查看更多>>摘要：Mathesius liaoningensis, a new genus and species of Cleroidea, probably relative of clerid or thaneroclerid branches of the superfamily, is described from the Lower Cretaceous; it belongs among the oldest and the best preserved cleroid fossils that have been known so far. The unique specimen was found in Yixian Formation (ca. 125 Ma) near Huangbanjigou Village, Beipiao City, Liaoning Province, NE China and belongs to the famous Chinese Jehol Biota. A classification of Mathesius liaoningensis gen. etsp. nov. within Cleroidea is based on cucujiform aedeagus with distinct medial apodeme (strut) and probably paired struts of the phallobase, pentamerous meso- and metatarsi, narrowly separated pro- and mesocoxae, metacoxae extending laterally to meet elytra. A possible relationship with the clerid or thaneroclerid branches is based on predacious mandibles, absence of large spines in tibiae, lobes at least in meso- and metatarsomeres 2-3 (probably 1-4), probably six visible abdominal ventrites, and shapeof body. With the exception of the aforementioned features, the well-preserved fossil shows interesting morphological characters which are figured in detail and discussed in the context of morphology of some recent cucujiform families.
PAOLO FONTANAFILIPPO MARIA BUZZETTPRICARDO MARINO-PEREZPATRICIA LUCERO GARCIA-GARCIA...
17页
查看更多>>摘要：Two new species of Pyrgomorphidae of the Mexican endemic genus Ichthyotettix Rehn, 1901, are described: Ichthyotettix stricticaudatus n. sp. (from Oaxaca) and Ichthyotettix inexpectatus n. sp. (from Morelos and Michoacan). The identity of the genus Ichthyotettix, to date considered monotypic, within the tribe Ichthyotettigini is discussed and the type locality of Ichthyotettix mexicanus (Saussure, 1859) is examined and restricted to Veracruz state. The two new species are well characterised both fortheir morphological external characters as well for male genitalia.
查看更多>>摘要：Two Aulacidae, Aulacus uchidai Turrisi & Konishi, sp. n. and Pristaulacus superbus Turrisi & Konishi, sp. n., are described and illustrated from females recently collected in Japan. Aulacus uchidai is recognizable among the other Palaearctic Aulacus by the colour pattern, with the metasoma entirely blackish, the weak and not extensive sculpture on upper frons, weakly rugulose-foveolate, the shape of mesosoma with propodeum declivous, the moderately long and slender apical lobe of hind coxa and the ovipositor length, 0.6-0.9x fore wing length. Pristaulacus superbus is a large species (length: 15.3-17.3 mm) with a long ovipositor (1.5x fore wing length), readily distinguishable from other Palaearctic Pristaulacus by the blue to dull green metallic hueon head and mesosoma, the entirely black metasoma and one tooth-like process on each side of hind surface of propodeum. Including the two new species, the number of Japanese Aulacidae is now nine, two species ofAulacus and seven species of Pristaulacus.Images of both species are freely available at the web site: http:/ /morphbank.net. A revised key for the identification of the Japanese Aulacidae is provided.
WILLIE HENRYSACHIN THAPAPETER H. ADLERSUBRATA KUMAR DEY...
9页
查看更多>>摘要：The polytene chromosomes are mapped for a scarce Himalayan simuliid, Simulium {Montisimulium) ghoomense Datta, from the Darjeeling area of India. This species has three tightly paired polytene chromosomes with a haploid number of 3. Chrornosomes I, II, and III account for 39.6%, 30.3%, and 30. l% of the total complement length, respectively. The centromeres of chromosomes II and III consistently form a putative partial chromocenter. Sex chromosomes are undifferentiated and polymorphisms and sibling species are lacking in a sample of 35 larvae. This is the first chromosomal map for a species in the subgenus Montisimulium in India.
查看更多>>摘要：The larva of Progomphus lambertoi is described and illustrated; it belongs to the obscurus'-group of Progomphus. It appears closely related to P. belyshevi Belle and P. borealis McLachlan based on stature and size of abdominal dorsal protuberances butis easily separated from these species by abdominal color pattern. At present, larvae of nine of the 12 Progomphus species inhabiting Mexico have been described: P. borealis McLachlan (Kennedy 1917), P. clendoni Calvert, P. longistigma Ris, and P. zonatus Hagen [supposition] (Need-ham 1941), P. pygmaeus Selys (Limongi 1983), P. anomalus Belle, P. belyshevi Belle, P. mexicanus Belle [supposition], and P. risi Williamson (Belle 1991). Belle (1991) provided a key to the ultimate stadium larvae of Progomphus for Central America. Here we describe the larva of P. lambertoi Novelo-Gutierrez based on reared material.
查看更多>>摘要：The oviparous female and male of the rare aphid, Periphyllus singeri (Borner), are described and illustrated for the first time. Notes on distribution and host plants are presented. Keys are provided to known oviparae and males of European species ofPeriphyllus. The genus Periphyllus van der Hoeven belongs to the subfamily Chaitophorinae and consists of approximately 50 monoecious and holocyclic species associated with Acer spp. (maples), or exceptionally with Koelreuteria spp. or Aesculus spp. (Blackman & Eastop, 1994). In Europe 14 species have been recorded: P. acericola (Walker), P. aceris (Linnaeus), P. bulgaricus Tashev, P. californiensis (Shinji), P. coracinus (Koch), P. hirticornis (Walker), P. lyropictus (Kessler), P. minutus Shaposhnikov,P. obscurus Mamontova, P. rhenanus (Borner), P. singeri (Borner), P. steveni Mamontova-Solukha, P. testudinaceus (Fernie), and P. venetianus Hille Ris Lambers. Among these species, P. singeri is regarded as extremely rare and sporadic in occurrence. Thelack of records is interesting, because apterous viviparous females are rather large (2.40-3.40 mm long), reddish-brown and are monophagous on sycamore trees, A. pseudoplatanus. The life cycle of this species is without aestivating dimorphs (Szelegiewicz 1985).
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