Further new species within the freshwater amphipod genus Paramelita (Crangonyctoidea: Paramelitidae) from South Africa

Four new species within the crangonyctoid amphipod genus Paramelita are described from material collected from small streams in the southwestern Cape, South Africa. Two of the species are large, with robust second antennae which exceed the first in length, especially in adult males. The third species is recognized by its slender pereopods and its densely setose second antennae, and the fourth by its small size and relatively short, slender, unmodified second antennae. All of these species have an unmodified pereopod 3, and lack teeth, spines, ridges or lobes on antenna 2, features common to many of the known Paramelita species. Morphological similarities between the four new species and 19 previously known species of Paramelita are discussed.     

Two new species of the family Photidae (Amphipoda: Corophiidea: Photoidea) from Brazilian waters,with description of Rocasphotis gen. nov.

A new species, Photis sarae sp. nov., is herein described from Guanabara Bay, Rio de Janeiro. The new species is similar to the Hawaiian species, Photis hawaiensis Barnard, 1955, and an undescribed species, Photis sp. F (LeCroy 2000 LeCroy, S.E. An illustrated identification guide to the nearshore marine and estuarine Gammaridean Amphipoda of Florida. Volume 1. Families Gammaridae, Hadziidae, Isaeidae, Melitidae and Oedicerotidae. Florida Department of Environmental Protection, Tallahassee, Annual Report, Contract No. WM724, 195. 2000.  [Google Scholar]), from Biscayne Bay, Florida. Photis sarae sp. nov. can be distinguished from both species in having gnathopod 2 basis with two long setae on posterior margin, palm with only one spine (excluding palmar corner), pereopod 3 anterior margin of merus with long plumose and simple setae, and dactyli of pereopods 5–7 with accessory spine and telson trapezoidal with distal margin concave. Also, Rocasphotis gen. nov. is described based on material collected from Atol das Rocas, which is closely related to the genus Photis and also corresponds to a new species. Rocasphotis gen. nov. mainly differs from Photis in having antenna 1 shorter than antenna 2, peduncular article 1 longer than article 3, accessory flagellum absent, coxae 1–4 with sparse slender setae; lateral cephalic lobe weakly extended and acute distally; eyes large, poorly developed, composed of sparse ommatidia, and partly enclosed in the lobe. A key for all genera of the family Photidae is given.     

非奇异H-矩阵的一组新判据

给出了判定非奇异H-矩阵的一组新条件,改进了近期在该领域所取得的主要结果,并给出相应数值例子说明结果的有效性。     

Species status of two colour morphs of Eupelmus vesicularis (Hymenoptera: Eupelmidae) as revealed by allozyme electrophoresis,morphometric and host preference data

Eupelmus vesicularis (Retzius) is considered to be a widespread and polyphagous parasitoid recorded from more than 200 hosts. The aim of this study was to determine whether two colour forms of the putative species represent two different morphs of a single species or a pair of cryptic species. Three different methods – morphometric analysis, allozyme electrophoresis and evaluation of host preferences – were used to investigate the existence of two cryptic species. Bivariate and multivariate analyses clearly indicate two species that are also distinguishable electrophoretically at the Idh-2, G6pdh, Me, Pgm and Xdh loci. The evaluation of host preferences indicates some overlap in host range between the two species.     

Habitat characterization and potential distribution of Tylototriton vietnamensis in northern Vietnam

The habitat preferences of the endemic Vietnam Crocodile Newt, Tylototriton vietnamensis were investigated on two scales: (1) at Yen Tu Nature Reserve, Bac Giang Province, Vietnam, while compiling information about pond occupancy and developing a qualitative comparison among breeding sites and (2) by developing a Species Distribution Model based on climate and land cover data identifying further suitable habitats in northern Vietnam. A factor analysis followed by a multiple linear regression showed 94% support for our occupancy ranking model. Our results suggest that T. vietnamensis preferentially inhabits small pools with long hydroperiod and pH above 4.3. Suitable areas for the species have higher incidence in northern regions, where undisturbed vegetation and temperature-related variables seem to make greater contributions. Additionally, these potentially suitable areas are strongly fragmented and only a few are under IUCN protection, increasing their vulnerability towards further degradation.     

小气候对紫金山南北坡植物群落组成的影响

通过监测紫金山南、北坡海拔约300m处的气温和湿度,发现紫金山南、北坡小气候存在差异,呈现南坡温暖干燥,北坡阴冷潮湿的特征,其中夏季南北坡温差可达2.6℃,相对湿度约相差6%.紫金山南、北坡海拔约300m地带主要植物群落的组成结构表明:南、北坡植物群落中有很多相同的优势种和伴生种,其中苦槠(Castanopsis sclerophylla)、女贞(Ligustrum lucidum)是最重要的常绿成分;落叶成分中,栎属(Quercus)树种和枫香(Liquidamba formosana)占重要地位.但在南坡与北坡观察到的偶见种却有明显不同.综合分析小气候与植物群落物种组成的关系表明:小气候的微弱差异虽然不影响紫金山南、北坡植物群落中的优势成分和伴生成分,但对群落中的偶见种成分却有明显影响,紫金山南坡植物群落中多生长喜暖、耐干燥的偶见种,而北坡的偶见种大多是耐寒、喜湿物种.     

Revision of the subfamily Cardiochilinae Ashmead, 1900 (Hymenoptera: Braconidae) in Egypt,with new records and a new species

In the present study, the subfamily Cardiochilinae (Hymenoptera: Braconidae) is revised. This study is based on specimens deposited in Egyptian repositories. Many of them were collected during Priesner’s trips to Gebel Elba (extreme south-west of Egypt). The subfamily Cardiochilinae is represented in Egypt by 11 species in three genera, Bohayella Belokobylskij, 1987 (one species), Cardiochiles Nees, 1819 (three species) and Schoenlandella Cameron, 1905 (seven species). The cardiochiline species C. pseudofallax Telenga, 1955 and S. deserta (Telenga, 1955) are recorded here as new records in the fauna of Egypt. The females of previously known male C. weidholzi Fischer, 1958, S. acrenulata (Fischer, 1958) and S. obscuriceps (Fischer, 1958) as well as the male of the previously known female S. glabra (Fischer, 1958) are described. Schoenlandella pseudoglabra sp. nov. is also described and illustrated.

www.zoobank.org/urn:lsid:zoobank.org:pub:C134A1AA-81F6-4661-9C7B-12A7CAE08F67     

A new landhopper species of Myanmarorchestia (Crustacea: Amphipoda: Talitridae) from Yunnan,China

A new landhopper talitrid, Myanmarorchestia nunomurai Nakano and Morino, sp. nov., from Yunnan Province, China is described. Since species of Myanmarorchestia were known only from Mt. Victoria of the Arakan Mountains of Myanmar, this is the first record of the genus from China. Myanmarorchestia nunomurai is characterised by its coxal gills on gnathopod 2 to pereopod 6 without filamentous projections while the other congeners from Myanmar possess some/all of the coxal gills with filamentous projections. Additionally, M. nunomurai can be diagnosed by the sexually dimorphic uropod 2, of which the outer ramus bears a robust seta on the midlateral surface and a few rows of small teeth on the middle to distodorsal surface.

http://zoobank.org/urn:lsid:zoobank.org:pub:3C014FFC-F4D6-4F18-8188-33672367ABB1