The Coleopterists Society

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International Society for the study of beetles. Publisher of The Coleopterists Bulletin Reposts/likes≠endorsement

Per sample overall eDNA detection probability of eDNA capture at an occupied site, and probability of molecular detection across 3 technical replicates given a sample contains coconut rhinoceros beetle (Oryctes rhinoceros; CRB) DNA.
Cheironitis moeris (Pallas, 1787). A. Habitus male dorsal view; B. Ventral view of male; C. Head of male; D. Male protibia; E. Habitus female dorsal view; F. Head of female; G. Detail of male gena; H. Right lateral view of aedeagus; I. Ventral view of parameres; J. Dorsal view of parameres. Scale bars: 0.7 mm (I, J); 1.0 mm (D, H); 2.0 mm (C, F); 3.0 mm (A, B); 5.0 mm (E).
Cyclidiellus velutinus (Westwood, Citation1874). Female at MFNB (Mexico [doubtful data]). (A) Habitus, dorsal view. (B) Habitus, ventral view. (C) Pronotum, dorsal view. (D) Protibia of male, dorsal view (Male at RMNH [no data]). (E) Protibia of female, dorsal view. (F) Habitus, dorsolateral view. (G) Habitus, lateral view. (H) Aedeagus, lateral view. (I) Surface of elytra. Scale bars = 1 mm
FIGURES 1–6. Proxatrypanius incertus (Bates, 1881). 1–4) Male from Mexico (Guerrero): 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus; 4) Head, frontal view. 5) Holotype of Proxatrypanius rockefelleri Gilmour, 1959, by Jesus Santiago Moure. 6) Holotype of Oedopeza incerta Bates, 1881, by Jesus Santiago Moure.
Several histological images of MB beetles according to Panov. (a) tripartite calyx MB ground beetle Pterostichus aethiops (Carabidae), KC – Kenyon cells, C – cup (Panov, 2013b). (b) bipartite calyx in Anisoplia agricola (Rutelinae), Cl – lateral calyx, Cm – medial calyx, P – pedunculus (Panov, 2010b). (c) detail of the right outer cup of MB in the flat-faced longhorn Morimus verecundus (Lamiinae) with neuroblasts, KC – Kenyon cells, PC – proliferative centre, C – cup (Panov, 2011).
Hintonelmis sloanei (Coleoptera: Elmidae). Male adult, habitus. — A: Dorsal view. — B: Ventral view. — C: Lateral view. — D: Frontal view.
Habitus of L. (Lagriella) cordata sp. nov. A, B. Holotype: A. Dorsal view; B. Ventral view; C, D. Female paratype (2021.V.9, Guangxi, Hezhou City, Daguishan Mountain, Qixingchong, No. 21-5-9-1): C. Dorsal view; D. Ventral view. Scale bar: 2 mm (A–D).
Study area and species dataset. Map of the Inner Western Anatolia section of Türkiye showing presence (red dots) and absence (open circles) records of Meloidae species across 487 sampled sites. Photographs illustrate the 28 Meloidae species analysed in this study, with species names listed in the same order as in Table 1 (no. 1–28 species)
Figure 2. Genera of the Amblyopinina rove beetles associated with mammals. (A) Myotyphlus Fauvel, Citation1883. (B) Amblyopinus Solsky, Citation1875. (C) Amblyopinodes Seevers, Citation1955. (D) Chilamblyopinus Ashe and Timm, Citation1988. (E) Edrabius Fauvel, Citation1900. (F) Megamblyopinus Seevers, Citation1955.
Instar III larva of Agabus browni Kamiya, 1934
Association of Angimordella beetle, thrips, and eudicot pollen in mid-Cretaceous amber (NIGP171315). A Angimordella burmitina preserved together with a thrips, under widefield fluorescence. B Thrips under confocal microscopy, with arrows indicating two pollen grains in direct contact with the thrips (close-ups in insets). Scale bars: 500 µm
Habitus. A, B. Zaitzevia cf. chenzhitengi Jiang & Wang, 2020, male from Shaanxi. A. Dorsal view; B. Ventral view.
Fig. 1. External morphology of the antennae of M. diphysis (A) A male M. diphysis longhorn beetle (B) Schematic diagram of antennae of male and female M. diphysis (C) The head of male M. diphysis to show the extended antennae (D) The head of female M. diphysis. F1-F9, the first flagellum to the ninth flagellum; Pe, pedicel; Sc, scape.
FIGURES 13–15. Habitus of Melolontha wangyutangi Wang & Qiu sp. nov., holotype. 13, dorsal view; 14, ventral view; 15, lateral view from left. Scale bar: 10.0 mm.
Diagram illustrating key changes in wing architecture associated with body miniaturization. Black arrows represent the strength of miniaturization effects, proportional to the coefficient of determination. Blue bands indicate phylogenetic inertia in adaptations to body-size reduction. Scatter plots show the difference between optimal regression slopes (unbiased by ancestral stages) and evolutionary (actual) regression slopes. Beetle drawings depict the actual scale of the size differences between the largest and the smallest bark beetle species included in the analysis.
Figure 1. General habitus of Pagodocerus volkovitshi, holotype, NIGP208696, under reflected light. (A) Dorsal view. (B) Ventral view. Scale bars: 2 mm.
Figure 3. Adult morphology, reproductive behaviour and immature stages of Philonis inermis. (a) Adult showing characteristic body shape, colouration and scale pattern (2 mm scale bar). (b) Size comparison between female and male, illustrating sexual dimorphism. (c) Egg partially concealed by frass at oviposition site near a stem node (0.2 mm scale bar). (d) Hyaline, oval egg deposited singly in oviposition cavity (0.2 mm scale bar). (e) Longitudinal sections showing larval tunnelling path from oviposition site to the gall chamber; note progression of internal damage and gall formation (2 mm scale bar). (f) Mature larvae feeding within stem tissue; bottom image highlights the head capsule and sclerotised mandibles (2 mm scale bar). (g) Exarate pupa enclosed within a gall chamber, showing clearly differentiated appendages and body segmentation typical of weevil pupae (1 mm scale bar). (h) Fully developed adult in pre-emergence resting phase within the gall chamber, prior to perforating the gall wall (1 mm scale bar).
Paralectotype female of Leucothyreus noctivagus Ohaus, 1917. A. Dorsal view. B. Ventral view; C. Pronotum, head, and anterior legs of (left) female and (right) male; D. Mouthparts: D1. Labrum showing lack of apical projection; D2. Left mandible; D3. Left maxilla; D4. Labium showing crenulate apex. Scale bars: 5 mm (A, B); 1 mm (D).
Relationship between the number of successfully parasitized larvae and fresh body weight of pupae. Symbols indicate the number of inoculated parasitoids per host: 10 (squares), 20 (diamonds), and 40 (triangles)
Agrypninae
Daimophyllon ozzyosbournei gen. et. sp. nov., habitus: (a) lateral; (b) dorsal.
Stictoleptura variicornis and Sachalinobia koltzei occurring in the same host plant. (A) Host plant in which Lepturinae larvae were collected. Arrows indicate the positions where larvae were found. (B) Lepturinae larva collected from the same host, tentatively identified as Sa. koltzei. (C) Pupa of St. variicornis identified by molecular analysis. (D) Larva of Sa. koltzei identified by molecular analysis.
Habitus of Miccolamia spp. 1, 2. M. savioi Gressitt, 1940 from Shanghai; 3, 4. M. mystica sp. nov. from Hubei (3 holotype, 4 paratype); 5, 6. M. minuta sp. nov. from Zhejiang (5 holotype, 6 paratype); 7. M. yanziae sp. nov. from Xizang (holotype); 8. M. holzschuhi sp. nov. from Yunnan; 9, 10. M. tonsilis Holzschuh, 2010; 11, 12. M. coenosa Holzschuh, 2010; 1, 3, 5, 7, 8, 9, 11. Male; 2, 4, 6, 10, 12. Female. Not to scale.
Figure 1. Elytral patterns of Cheilomenes sexmaculata (Fabricius) (modified from Kawakami et al. Citation2013).
Mitonuclear phylogenetic relationships within Adephaga. Left panel: ML phylogeny based on AA sequences of single-copy nuclear gene. Right panel: ML phylogeny reconstructed from mitochondrial AA sequences. Nodes with full bootstrap support (100) are unlabelled. Support values <95 highlighted in red, 95 to 99 in green. Species marked with an asterisk (*) represent novel sequences generated in this study.
FIGURE 1-8. Fig. 1. lectotype male and Fig. 2. Paralectotype female of Phyllobius brenskei Schilsky, 1911, designated herein, with their labels (Photos: Ivo Jurisch). Fig. 3. holotype male of Ph. nigrofasciatus Pesarini, 1975 (Photo: Michele Zilioli). Fig. 4. Male of Ph. nigrofasciatus from Afyonkarahisar. Fig. 5. Ditto female. Fig. 6. Detail of long hairs and scales of apical part of left elytron of Ph. brenskei. Fig. 7. Ditto Ph. nigrofasciatus. Fig. 8. Ditto Ph. occultatus sp. nov. (Photos: C. Germann).
Figure 2. Types of traps used in this study: (A) TT trap (handmade trap), made of two transparent plastic bottles connected through a Tornado Tube®; (B) BR trap (handmade trap), consisting of red polycarbonate panels, a funnel, and a Falcon tube as collection container; (C) MF trap (commercial trap), provided by ChemTica Internacional, composed of 12 vertically aligned interconnected funnels with a removable collection cup.
Mean (±SE) Shannon diversity indices of carabids and staphylinids across different adjacent habitat types (woody linear, herbaceous linear, adjacent crop) over the 2-year study period. Each point represents the Shannon diversity index calculated for a focal field of oilseed rape or adjacent habitat.
Holotype and paratype of Zeugophora (Pedrillia) liupanshanensis sp. nov. 84–87. Holotype, male; 84. Dorsal view; 85. Ventral view; 86. Head, anterior view; 87. Pronotum, dorsal view; 88–91. Paratype, male; 88. Dorsal view; 89. Ventral view; 90. Head, anterior view; 91. Pronotum, dorsal view. Scale bars: 1.0 mm (84, 85, 88, 89); 0.5 mm (86, 87, 90, 91).
Outbreaks of Ips hauseri, a major bark beetle pest in Central Asian Picea schrenkiana forests, have intensified under climate warming and prolonged droughts.
FIGURES 1–3. Barra tocantinensis sp. nov., holotype male from Palmas; 1, habitus in dorsal view; 2, habitus in ventral view; 3, habitus in lateral view. Scale bars 0.5 mm.
Figure 1. The adult of C. saucia. (A) the dorsal view; (B) the ventral view. Photographed by Jing-Qiang zhou.
Fig. 2. Heatmap of white grub genus abundance per plot. NMDS with white grub species abundance by plot. Plots are grouped by management system.
Habitus of Melandryidae species. a. Dircaeomorpha elegans Sasaji, 1974, male; b. Sallumia davidis Fairmaire, 1889, male; c. Mikadonius gracilis Lewis, 1895, male. Scale bar: 5 mm.
Overview of the experimental setups. (A) Beech logs (Fagus sylvatica) baited with lineatin, (B) detail of logs showing beetle entry holes, (C) Theysohn-type pheromone trap, (D) pile of beech branches, (E) emergence traps with beech branches, and (F) female Taphrorychus bicolor.
Overview of the experimental setups. (A) Beech logs (Fagus sylvatica) baited with lineatin, (B) detail of logs showing beetle entry holes, (C) Theysohn-type pheromone trap, (D) pile of beech branches, (E) emergence traps with beech branches, and (F) female Taphrorychus bicolor.
FIGURE 1. Habitus A Nazeris wumengensis sp. nov.; B N. zhaotongus sp. nov.; C N. guohaoi sp. nov.; D N. serratimarginatus sp. nov. Scale bars: 1.0 mm.
Phylogenetic inferences of the Lucanus maculifemoratus complex based on six concatenated loci using Bayesian inference (BI). The statistical support for each node is shown as follows: Posterior probabilities of BI (left), non-parametric bootstrapping values of RAxML (middle) and ultrafast bootstrap support of IQ-tree (right).h
Distribution of Prosopocoilus species in the Izu islands
Habitus of new Metopiellus species. A–C. M. palamaku sp. nov. (female dorsal, female lateral, male holotype ventral); D–F. M. chasqui sp. nov. (male holotype dorsal, female paratype head + pronotum, male non-type head only). Scale bars: 1 mm (unless otherwise indicated).
Typical larval GBSTB burrows observed at (a) Whitecap Beach, (b) the Pike Lake pump station, and (c) north of Gardiner Dam. Photos by Stephen Srayko.
Study area location (a: study area, b: study area in Romania), c: representation of the VHF transmitter at scale attached on Osmoderma barnabita pronotum.
FIGURE 1–12. a) Habitus. b) Labels. ALEOCHARINAE: 1—Abrotels badia; 2—Abroteles bisetosus; 3—Abroteles compacticornis; 4—Abroteles lobata; 5—Abroteles rurrenabaquensis; 6—Abroteles setulosus; 7—Acanthodonia brasiliensis; 8—Acanthodonia bruchi; 9—Acanthodonia denticulata; 10—Acanthodonia parvispina; 11—Aleochara pseudochrysorrhoa; 12—Atheta acromyrmecicola.
Undigested beetle remains excreted by juvenile Aquarana catesbeiana collected from a pond. Dead adults of Regimbartia attenuata are surrounded by a dotted circle. Other beetles include Hydaticus grammicus, Hydroglyphus japonicus, Rhantus suturalis, Enochrus simulans, Sternolophus rufipes, Hydrochara affinis, and Chlaenius posticalis. Photo credit: Shinji Sugiura.
Fig. 1. Study sites map distribution in the avocado belt in Michoacán state, México. The triangles represent sites with higher forest cover. Circles are the sites with a similar proportion of forest and avocado orchard cover. Squares represent the sites with higher avocado orchard cover.
Fig. 1. Platypsyllus castoris (Bulgaria) – size: 2 mm.
A depiction of where measurements were taken for each beetle. Measurements included the length of the second and third segments of the antennae, the length and width of the elytra, and the length of the first and second tibiae.
Type specimens of Lucanus kanoi and L. k. piceus deposited in NMNS, Tokyo. Photo by H. Akimoto and M. Hoso. Scale bar: 1 cm.
Fig. 2. Habitus of the male specimen of Myriochila (Myriochila) melancholica melancholica (Fabricius, 1798) collected near Rupite (A, scale bar: 5 mm), the collection location within Bulgaria (B) and a picture of the habitat on the collection day (C).
Habitus of Megalopinus arunachalensis spec. Megalopinus mithun spec. nov. holotype 2. Megalopinus micros spec. nov. holotype 3. Megalopinus helferi collecting site Pakke 4. Megalopinus nepalensis collecting site Tato 5. Megalopinus mithun spec. nov.living specimen Megalopinus micros spec. nov.iving specimen Megalopinus nepalensis
FIGURES 252–253. Inner cephalic skeletal structures of Palaeostigus ruficornis schimitscheki, sagittal section of anterior region of head (252), and anterior view of tentorium, with anterior arms removed (253). Abbreviations: ata, anterior tentorial arm; dta, dorsal tentorial arm; hr, hypostomal ridge; lt, laminatentorium; pta, posterior tentorial arm; smn, submentum.
A–E Coccoderus trimaculatus sp. nov., holotype female. A dorsal view; B ventral view; C lateral view; D frontal view; E prothorax.
figures 36–38. Habitus and microsculpture of head (a), pronotum (b), elytra (c), and abdomen (d) of Scopaeus nigerrimus,holotype ♀, Republic of South Africa, Western Cape, Cape Town: Simon’s Town (36); S. rectiphallatus, paratype ♀, Republicof South Africa, Western Cape: Ruiterbos (37); S. capensis, holotype ♂, Republic of South Africa, Western Cape, Table Mts NP: Olifantbos (38, abdominal segments IX and X removed for genital dissection).