RESUMO

A new species, Brachypsectra cleidecostae Lawrence, Monteith & Reid sp. nov., is described from Australia on the basis of one reared adult female from inland Queensland and larvae from the type locality and two other widely separated semi-arid localities in South Australia and Western Australia. Two of the four larval collections were from under tree bark and one was from ground litter. The species is differentiated on both adult and larval characters. The broader mandible with retention of a retinacular tooth may indicate a sister relationship with species of the genus from other continents.

Assuntos

Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva/anatomia & histologia , Austrália

RESUMO

A new species, Brachypsectra cleidecostae Lawrence, Monteith & Reid sp. nov., is described from Australia on the basis of one reared adult female from inland Queensland and larvae from the type locality and two other widely separated semi-arid localities in South Australia and Western Australia. Two of the four larval collections were from under tree bark and one was from ground litter. The species is differentiated on both adult and larval characters. The broader mandible with retention of a retinacular tooth may indicate a sister relationship with species of the genus from other continents.(AU)

Assuntos

Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva/anatomia & histologia , Austrália

RESUMO

The larva of Lepicerus inaequalis Motschulsky was described by Lawrence et al. (2013) based on several early instars and one late instar collected among wet leaves and debris near Gamboa, Panama. The identification was based on collection of an adult Lepicerus in a similar habitat nearby and a combination of characters found in other myxophagan immatures but not known in other beetle larvae. We accepted this identification with some reservations, but a misinterpretation of one feature in the original description plus an unexpected new source of evidence makes it likely that our identification was incorrect. The one misinterpreted feature in this larva was the retraction of the ventral mouthparts. Reexamining the larvae, it was found that a pair of tendons extending mesally from the hypostomal rods were misinterpreted as maxillary bases. The mouthparts are definitely protracted, which is expected with long hypostomal rods. The new source of evidence is somewhat complicated, as explained below.

Assuntos

Besouros , Animais , Ecossistema , Larva , Panamá

RESUMO

The former family Trachelostenidae is returned to tribal status in Tenebrionidae-Tenebrioninae and reconstituted to include Trachelostenus Solier, 1851 of southern Chile, currently in a separate family Trachelostenidae, Myrmecodema Gebien, 1943 of central Chile, currently in Stenochiinae-Cnodalonini, and Leaus Matthews & Lawrence, 1992 of eastern Australia, currently in Tenebrioninae-Titaenini. The three genera are redescribed in both the adult and larval stages. Three new species: Leaus tropicalis sp.n. L. monteithi sp. n. and L. elusus sp. n. are described. Trachelostenine larval characters are compared with those of related tribes of Tenebrioninae: Titaenini, Heleini, Helopini, Helopinini, Ulomini and Toxicini. The Chilean genus Homocyrtus Dejean is briefly discussed and left incertae sedis in Tenebrionidae. Examination of Lagriola Kirsch (Lagriinae), originally associated with Trachelostenus, leads to the following name changes: Lagriola Kirsch, 1873 = Paratenetus Spinola, 1844, syn. n.; Paratenetus operosus (Kirsch, 1873) (Lagriola), comb. n.; Paratenetus championi, nom. n. for P. denticulatus Champion, 1886 nec P. denticulatus (Kirsch, 1873) (Lagriola) comb. n.

Assuntos

Besouros/classificação , Larva/crescimento & desenvolvimento , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Austrália , Tamanho Corporal , Chile , Besouros/anatomia & histologia , Besouros/crescimento & desenvolvimento , Ecossistema , Feminino , Larva/anatomia & histologia , Larva/classificação , Masculino , Tamanho do Órgão

RESUMO

The world genera of Mycetophagidae are reviewed and four new genera described. Several adult features of Mycetophagidae are discussed, and some newly discovered secondary sexual characters are described and illustrated. A key is given to the adults of all mycetophagid genera. The following new genera and species are proposed: Afrotyphaeola gen. n. (South Africa), A. natalensis sp. n. (South Africa), Neotriphyllus gen. n. (southwestern USA to Central America), Nototriphyllus gen. n. (New Zealand, Madagascar, Chile and Argentina), N. araucania sp. n. (Chile, Argentina), Zeclaviger gen. n. (New Zealand) and Z. explanatus sp. n. (New Zealand). The following synonymies are proposed: Litargus Erichson, 1846 (= Catopius Sharp, 1902) syn. n., Litargus balteatus LeConte, 1856 (= Triphyllus minor Lea, 1895) syn. n., Mycetophagus confusus Horn, 1878 (= Triphyllus perfectus Sharp, 1902) syn. n. The following new combinations are proposed: Litargops intricatus (Blackburn, 1891) (Triphyllus, Litargus) comb. n., L. multiguttatus (Lea, 1895) (Triphyllus, Litargus) comb. n., Litargus irregularis (Sharp) (Catopius) comb. n., Mycetophagus (Paralitargus) didesmus (Say) (Litargus) comb. n., Neotriphyllus confusus (Horn) (Mycetophagus) comb. n. Nototriphyllus aciculatus (Broun, 1880) (Cryptophagus) comb. n., N. adspersus (Broun, 1880) (Cryptophagus) comb. n., N. constans (Broun, 1914) comb. n., N. fuliginosus (Broun, 1880) (Cryptophagus) comb. n., N. hispidellus (Broun, 1880) (Cryptophagus) comb. n., N. integritus (Broun, 1893) comb. n., N. pubescens (Broun, 1909) comb. n., N. madagascariensis (Fairmaire, 1898) (Triphyllus) comb. n., N. punctulatus (Broun, 1880) (Cryptophagus) comb. n., N. rubicundus (Sharp, 1886) (Triphyllus) comb. n., N. serratus (Broun, 1880) (Cryptophagus) comb. n., N. substriatus (Broun, 1880) (Cryptophagus) comb. n. The larva of Nototriphyllus araucania is briefly described and compared with other known myceophagid larvae. The genus Nesolathrus Scott (1922), described in Latridiidae and considered incertae sedis in Mycetophagidae by Lawrence & Newton (1995), is placed in the subfamily Bergininae, following Lawrence & Slipinski (2013). The tribe Typhaeini Thomson (1863), as delimited by Nikitsky (1993), based on the lateral closure of the mesocoxal cavity by the mesoventrite and metaventrite, is considered to be non-monophyletic. Rhipidonyx adustus Reitter (1876), described in Mycetophagidae, is transferred to Tenebrionidae: Alleculinae, based on the description and examination of a specimen presumed to be the type.

Assuntos

Besouros/anatomia & histologia , Besouros/classificação , Animais , Argentina , Feminino , Masculino , Nova Zelândia

RESUMO

Antillipeltis gen. nov. is described based on the following six new extant species and two new fossil species from Hispaniola and Puerto Rico: A. alleni sp. nov. (Dominican Republic, Miocene), A. darlingtoni sp. nov. (Haiti), A. iviei sp. nov. (Dominican Republic, Miocene), A. maculata sp. nov. (Dominican Republic), A. minuta sp. nov. (Dominican Republic), A. nitida sp. nov. (Puerto Rico), A. portoricensis sp. nov. (Puerto Rico), and A. pubescens sp. nov. (Dominican Republic). The genus is placed in Cleroidea, as currently delimited, based on the presence of a distinctive type of aedeagus occurring primarily in this superfamily, plus a combination of features excluding it from other cucujiform superfamilies. Within Cleroidea, the genus is tenatively placed in the family Trogossitidae and subfamily Lophocaterinae, but it differs from all other Trogossitidae in the presence of ventral membranous lobes with adhesive setae on tarsomeres 1-4 and in a combination of 9-segmented antennae, weak 3-segmented antennal club consisting of slightly elongate antenomeres, lack of postcoxal processes on the pronotal hypomera, and unique leg modifications. A key is provided for major groups of Cleroidea and all described genera of Peltinae and Lophocaterinae, with the exception of Rentoniini, based in part on the literature and in part on dissections of adult males. Antillipeltis is one of three endemic West Indian genera of Coleoptera that is both extant and known from Dominican amber.

Assuntos

Besouros/classificação , Animais , Besouros/anatomia & histologia , Feminino , Masculino , Índias Ocidentais

RESUMO

We designate lectotypes and propose nomenclatural changes in Xylographus Mellié (Coleoptera, Ciidae) based on type specimens deposited in the Museum of Comparative Zoology (USA), Museum für Naturkunde Berlin (Germany), the Natural History Museum (UK), Muséum d'Histoire Naturelle de la Ville de Genève (Switzerland), Muséum National d'Histoire Naturelle (France), Naturhistoriska Riksmuseet (Sweden) and Naturhistorisches Museum Wien (Austria). We designate lectotypes for the following species: Cis fultoni Broun, 1886, Xylographus anthracinus Mellié, 1849, X. bicolor Pic, 1916, X. brasiliensis Pic, 1916, X. ceylonicus Ancey, 1876, X. contractus Mellié, 1849, X. corpulentus Mellié, 1849, X. dentatus Pic, 1922, X. gibbus Mellié, 1849, X. hypocritus Mellié, 1849, X. javanus Pic, 1937, X. lemoulti Pic, 1916, X. longicollis Pic, 1922, X. madagascariensis Mellié, 1849, X. nitidissimus Pic, 1916, X. perforatus Gerstaecker, 1871, X. porcus Gorham, 1886, X. punctatus Mellié, 1849, X. ritsemai Pic, 1921, X. rufescens Pic, 1921, X. rufipennis Pic, 1934, X. rufipes Pic, 1930, X. seychellensis Scott, 1926, X. subopacus Pic, 1929, X. subsinuatus Pic, 1916, X. suillus Gorham, 1886, X. testaceitarsis Pic, 1916 and X. tomicoides Reitter, 1902. We propose the following syn. n. (senior synonym listed first): X. anthracinus = X. testaceitarsis, X. brasiliensis = X. lucasi Lopes-Andrade & Zacaro, X. corpulentus = X. lemoulti and X. richardi Mellié, X. madagascariensis = X. eichelbaumi Reitter, X. rufipennis, X. seychellensis Scott and X. tarsalis Fåhraeus, X. nitidissimus = X. longicollis, X. subsinuatus = X. rufescens. We exclude three species from Xylographus: Cis renominatus, nom. n. (for X. dentatus Pic, 1922, not C. dentatus Mellié, 1849), Paratrichapus fultoni (Broun, 1886), comb. n. and P. javanus (Pic, 1937), comb. n.

RESUMO

A larva is described which is presumed to be that of Lepicerus inaequalis Motschulsky based on several probable first instars and one later instar collected a few miles from and in a similar habitat to adult specimens of this species. The association is additionally based on several features also occurring in other known myxophagan larvae. A key is provided comparing these larvae with those of the other three families of Myxophaga.

Assuntos

Besouros/anatomia & histologia , Besouros/classificação , Animais , Besouros/crescimento & desenvolvimento , Ecossistema , Larva/anatomia & histologia , Larva/classificação , Larva/crescimento & desenvolvimento , Panamá

RESUMO

A new genus of Rentoniini, Globorentonium gen. n., is described including three new species: G globulum sp. n. (type species) from Tasmania, Victoria, ACT and southern New South Wales; G lescheni sp. n. from northern New South Wales and G plaumanni sp. n. from southern Brazil. The new genus is compared with other known genera of Rentoniinae, and a key to world genera is provided.

Assuntos

Besouros/classificação , Animais , Austrália , Biodiversidade , Brasil , Besouros/ultraestrutura , Feminino , Masculino

RESUMO

Three new species of Falsocis Pic are described: Falsocis aquiloniussp. n. from Panamá, Costa Rica and Colombia, Falsocis egregiussp. n. from a single locality in northern Brazil and Falsocis occultussp. n. from two localities in southeastern and southern Brazil. New records, comparative notes and an identification key for male and female specimens of Falsocis species are also provided.