Brigitte Frérot Pengarang

Ecnomu s of Madagascar, species without modified spur (Trichoptera: Ecnomidae) Fr ançois-Mar ie Gibon* CBGP, IRD, CIRAD, INRA, Montpellier SupAgro, University of Montpellier, Montpellier, France ABSTRACT Summary. The 11 Malagasy species of the genus Ecnomus McLachlan, 1864 that do not belong to the psychomyiellodes species group are studied. One of them (Ecnomus salgiel Malicky, 2015) was recently described from Nosy Be Island. Ten are new and described: Ecnomus felix n. sp., E. dobignyi n. sp., E. matsaboryi n. sp., E. granjoni n. sp., E. commersoni n. sp., E. menavavae n. sp., E. ikopaensis n. sp., E. rubermortis n. sp., E. evidens n. sp., and E. tendroensis n. sp. All are endemic to Madagascar. Their distributions on the island are briefly described according to ecological data. Keywords: Caddisflies; Psychomyioidea; new species; biogeography; systematics; taxonomy; morphology First record of an extant and new species of the genus Serromyia Meigen from India (Diptera: Ceratopogonidae) Po ulami Saha & Niladr i Hazra* Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, 713104, India Summary. A new species of the genus Serromyia Meigen is described and illustrated. This is the first record and description of an extant species of this genus in India. Identification keys to the adult males and females of Serromyia from the Oriental region are also provided. Keywords: taxonomy; morphology; new species; West Bengal First report of wing dimor phism in the genus Orthomus (Coleoptera: Carabidae) Dani el Su árez *a, David Hernández-Teixidora,b & Pedro Oromía,b aDepartamento de Biología Animal, Edafología y Geología. Facultad de Ciencias, Universidad de La Laguna. La Laguna 38206, Spain; bGrupo de Investigaciones Entomológicas de Tenerife (GIET). C/San Eulogio, 15, 1°. 38108 La Laguna, Spain Summary. Wing polymorphism has been reported for several carabid beetles. Traditionally, a great number of ecological and evolutionary studies have focused on this peculiarity, which has implications on dispersal power. Research based on Orthomus berytensis specimens from two sampling areas of Tenerife (Canary Islands, Spain) has shown that this species exhibits a wing dimorphism, instead of being brachypterous. This makes O. berytensis the first Orthomus wing dimorphic species to date. Statistical differences in macropterous percentage between both sexes and localities were found. Also, a sexual dimorphism in elytra length and width was found, both being higher in females. Keywords: Canary Islands; dispersion; sexual dimorphism; wing dimorphism Niche partitioning at emergence of two sympatric top-predator dragonfl ies, Anax imperator and A. parthe nope (Odonata: Aeshnidae) Nedj wa Bou cennaa, Amin Kahalerrasa, Nabila Boukhemza-Zemmouria, Moussa Houhamdib & Rassim Khelifa*c aDepartment of Biology, Faculty of Biological and Agricultural Sciences, University of Tizi Ouzou, Tizi Ouzou 15000, Algeria; bDepartment of Nature and Life Sciences, Faculty of Nature and Life Sciences and Earth and Universe Sciences, University of 8 May 1945, Guelma 24000, Algeria; cDepartment of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, Zurich CH-8057, Switzerland Summary. In natural communities, closely related species are phenotypically similar but usually spatially and/or temporally isolated. In odonates, interspecific competition occurs not only at the larval or adult stage but also during emergence. We investigated the emergence of two sympatric Anax species, focusing on the temporal pattern, vertical stratification, and body size trend over time. Anax imperator started to emerge two weeks earlier than A. parthenope but most of the emergence season overlapped. Both species showed an asynchronous emergence and the median emergence date was 10.3 days earlier in A. imperator. Sex ratio at emergence was not significantly different from 1:1. Body size of both species increased significantly over time, which contrasts many previous studies. The height of exuvia fixation was not significantly different between species but the larger species A. parthenope selected longer supports. Keywords: Competition; congenerics; exuvia; site selection; North Africa Occur rence of hypogea n trechine beetles in Hanzhon g Tiankeng Cluster, southwes tern Shaanxi, Ch ina (Coleo ptera: Carabidae: Trechinae) Ming yi Tian*, Sunbin Huang & Dianmei Wang Department of Entomology, College of Agriculture, South China Agricultural University, No. 483, Wushan Road, Guangzhou, Guangdong 510640, PR China Summary. Qianaphaenops (Tiankengius) xigouicus Tian & Huang, n. subgen., n. sp. is described from a limestone cave in the Hanzhong Tiankeng Cluster, southwestern Shaanxi Province in the western part of Daba Shan Mountains, northern China. Tiankengius n. subgen. is related to Qianaphaenops (s. str.) Uéno, 2000 (a lineage of Guizhaphaenops Complex which ranges in northeastern Guizhou Province) instead of the genera Boreaphaenops Uéno, 2002 Yanzaphaenops Uéno, 2010 which are known from Shennongjia (eastern range of Daba Shan Mountains). However, Tiankengius is markedly distinct by several important features from Qianaphaenops. This is the first report of a troglobitic trechine beetle from Shaanxi Province, northern China. Keywords: taxonomy; ground beetle; semi-aphaenopsian; new subgenus; new species Two new species of Larinus Dejean from North Africa (Coleoptera: Curculionidae), with a key to the striped Larinus (s.str.) Lev ent Gültekina & Hélène Perrinb* aFaculty of Agriculture, Department of Plant Protection, Atatürk University, 25240 Erzurum, Turkey; bMuséum national d’Histoire naturelle, Département Systématique et Évolution, UMR 7205, MNHN-CNRS, CP 50 (Entomologie), 57 rue Cuvier, F – 75231 Paris cedex 05, France Summary. Two new sibling species, Larinus synthesys n. sp. from Algeria, and Larinus boroveci n. sp. from Algeria and Morocco, are described. Both species are tentatively assigned to the subgenus Larinus based on resemblance to species having longitudinal stripes on the elytra and rostrum. L. synthesys n. sp. is the smallest species in Larinus (s. str.) and is closely related to L. boroveci n. sp. The lectotype of Larinus cardopatii Lucas, 1847 is designated and redescribed. An illustrated key to the striped Larinus (s. str.) is given. Keywords: Taxonomy; morphology; weevils; Palaearctic region What is the epipleurite? A contribution to the subcoxal theory as applied to the insect abdomen Thi erry Deuv e* Muséum national d’Histoire naturelle, ISYEB, UMR7205, MNHN, CNRS, EPHE, UPMC, Paris-Sorbonne, CP 50, Entomologie, 57 rue Cuvier, F – 75231, Paris cedex 05, France Summary. The epipleurites were originally described by Hopkins in 1909 on the imago and larva of a beetle. Then this term was widely used in insect morphology, mainly for larvae, to designate certain sclerites of the pleural region. They have recently been interpreted as tergopleural (i.e. pleural but not strictly appendicular) by Deuve in 2001, but a study of embryonic development by Kobayashi et al. in 2013 has shown that they are instead eupleural (i.e. appendicular) and correspond to a dorsal part of the subcoxa. Their presence in the abdominal segments of insects illustrates the fundamental importance of the subcoxa in segmental structure, with a function of anchoring and supporting the appendage when the latter is present. However, the epipleurites are normally separated and functionally dissociated from the coxosternum, which integrates the ventral component of the subcoxa. In females, the epipleurite of segment IX of the abdomen corresponds to the gonangulum, as already pointed out by Deuve in 1994 and 2001, and it is involved in gonopod articulation. At segments VIII and IX of both males and females of holometabolans, the formation process of the genital ducts leads to an internalisation of the whole subcoxosternum (i.e. the coxosternum with the exception of the coxal and telopodal territories), and it is the two flanking epipleurites that ventrally close the abdomen in relation to the rearward displacement of the gonopore. This model may be generalised, in its broad lines, to a large part of the hemimetabolans. The body plan of the insect abdomen underlines the morphological and functional importance of the subcoxa in its fundamental structure, but the study of the Hexapoda in general also indicates the presence of a more proximal segment, the precoxa, which would belong to the groundplan but is more cryptic because it is often closely associated with the subcoxa and/or the paranotal lobe. Its , which is sometimes on the ventral flank of the paranotal lobe, is in line with the hypothesis of a dual origin of the pterygote wing. Keywords: Arthropoda; Hexapoda; Insecta; morphology; morphogenesis; segment; limb; pleurite; sternite; subcoxa; precoxa; ectodermal genitalia; wings