a secondary sclerite on the basal part of the gonoporal piece (named additional sclerite) in some species, and a membranous basal area closely covered with many spines (named spinous area). Five species groups are recognized based on the morphology of the endophallic sclerites. The sympatric species have different body sizes and quite distinguishable endophallic sclerites (= different species group), while the allopatric species have overlapping body sizes and similar endophallic sclerites (= same species group). Three new species are described and six previously known species are redescribed with endophallic sclerites, and the descriptions of endophallic sclerites of the remaining ten species are added. The larva of Laius rodriguesensis sp. nov. is also described. The genus
Nossibeus Evers, 1994 is synonymised with Laius Guérin-Méneville, 1830.
The South African endemic bees of the "euryglossiform" species of the genus Scrapter Lepeletier & Serville, 1828 are revised and illustrated. The species-group is defined for the first time and comprises 20 species, 16 of which are described here as new: Scrapter exiguus sp. nov. ♀, ♂, S. gessorum sp. nov. ♀, S. inexpectatus sp. nov. ♀, S. luteistigma sp. nov. ♀, ♂, S. minutissimus sp. nov. ♂, S. minutuloides sp. nov. ♀, S. minutus sp. nov. ♀, S. nanus sp. nov. ♀, ♂, S. nigerrimus sp. nov. ♀, S. nigritarsis sp. nov. ♀, S. papkuilsi sp. nov. ♀, ♂, S. punctatus sp. nov. ♀, ♂, S. pygmaeus sp. nov. ♀, S. roggeveldi sp. nov. ♀, ♂, S. spinipes sp. nov. ♀, ♂ and S. ulrikae sp. nov. ♀, ♂. For S. acanthophorus Davies, 2005 and S. sittybon Davies, 2005 the female is here described for the first time. A key to all species is provided.
Three new species of Pachygnatha, P. bispiralis sp. nov., P. intermedia sp. nov. and P. ventricosa sp. nov., are described from forest areas in western Burundi. The presence of P. procincta Bosmans & Bosselaers, 1994 in Burundi confirms its very wide distribution spanning most of Africa.
Pachygnatha appears to be an important element of the afromontane spider fauna.
Populations of Stegelleta are described from California, New Zealand and Senegal. An amphimictic population from California is identified as belonging to S. incisa and compared with type specimens from Utah and an amphimictic population from Italy. One population from New Zealand is close to S. incisa but considered to represent a new species, Stegelleta laterocornuta sp. nov. It is particularly characterised by a 379–512 μm long body in females and 365–476 μm in males; cuticle divided into 16 rows of blocks at midbody (excluding lateral field); lateral field with four incisures; three pairs of asymmetrical lips, U-shaped primary axils without guarding processes, each lip asymmetrically rectangular with a smooth margin, only lateral lips have slender acute tines; three labial probolae, bifurcated at half of their length; vulva without flap; spermatheca 17–31 μm long; postuterine sac 7–24 μm long; spicules 21.5–23.5 μm long. Other specimens from New Zealand are identified as belonging to S. tuarua. A parthenogenetic population from Senegal is identified as belonging to S. ophioglossa and compared with type specimens from Mongolia and records of several other populations of S. ophioglossa. The generic diagnosis is emended and a key to the species of Stegelleta is provided.
Two new species of the mexicanus group of Vaejovis C.L. Koch are described from the Madrean pine-oak forests of the Sierra Madre Occidental in the state of Durango, Mexico. These species, Vaejovis sierrae sp. nov. and Vaejovis mcwesti sp. nov., are distinguished from each other and the only other species of the mexicanus group known from this mountain range, Vaejovis montanus Graham and Bryson, by morphometrics, carinal development of the pedipalps, granulation of the metasoma, and body size. A key to the species of the mexicanus group from
the Sierra Madre Occidental is provided.