New species of Mentzelia (Loasaceae) from Grand County, Utah

A new species, Mentzelia (Section Bartonia ) shultziorum , of the Loasaceae (Mentzelioideae) is described. A close relationship with M. multicaulis (Osterh.) Darl. and M. argillosa Darl. is suggested based on the morphology of the flowers, leaves, and seeds.     

Some species of Favognathus Luxton, 1973 (Acari: Actinedida: Cryptognathidae) from Turkey

Two new species of cryptognathid mites are described and illustrated from Turkey. One other species, Favognathus orbiculatus (Livshitz, 1974) is also reported as a new record. A key is provided to the known species of Favognathus     

New species of Astragalus (Leguminosae) from southeastern Utah

Named and described is Astragalus piscator Barneby & Welsh, a species of sect. Argophylli subsect. Missourienses. The species occurs in Grand and San Juan counties, Utah.         

Insects associated with galls of a new species of Eurytomidae (Hymenoptera: Chalcidoidea) on Ephedra nebrodensis in Spain

Galls found on Ephedra nebrodensis in Spain are formed by a species of Eurytoma (Hymenoptera, Chalcidoidea, Eurytomidae) which is described as new. Four other species of Chalcidoidea (two described as new) and one species of Braconidae are parasitoids or inquilines of the eurytomid. An account is given of the biology of the community of insects associated with the gall.     

Relict occurrence of three "American" Scolytidae (Coleoptera) in Asia

The first non-American representatives of the bark beetle genus Pseudopityophthorus , of the subtribe Corthylina (Corthylini), and of the Ips concinnus species group are named. All are apparently relicts of an early faunal exchange with North America. The new taxa include: Gnatharus , new genus, and its type-species Gnatharus tibetensis , new species (Tibet); Xenophthorus , new subgenus, and its type-species Pseudopityophthorus (Xenophthorus) peregrinus , new species (Tibet), and Ips orientalis , new species (Tibet, China). The intercontinental exchange of other taxa in Scolytidae are also mentioned.     

Some Pycnogonida from the Eastern (Hasa) District of Saudi Arabia

Seven pycnogonid species are described from the Arabian (Persian) Gulf coast of Saudi Arabia in its Eastern (Hasa) District. Two new species, Ascorhynchus dietheus and Nymphon enteonum, are fully described, illustrated and compared with similar congeners. Distributions and remarks are given for all seven species. A key is given for the 22 species in one of four discrete groups of the genus Ascorhynchus, including the new species. This group has longitarsal distal leg segments and scapes of one segment only. A parasitic juvenile Ascorhynchus species is described and illustrated, but left unnamed for lack of a presumed adult specimen. It is compared with the few other known parasitic specimens in this genus.     

A review of the genus Scyracepon Tattersall, 1905 (Crustacea: Isopoda: Bopyridae), with description of a new species from China

The parasitic isopod genus Scyracepon Tattersall, 1905 is recorded from China for the first time, and a new species, Scyracepon distincta, is described from the host Jonas distinctus (Brachyura: Corystidae). Females of the new species can be distinguished from those of the other six species of Scyracepon by their subequal mid-dorsal projections on pereomeres 6 and 7 (lacking on other pereomeres) and pleonal segments with medial but not lateral fusion. Males of the new species have the first two pleomeres free, pleomeres 3–5 fused, and bear midventral tubercles on all pereomeres and the first pleomere. This is the first record of any species of Corystidae bearing parasitic isopods. Remarks on, and a key to, the seven known species of Scyracepon are provided.     

New and little known oribatids from Kenya,with descriptions of two new genera (Acari: Oribatida)

A list of newly collected and identified oribatids from Kenya is presented, two of them represent new genera; Sceletoppia gen. nov. (Oppiidae) and Mahnertozetes gen. nov. (Haplozetidae). Twelve species, belonging to the families Steganacaridae, Lohmanniidae, Tetracondylidae, Microzetidae, Zetomotrichidae and Galumnidae are new to science. Taxonomical notes on two other species are given.     

Checklist of the Odonata of Colorado

One hundred and one species of Odonata are recorded for Colorado, including 58 species of Anisoptera (of which 4 are new state records) and 43 Zygoptera (9 new state records). County records are indicated for each. Three major elements are recognized; predominantly eastern species occurring in the plains and mountain valleys east of the Rocky Mountains, Canadian Zone elements occurring principally above 2,440 m (8,000 ft) in the mountains, and Great Basin and western species occurring chiefly west of the mountains. The list is based primarily on the collections at Colorado State University and the University of Colorado, with additional records from the literature and from other collections.     

A new endemic ground beetle species of the genus Tapinopterus Schaum (Pterostichini: Carabidae: Coleoptera) from the Balkan Peninsula,with some notes on its ecology

A new ground beetle species, Tapinopterus (Tapinopterus) macedonicus sp. nov. (from Northern Macedonia, Mount Karad?ica, ?pela Bozguni Cave) is described and diagnosed. Male and female genitalia and other taxonomically important characters are illustrated. A comparison is carried out between the new species and the most closely related taxa. The new species is clearly distinct from its closest congeners and represents an endemic relict inhabiting a limited area in the southern part of the Balkan Peninsula. In addition, its current distribution and some notes on its ecology are also presented.     

The bark and ambrosia beetles of the Cook Island and Niue (Coleoptera: Scolytidae and Platypodidae)

Twenty-two species of Scolytidae (including one new species), and one species of Platypodidae are recorded from the Cook Islands and Niue in the South Pacific, and a key is given to all species. Corrections are made to earlier records from the islands. Xyleborinus perexiguus (Schedl) comb. n. is transferred from Xyleborus. The faunal composition, breeding habits and geographical distribution of the species are discussed and related to those of other islands in the Pacific. Many species have probably been introduced by man. In the absence of a major timber industry, the species are likely to be of minor economic importance.     

Ciliated protozoa from a volcanic crater-lake in Victoria,Australia

We have investigated the ciliated protozoa living in the crater-lake of an extinct volcano in Australia. Our principal objective was to discover if such a habitat— geographically distant and isolated from Europe (the latter having provided most of the diversity on which ciliate taxonomy is based)— could yield species that were unusual, and perhaps new to science. Numerous samples were taken from the superficial layer of lake sediment, and examined fresh in the laboratory. Thereafter, the samples were manipulated to encourage growth of rare and cryptic ciliate species. Eighty-five species of ciliated protozoa were identified. None of these was new, all having been found previously in fresh-or brackish water, sea water, or soil. All, apart from one (Oxytricha salmastra), are already known from Europe. In order to test our ability to discover new ciliate species, we examined a variety of water samples from other lakes, including those known to harbour endemic algae. One new ciliate species (Lembadion curvatum) was discovered in a lake in Western Tasmania. We conclude that the ciliate fauna of Australia is remarkably similar to that in Europe and other parts of the world. This is supported by the example of those ‘endemic’ ciliate species described in the literature which have, in response to additional sampling, been found elsewhere in the world.     

A new species of Forcipomyia (Diptera: Ceratopogonidae) ectoparasitic on butterflies in New Guinea

A new species, Forcipomyia (Trichohelea) papuensis, is described from New Guinea, where it is ectoparasitic on butterflies. The modifications and diagnostic characters of this species are compared with those of the other Australasian Trichohelea.     

Three new Brazilian species of the land planarian Choeradoplana (Platyhelminthes: Tricladida: Geoplaninae), and an emendation of the genus

Three new Brazilian species of the neotropical land planarian genus Choeradoplana (Platyhelminthes: Tricladida: Continenticola: Geoplaninae) are described, making a total of nine species within the genus. All the new species share unique derived characters typical of the genus. Two of the new species exhibit important features representing morphological variations that were previously unknown for the genus: the dorsal cutaneous longitudinal muscle layer, as well as the ventral one, partially sunken into the parenchyma in one species, and the common ovovitelline duct approaching the copulatory apparatus ventrally in the other. As a consequence of these morphological variations, an emendation of the genus is proposed.     

Membraniporoidea,Microporoidea and Cellarioidea (bryozoa,Cheilostomata) collected by Discovery Investigations

Thirty eight species of anascan Cheilostomata are described from the collections of Discovery Investigations, and other British antarctic expeditions. Ten new species are described, including Stomhypselosaria watersi introduced for Cellaria dubia (Busk) sensu Waters (1904). Two new genera are introduced, and Swanomia nom. nov. is proposed for Mawsonia Livingstone 1928, non Woodward 1907.     

West Indian Neoathyreus and their over-water dispersal (Coleoptera: Scarabaeidae: Geotrupinae)

Neoathyreus androsensis n.sp., is described from Andros Is. in the Bahamas and from Cayo Coco, Cuba. The new species and four other previously described species, now known to occur in the West Indies, are briefly described, keyed and figured. One species, Neoathyreus lanei (Martínez) occurs in the Lesser Antilles and also in northern South America. The four other species occurring on either Cuba, the Bahamas, or Hispaniola are closely related to each other and somewhat less so to the Neoathyreus hamifer complex, known from Mexico and Central America. A minimum of two or three over-water dispersals by ancestral forms seem to be necessary to explain the current distributions of at least some of these West Indian species.     

Two new South American species of Acrobelus Stål (Hemiptera: Cicadellidae: Cicadellinae) with a key to the species of the genus

Two new leafhopper species of the Neotropical genus Acrobelus Stål, 1869 are described and illustrated: A. nessimiani sp. nov. from Peru (Amazonas Department) and A. rakitovi sp. nov. from Ecuador (Orellana Province). The two new species, distinguished from the other Acrobelus species by their remarkably long male subgenital plates and by the fusiform macrosetae present on these plates, seem to be closely related. A key to male specimens of the five known species of Acrobelus is provided. Taxonomic notes on the genus are included.     

New bariliin cyprinid fishes from West Africa,with a consideration of their biogeography

Five new species of bariliin cyprinid fishes are described from West Africa. Three belong to the genus Leptocypris and two to Raiamas. One species of each genus is from Guinea (Konkoure river) and from Sierra Leone (Taia and Little Scarcies rivers), the other, a Leptocypris, is from Cameroon (Cross River). A taxon of indeterminate generic identity from Guinea is also described. The phylogenetic relationships of the bariliins are hypothesized and in this light their geographical distribution is compared with that of other cladistically analysed African freshwater fish groups. The significance to West African fish distribution of the Togo-Benin (Dahomey) Gap is discussed.     

Mayfly fauna of New Mexico

An inventory and analysis of the mayfly (Insecta, Ephemeroptera) fauna of New Mexico, based on the published literature and study of extensive materials from diverse collections, indicated the presence of 12 families, 37 genera, and 81 species. Of these, 25 represent new state records: Acentrella turbida, Ameletus falsus, A. sparsatus, Baelis adonis, B. bicaudatus, B. flavistriga, Baetodes deficiens, Caenis latipennis, Callibaetis fluctuans, Cinygmula par, Ephemera simulans, Hexagenia bilineata, Isonychia sicca, Labiobaetis propinquus, Lachlania saskatchewanensis, Leptophlebia bradleyi, Leucrocuta petersi, Neochoroterpes nanita, Paraleptophlebia debilis, P. heteronea, Procloeon conturbatum, Rhithrogena plana, R. robusta, R. vita, and Thraulodes gonzalesi. Baetodes deficiens represents a new USA record. For 37 of the 56 previously reported and confirmed species, 124 new county records are provided. With respect to continental affinities, 34 species are wester, 27 southwestern, 13 widespread, 1 is a southern USA species, and 1 eastern. Of the major drainage systems of the state, the Gila system is the most species rich with 48 species, followed by the Rio Grande (46), Pecos (39), Candadian (28), and San Juan (25). Relationships between drainage systems and between New Mexico and broadly adjoining states are discussed. Lachlania dencyannae , the only endemic species in New Mexico, occurs in the Gila system and is rare and endangered. Certain other species from the Gila system are also noted as being at risk. From other drainages, B. Adonis, Ephemerella mollitia, and L. petersi also are of some concern at the national level. Additional species that are rare in New Mexico and are of concern at least at the state level include Ametropus albrighti, C. fluctuans, Il. bilineata, L. bradleyi, N. nanita, P. conturbatum, and R. hageni .