Baltic Journal of Coleopterology

Insecticidal activity of three plant extracts against adult Ips typograpgus L. under laboratory conditions

2024-01-16T08:39:44+00:00

Three plant extracts - Origanum vulgare subsp. hirtum essential oil (EO), Monarda fistulosa EO, and a hexane fraction of Tanacetum cinerariifolium, wеre evaluated and compared regarding their insecticide activity under laboratory conditions against the adults of the European spruce bark beetle, Ips typographus. The viability of I. typographus was affected with all tested plant extracts. The insecticidal effect varied among the extracts and concentrations used. Generally the mortality of beetles increased with the concentration of extracts and a significant positive correlation between the cumulative mortality and the extract concentration was confirmed by Pearson’s correlation analysis (r = 0.910, p = 0.012 for O. vulgare subsp. hirtum, r = 0.937, p = 0.005 for T. cinerariifolium, r = 0.814, p = 0.048 for M. fistulosa). At the highest extract concentration (10%), the total cumulative mortalities reached 98% for O. vulgare subsp. hirtum and T. cinerariifolium extracts at the end of the bioassay (four days after treatment). The exposure of beetles to M. fistulosa extract decreased the survivability of I. typographus the most (15%) and was followed by T. cinerariifolium (38%) and O. vulgare subsp. hirtum (43%). Log-rank test showed no significant difference in the survival probabilities among the extracts. These are the first tests on the insecticidal effect of plant extracts from Tanacetum cineranifolium and Monarda fistulosa against the European spruce bark beetle Ips typographus.

New additions to the fauna of the longhorn beetles in Ukraine with a new record of rare, poorly known and invasive species

2024-01-16T09:07:43+00:00

The longhorn beetles' fauna of Ukraine has been studied fairly well. Its study began in the second quarter of the 19th century and continues for about 200 years. However, despite this, previously unknown species are regularly found on the territory of Ukraine. First of all, this is due to the very large territory of the country, as well as the

high diversity of biomes. In this paper, I presented the records of three previously unknown species of Cerambycidae for Ukraine: Enoploderes sanguineus Faldermann, 1837, Tetrops peterkai Skořepa, 2020 and Neoclytus acuminatus (Fabricius, 1775). In addition, I provided new data on the findings of 82 species that are rare, poor-known or invasive in Ukraine. This allowed to significantly expand the information and supplement the faunal lists for most physiographic regions of Ukraine. I also found eight climate-sensitive species whose ranges have expanded dramatically northward and into the mountains. The most likely explanation for this may be the current global climate change. For two species, I found an expansion of the ranges from east to west, which, however, can be explained by their poor study in Ukraine. At least three alien invasive species and four steppe species of the longhorn beetles have become naturalized in the most of the territory of Ukraine, where they have never been found before. I also presented new records that confirm the presence of Mediterranean species of Cerambycidae in an isolated refugium in the Crimea. Resultantly, 283 species of the longhorn beetles have been reliably registered on the territory of Ukraine to date.

New and little-known Lepturinae from succinite (Coleoptera Cerambycidae)

2024-01-16T09:26:10+00:00

The article shows the results of the examination of some cerambycids preserved in Baltic and Rovno amber. Vadoniocorymbia n. subgen. is proposed for Paracorymbia antiqua Vitali, 2005, which differs from all congeners of the Recent in the convex under margin of the eyes (concave in the extant species). A female specimen of Pedostrangalia (s. str.) pristina Vitali, 2014 is examined, allowing emending the original description regarding pattern and elytral shape. Pedostrangalia (s. str.) ostensackeni n. sp. is described from Baltic amber. Two new species are described from Rovno amber are described: Pedostrangalia (s. str.) rovnensis n. sp. and Anoplodera volyniensis n. sp. Differential characters with fossil and extant species are provided.

A new species of the genus Airapus Stebnicka & Howden, 1996 (Coleoptera: Scarabaeidae: Aphodiinae) from Papua New Guinea

2024-01-16T09:32:27+00:00

A new species of the the genus Airapus Stebnicka & Howden, 1996 - A. madangensis sp. nov. from Papua New Guinea is described and illustrated.

A new species of the genus Rhyparus Westwood, 1845 (Coleoptera: Scarabaeidae: Aphodiinae) from Papua New Guinea

2024-01-16T09:39:22+00:00

The author here describe and illustrate Rhyparus anichtchenkoi sp. nov. from Papua New Guinea. The newly described species was carefully compared with the most similar species i.e.: R. gracilis Arrow, 1905 and R. mokaiensis Stebnicka, 1998. Methods of establishing new species and correlations between them are briefly discussed.

A new species of the genus Stenommatus Wollaston, 1873 (Coleoptera, Curculionidae) from Indonesia

2024-01-16T09:49:43+00:00

A new species, Stenommatus insularis Legalov, sp. nov. from Bacan Isl. (Indonesia: Maluku Islands) is described and illustrated. This new species is similar to S. telnovi Legalov, 2022 from New Guinea but differs in the larger body size, wider elytra, more roughly punctured pronotum, and thicker antennal scape. It is the first record of the genus Stenommatus from Maluku Islands.

A new species of the genus Auletanus Voss, 1922 (Coleoptera, Rhynchinidae) from Indonesia

2024-01-16T09:56:14+00:00

A new species, Auletanus (Neauletes) tanimbarensis Legalov, sp. nov. from Yamdema isl. (Indonesia: Maluku Province: Kepulauan Tanimbar) is described and illustrated. The new species is similar to Auletanus (Neauletes) madangensis (Legalov, 2007) from New Guinea but differs in larger punctures forming more regular rows in the first half of the elytra, shorter antennomere 11, long and narrow aedeagus, different form of the armament of the endophallus. It is the first record of the genus Auletanus Voss, 1922 from Kepulauan Tanimbar.

Globicornis samlandensis sp. nov. – a new species of Megatominae (Coleoptera: Dermestidae) from Baltic amber

2024-01-16T12:54:54+00:00

Based on a well-preserved specimen in Eocene Baltic amber, a new species Globicornis samlandensis sp. nov. (Coleoptera: Dermestidae) is described and illustrated. The new fossil species differs from extinct congeners in having antennomere 10 short and subtriangular with a rounded apex, and about as long as wide; while the pronotum and elytra are unicolorous dark brown, and covered with unicolorous dark setae (without patches). An updated key to fossil Globicornis species known from Baltic amber is also provided.

Two new taxa of fossil Cantharidae from Baltic amber

2024-01-16T13:11:00+00:00

In this document, two new fossil soldier beetles (family Cantharidae) from the Baltic amber from Yantarny, Kaliningrad Region, Russia are described, illustrated and compared with all known fossil congeners: Cacomorphocerus incurvus sp. nov. and Malthinus (Malthinus) amicitiae sp. nov.

Two new species of Cacia Newman (Coleoptera, Cerambycidae, Lamiinae) from the Mindoro Biogeographic Region of the Philippines

2024-01-16T13:24:28+00:00

Two new species of Cacia Newman, 1842, Cacia (Ipocregyes) katrinae sp. nov. and Cacia (Cacia) aeschyae sp. nov., are described and illustrated from Mindoro Island. Prior to this, only one species was described from Mindoro, C. estrellae Hüdepohl, 1989. With the addition of these new species, Mindoro Island now has three species, and the Philippines with 51 species and 2 subspecies of Cacia.

Two new species of long-horned beetles (Coleoptera: Cerambycidae) from the Philippines

2024-01-16T13:37:11+00:00

Chydaeopsis torrejosae sp. nov. and Cleptometopus pepitoi sp. nov. from the Philippines are described, illustrated and compared with similar species. The genus Chydaeopsis Pascoe, 1864 in the world fauna represented by 5 species, but genus Cleptometopus Thomson, 1864 - by 72 species and subspecies.

New species of the genus Cristaphanes Aurivillius, 1916 (Coleoptera: Cerambycidae) from Palawan

2024-01-16T18:09:29+00:00

Cristaphanes palawanus sp. nov. from Palawan island, the Philippines, is described, illustrated and compared with other similar species. There are currently 8 species of the genus Cristaphanes kn own in the world fauna, but 2 species are found in the Philippine archipelago.

New Nidella Gressit & Rondon 1970 (Coleoptera: Cerambycidae) species from Palawan

2024-01-16T18:33:40+00:00

Nidella palawana sp. nov. species from Palawan island, the Philippines is described and illustrated. The world fauna of the genus Nidella Gressit & Rondon 1970 is now represented by thirteen species.

Borneogrammus hamiguitanus sp. nov. (Coleoptera: Cerambycidae) from Mindanao

2024-01-16T19:09:04+00:00

Borneogrammus hamiguitanus sp. nov., a species new to science, is described from Mindanao Island. The previously monotypic genus, known only from Borneo (Malaysia, Sabah), is recorded in the Philippines for the first time.

Two new species of the genus Metabacetus Bates, 1892 from the Philippines, and taxonomic notes on the genus Aristopus LaFerté-Sénectère, 1853 (Coleoptera, Carabidae, Pterostichinae, Abacetini)

2024-01-16T19:24:15+00:00

Two new species of the genus Metabacetus Bates, 1892 from Mindanao Island (Philippines) are described and illustrated: M. novus sp. nov. and M. straneoi sp. nov. Two new synonyms for Aristopus latus (Andrewes, 1947) are established: Drimostoma kaszabi Jedlička, 1954 syn. nov., and Aristopus humeratus Fedorenko, 2021 syn. nov. Images of habitus and genitalia of A. latus are provided. Aristopus latus is recorded from the Philippines for the first time.

To the knowledge on Metapocyrtus Heller, 1912 (Coleoptera: Curculionidae: Pachyrhynchini) species from Sibuyan Island, with description of new species.

2024-01-16T20:00:28+00:00

One new species of the tribe Pachyrhynchini of the genus Metapocyrtus Heller, 1912 (Coleoptera: Curculionidae: Pachyrhynchini) from the Sibuyan Island, Romblon, Philippines is described and illustrated: M. romblonensis sp. nov. Fauna and photographs of Metapocyrtus Heller, 1912 from Sibuyan Island is presented.

Four new species of the genus Metapocyrtus Heller, 1912 (Coleoptera: Curculionidae: Pachyrhynchini) from Mindanao Island, Philippines.

2024-01-16T20:24:48+00:00

Four new species of the tribe Pachyrhynchini of the genus Metapocyrtus Heller, 1912 (Coleptera: Curculionidae: Pachyrhynchini) from the Mindanao Island, Philippines are described and illustrated: M. (M.) tetramaculatus sp. nov., M. (M.) fulvus sp. nov., M. (T.) unalineatus sp. nov., M. (T.) pseudolanaoensis sp. nov. The supplementary photographic and comparative material is provided.

A new subspecies of Boletoxenus mixtus Grimm, 2014 (Coleoptera: Tenebrionidae: Tenebrioninae)

2024-01-16T20:40:35+00:00

Boletoxenus mixtus dynastes ssp. nov., a new subspecies of mycetophagous Bolitophagini darkling beetles from mainland SE Asia, is described and illustrated.

Metapocyrtus (Sclerocyrtus) dinagatensis sp. nov. from Dinagat Islands, Philippines, with biogeographical and ecological notes, and a checklist of subgenus Sclerocyrtus in the Philippines (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini)

2024-01-17T07:35:28+00:00

A new species of the genus Metapocyrtus Heller, 1912, subgenus Sclerocyrtus Heller, 1912 from Dinagat Islands, Philippines, is described and illustrated: M. (S.) dinagatensis sp. nov. This is the eighth species of the subgenus Sclerocyrtus in the Philippines and the third record of Metapocyrtus on the island. This paper provides a short ecological and biogeographical note of the new species and a checklist of the subgenus Sclerocyrtus in the Philippines. The discovery of this flightless weevil highlights the rich, and understudied fauna of Dinagat and calls for its conservation as the island, considered a mining reserve, faces an environmental catastrophe.

Primum non nocere: Technologically advanced non-invasive pheromone traps for sustainable monitoring of the European threatened hermit beetles Osmoderma barnabita / eremita (Coleoptera: Scarabaeidae)

2024-01-17T09:10:48+00:00

A smart pheromone trap designed for the monitoring of Osmoderma barnabita / eremita has been successfully developed and testedin situ. The trap's design and operational principles allowa photo-recording of the capture moment and logging parameters of air temperature and humidity at the moment of capture. These dataare then seamlessly transmitted to a server via mobile network. The adaptability of environmental parameter recording allows customization to suit specific requirements of a given study. Rigorous testing of these traps within three Natura 2000 sites in Latvia in 2003has substantiated their robust performance and efficiency. Notably, the traps exhibit versatility and can be modified and tailored for monitoring various insect species, utilizing both pheromones and lures as attractants. This innovation holds promise for advancing ecological research and monitoring endeavours pertaining to diverse insect populations.

Two new fossil Silinae (Coleoptera, Cantharidae) from Baltic amber

2024-01-17T09:43:51+00:00

Based on inclusions in Eocene Baltic amber, two new fossil species of the family Cantharidae, namely Podosilis groehni sp. nov. (the second fossil species of the genus) and Silis (Silis) carsteni sp. nov., are described and illustrate These new species are compared with the other known taxa of both genera from various amber deposits.

Neotype designation of Anthrenus goliath Saulcy in Mul-sant & Rey, 1867 (Coleoptera, Dermestidae, Megatominae)

2024-01-17T10:08:16+00:00

Anecdotal evidence indicates that the holotype of Anthrenus goliath Saulcy in Mulsant & Rey, 1867 was lost along with other holotypes in Mulsant’s collection through neglect and poor storage prior to transfer to Museum National d'Histoire Naturelle, Paris, in 1944. Here, a (male) neotype for A. goliath is designated. The only feasible confusion species, A. coro-na Holloway, 2021 is considered to ensure the neotype is definitively A. goliath. Images of habitus, antenna, aedeagus, and sternite IX are illustrated. A female of the species is also shown. The only known location of A. goliath currently known is Egypt.