The parasites of the psyllidae—3. Some notes on the biology and host relationships of Parapsyllae-Phagus Adulticolus Robinson (Hymenoptera)

Abstract

Parapsyllaephagus Adulticolus Robinson (CHALCIDIDAE: Encyrtinae) is an endoparasite of the adults of Psylla melanoneura Förster and Psylla subferrigenea Edwards. The life histories and biology of the hosts and parasite are described. Parapsyllaephagus adulticolus has five larval instars, which feed selectively upon the developing internal genitalia of the host at first, and eventually, as the final instar, upon the whole of the abdominal viscera. Pupation within the psyllid is followed by emergence of the adult parasite through the posterior dorsal surface of the abdomen of the host. The effect of these activities upon the migration of the adult psyllid from a winter shelter plant to a summer host plant is discussed and a relationship between the stimulus to migrate and the state of development of the internal genitalia is postulated. Some aspects of the orientation of the parasite larva within the host and the phenomenon of larval reversal are discussed.     

New and little‐known earthworm species from the Ivory Coast (Oligochaeta: Acanthodrilidae: Benhamiinae and Eudrilidae)

In the framework of the international project called “Conservation and Sustainable Management of Below‐Ground Biodiversity”, soil macrofauna collections were carried out in the Centre‐West Ivory Coast. Altogether, 13 earthworm species were recorded, of which four belonged to the family Eudrilidae and nine to the family Acanthodrilidae. From the species collected, two, Dichogaster (Dichogaster) eburnea sp. nov. and Dichogaster (Dichogaster) mamillata sp. nov., proved to be new to science. To accommodate the enigmatic eudrilid earthworm species Scolecillus compositus Omodeo, 1958 Omodeo, P. 1958. Oligochetes. In, La reserve naturelle integrale du Mont Nimba.. Memoire de la Institut Francais Afrique Noire, 53: 9–109.  [Google Scholar], a new genus, Lavellea gen. nov., is proposed.     

Mites of the superfamily raphignathoidea (Acarina: Prostigmata) associated with South African plants

Abstract

Nine new species and one new subspecies of the superfamily Raphignathoidea are described and figured. These are: Fam. Caligonellidae: Neophyllobius natalensis and N. cavumarboris; fam. Stigmaeidae: Ledermülleria neomaculata, L. lineolata, Villersia oudemanis, Mediolata africana and Eupalopsis brevipilus; fam. Raphignathidae: Raphignathus bathursti and Acheles aethiopica; fam. Cryptognathidae: Cryptognathus cucurbita cucurbitella. Apostigmaeus navicella is recorded for the first time from South Africa. Keys to the genera and species associated with plants are given.     

Notes on Polyzoa (Bryozoa) VI. Some setiform heterozooecia

Abstract

The setiform heterozooecia of Crepidacantha longiseta are not avicularia. They may be regarded as simple, symmetrical vibracula, or as a third, distinct type of heterozooecium.

The setiform avicularia of Microporella coronata and Escharina vulgaris are interzooecial, and the avicularian chamber occupies a place in the series of pore-chambers.     

Earthworms (Annelida: Oligochaeta) of Sao Tomé

During a soil zoology expedition to Sao Tomé Island, among other members of the soil fauna, earthworms were collected. During this collecting trip some 170 earthworm specimens belonging to 18 species were gathered of which two, Dichogaster (Diplothecodrilus) coeruleoviridis and Dichogaster (Diplothecodrilus) zicsii, proved to be new to science. In addition, a small sample from the same locality was also examined and Dichogaster (Dichogaster) thomeana Cognetti, 1910 Cognetti de Martiis, L. 1910. Lombrichi raccolti dal Cav. Leonardo Fea nelle Isole del Capo Verde e nel Golfo di Guinea.. Annali del Museo Civico di Storia Naturale di Genova, 4: 79–118.  [Google Scholar] was removed from synonymy of Dichogaster (Dichogaster) greeffi Michaelsen, 1902 Michaelsen, W. 1902. Neue Oligochaeten und neue Fundorte alt‐bekannter.. Mitteilungen aus dem Naturhistorischen Museum in Hamburg, 19: 3–53.  [Google Scholar].     

A preliminary account of the shallow-water echinoderms of Rodrigues,Mauritius, western Indian Ocean

Collections of echinoderms were made from the intertidal, lagoon and reef slopes of Rodrigues over a period of 3 weeks in September to October, 2001. A total of 74 species are reported here, including three species of Crinoidea, 10 species of Asteroidea, 17 species of Ophiuroidea, 15 species of Echinoidea and 29 species of Holothurioidea. These findings include 10 new records for the Mascarene Islands (Réunion, Mauritius and Rodrigues), four species (two in the asteroid genus ‘Asterina’, one in the ophiuroid genus Amphioplus and one species in the holothurioid genus Actinopyga) that remain unnamed due to the need to clarify unresolved taxonomic issues, and one species of crinoid which could not be identified because only the distal parts of four arms were collected. In the dendrochirotid holothurioid family Psolidae, the little-known species Psolus appendiculatus (de Blainville) 1821 Blainville, H. M. de. 1821. Holothuries. Dictionaire des Sciences Naturelles, 21: 310–319.  [Google Scholar], P. boholensis Semper, 1868 and P. complanatus Semper, 1868 are referred to the genus Psolidium Ludwig, 1887. Despite its seniority, P. appendiculatus is treated as a (senior) synonym of the better known and described species Psolidium ornatum (Perrier, 1893). In the dendrochirotid holothurioid family Phyllophoridae, Thyonidiella cherbonnieri nom. nov. is proposed for misidentified specimens of Semperiella tenera (Ludwig, 1875) in the western Indian Ocean, and Semperiella Heding and Panning, 1954 Heding, S. G and Panning, A. 1954. Phyllophoridae. Eine bearbeitung der polytentaculaten dendrochiroten Holothurien des zoologischen Museums in Kopenhagen. Spolia Zoologica Musei Hauniensis, 13: 7–209, 102 figures [Google Scholar] is reduced to the synonymy of Thyonidiella Heding and Panning, 1954 Heding, S. G and Panning, A. 1954. Phyllophoridae. Eine bearbeitung der polytentaculaten dendrochiroten Holothurien des zoologischen Museums in Kopenhagen. Spolia Zoologica Musei Hauniensis, 13: 7–209, 102 figures [Google Scholar]. In the apodid holothurioid family Chiridotidae the species Chiridota eximia Haacke, 1880 Haacke W 1880 Holothurien in K. A. Möbius and F. Richter (eds) Beitrage zur Meeresfauna der Insel Mauritius und des Seychelles (Berlin: Gustav Fischer), pp.?46–48  [Google Scholar] is reduced to the synonymy of C. rigida Semper, 1868.

Given the small size of the area of shallow water around Rodrigues that has been sampled, the relatively small range of marine habitats present and the geographic isolation, this is an impressive diversity. The biogeography of the 69 identified species of Rodrigues is discussed.     

Heteromysoides (Crustacea: Mysidacea: Heteromysini) from a submarine cave on Grand Cayman,the Caribbean Sea: descriptions of a new and a rare species

During a recent biological investigation of submarine caves of Grand Cayman, the Caribbean Sea, two species of Heteromysoides were collected. One species, referred to Heteromysoides spongicola B?cescu, 1968 Baˇcescu, M, 1968. Heteromysini nouveaux des eaux cubaines: trois espèces nouvelles de Heteromysis et Heteromysoides spongicola n. g. n. sp., Revue Roumaine de Biologie, Zoologie 13 (1968), pp. 221–237. [Google Scholar], is known only by the type specimens; therefore, this discovery marks the second record of occurrence and a new habitat record for the species. The other species is considered new and is described as H. stenoura, a 10th species of the genus. The new species closely resembles H. simplex Hanamura and Kase, 2001 Hanamura, Y, and Kase, T, 2001. A new species of Heteromysoides (Mysidacea: Mysidae) from submarine caves of Okinawa, southwestern Japan, with a key to the world species, Crustacean Research 30 (2001), pp. 65–71.[Crossref] , [Google Scholar], known from the submarine caves of Okinawa, north-western Pacific, in the possession of a spiniform process on the eyes and a simple termination to the third thoracic endopod. However, the new species can be readily distinguished from the Pacific congener by a distally narrow telson and a more developed cornea in the eyes.     

Description of four new species of the genus Ampelisca (Amphipoda,Ampeliscidae) from the northeastern and southeastern coasts of Brazil and designation of a neotype for Ampelisca soleata Oliveira, 1954

The present study raises the number of Ampelisca species recorded from the Brazilian coast from 18 to 21. The amphipod fauna of the Brazilian northeast coast is hardly known compared to that of the southeast coast. In this study, we describe three new species from the northeast coast: Ampelisca pseudobicarinata sp. nov., Ampelisca rocasensis sp. nov. and Ampelisca cristianae sp. nov, recorded previously as Ampelisca aff. lobata (Serejo et al. 2000 Serejo, CS, Wakabara, Y and Valério-Berardo, MT. 2000. Taxonomy and geographic distribution of Ampelisca (Amphipoda: Gammaridea) from the Brazilian coast. Polsk Archiw Hydrobiol., 47(3–4): 495–510.  [Google Scholar]). We also report a new record of Ampelisca burkei Barnard and Thomas, 1989 Barnard, JL and Thomas, JD. 1989. A new species, Ampelisca burkei, (Crustacea, Amphipoda) from Florida. Proc Biol Soc Washington., 102(2): 375–384.  [Google Scholar]. From the southeast coast a new species Ampelisca angraensis sp. nov. is described. An obscure species, Ampelisca soleata, which is very similar to Ampelisca brevisimulata, is herein redescribed and a neotype is designated. An updated key with all species of Ampelisca recorded from the Brazilian coast and comments on geographic distribution are given.     

Homoeomorphy in recent Brachiopoda: Abyssothyris and Neorhynchia

Summary

The recent Brachiopod genus Abyssothyris and its type species Terebratula wyvillei Davidson are found to be composite and to consist of two homoeomorphs, a rhynchonellid identified as Neorhynchia strebeli (Dall) and a true terebratulid. The two genera Abyssothyris and Neorhynchia are redefined and a lectotype selected for Abyssothyris wyvillei.     

Two new species of Hudsonimyia Roback, 1979 (Diptera: Chironomidae: Tanypodinae) from Neotropical Region unveiled by morphology and DNA barcoding

Two new species of Hudsonimyia Roback, 1979 Roback, SS. 1979. Hudsonimyia karelena, a new genus and species of Tanypodinae, Pentaneurini. Proc Acad Nat Sci Philadelphia., 131: 1–8. [Web of Science ®] , [Google Scholar] (Diptera: Chironomidae: Tanypodinae) are described and illustrated as male, pupa and larva. The generic diagnosis of pupa is emended and keys to males, pupae and larvae of known species are provided. The different life stages for one of the described species were associated by DNA barcodes.