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569 results for “cockroaches”
FIGURE 2 in Phidon chanco sp. nov. of cockroach from the coastal forest of central Chile (Insecta: Blattaria)
FIGURE 2. Phidon chanco sp. nov. male, head and mouth parts: A. head, anterior view; B. frons and clypeus, anterior view; C. mandibles, ventral view; D. labium, ventral view; E. maxilla, ventral view; F. lacinia apex, ventral view. Scale bars: A, B, C, D, and E: 0.5 mm; F: 50 µm.
FIGURE 11 in Phidon chanco sp. nov. of cockroach from the coastal forest of central Chile (Insecta: Blattaria)
FIGURE 11. Phidon chanco sp. nov. female, genital sclerites of ventral complex: A. ventral complex, dorsal view SEM; B. sclerites and spermatheca, lateral view; C. scheme of ventral complex and spermatheca. Abbreviations: as bsvv: anterior sclerite of the basivalvulae ventral; as Ls: anterior sclerite of the laterosternite; bc: bursa copulatrix; bsvd: basivalvulae dorsal arms; bsvv: basivalvulae ventral arms; Gpr: gonopore; inst. f.: intersternal fold; Ls: laterosternite; Ls. p.: laterosternite pubescence; ml: membranous lobe of the bursa copulatrix; Pp: paraproct; Pt: parategite TIX; sp: spermatheca; TVIII: tergite VIII; TIX: tergite IX; vs: ventral sclerite. Scale bar: 0.5 mm.
FIGURE 4 in A new species of Aoruroides Travassos & Kloss, 1958 (Nematoda: Oxyuridomorpha Thelastomatidae) parasite of the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Japan with comments on the validity of the genus Aoruroides
FIGURE 4. Maximum likelihood (ML) tree inferred from the D2-D3 LSU rDNA for several species of the family Thelastomatidae (Nematoda: Oxyuridomorpha: Thelastomatoidea). Hystrignathus sp. (Hystrignathidae), Cameronia multiovata (Thelastomatidae) and three species of Travassosinema (Travassosinematidae) were used as outgroup taxa (in red). Values at the nodes correspond to bootstrap resampling (≥70)/posterior probability (≥0.90). Newly obtained sequences in bold.
FIGURE 3. Aoruroides chubudaigaku n in A new species of Aoruroides Travassos & Kloss, 1958 (Nematoda: Oxyuridomorpha Thelastomatidae) parasite of the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Japan with comments on the validity of the genus Aoruroides
FIGURE 3. Aoruroides chubudaigaku n. sp. (Nematoda: Oxyuridomorpha: Thelastomatidae). SEM images. Female. A. Cephalic end. B. Cephalic end, en face view. C. Vulva, ventral view. D. Anus, ventro-lateral view. Male. E. Cephalic end. F. Cephalic end, en face view. G. Cloacal region, ventro-lateral view. H. Cloacal region, ventral view (detail of the distal end of the post-cloacal appendage at the inferior left corner of the picture). Scale bars: A, C, D. 20 µm. B, G, H. 10 µm. E, F. 5 µm. Detail of the post-cloacal appendage. 2 µm.
FIGURE 1. Aoruroides chubudaigaku n in A new species of Aoruroides Travassos & Kloss, 1958 (Nematoda: Oxyuridomorpha Thelastomatidae) parasite of the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Japan with comments on the validity of the genus Aoruroides
FIGURE 1. Aoruroides chubudaigaku n. sp. (Nematoda: Oxyuridomorpha: Thelastomatidae). Female. A. Oesophageal region, lateral view. B. Tail, lateral view. C. Cephalic end, en face view (reconstructed from SEM images). D. Cephalic end (reconstruct- ed from SEM images). E. Vagina vera and vagina uterina, lateral view. F. Genital tract, lateral view. G. Habitus, lateral view.
Robustness of consensus is independent from preference diversity among group members in the American cockroach (Periplaneta american)
Collective choices and consensus resulting from the competition of positive feedbacks, are the subject of numerous studies. However, how the interindividual diversity of preferences among the group members affects these dynamics is usually overlooked apart from vertebrates based studies. Gregarism is a useful model for studying how the interindividual diversity of preferences affects the collective choices and consensus. The decision-making of three types of groups of the cockroach <i>Periplaneta americana</i> is tested in a choice between an odorous shelter and an odourless one: naïves (individuals showing an inherent preference towards the odorous shelter); conditioned (individuals with the preference for the odorous shelter inhibited); and mixed (a combination of conditioned individuals and a minority of naïve ones). We show that while the consensus is robust for all groups (>90% of the total population is in the same shelter), the group composition determines the rate to achieve a consensus and the frequency of selection of the odorous shelter. Indeed, increasing the proportion of naïves in the group leads to an increasing number of consensuses towards the odorous shelter and to an increasing rate to reach them. We also show that the minority of naïve individuals in mixed groups act as leaders or influencers.
Data from: Diet specialization in an extreme omnivore: nutritional regulation in glucose-averse German cockroaches
Organisms have diverse adaptations for balancing dietary nutrients, but often face trade-offs between ingesting nutrients and toxins in food. While extremely omnivorous cockroaches would seem excluded from such dietary trade-offs, German cockroaches (Blattella germanica) in multiple populations have rapidly evolved a unique dietary specialization – an aversion to glucose, the phagostimulant in toxic baits used for pest control. We used factorial feeding experiments within the geometric framework to test whether glucose-averse (GA) cockroaches with limited access to this critical metabolic fuel have compensatory behavioural and physiological strategies for meeting nutritional requirements. GA cockroaches had severely constrained intake, fat and N mass, and performance on glucose-based diets relative to wild-type (WT) cockroaches and did not appear to exhibit digestive strategies for retaining undereaten nutrients. However, a GA × WT 'hybrid' had lower glucose aversion than GA and greater access to macronutrients within glucose-based diets – while still having lower intake and survival than WT. Given these intermediate foraging constraints, hybrids may be a reservoir for this maladaptive trait in the absence of positive selection and may account for the rapid evolution of this trait following bait application.
Data from: Folding wings like a cockroach: a review of transverse wing folding ensign wasps (Hymenoptera: Evaniidae: Afrevania and Trissevania)
We revise two relatively rare ensign wasp genera, whose species are restricted to Sub-Saharan Africa: Afrevania and Trissevania. Afrevania longipetiolata sp. nov., Trissevania heatherae sp. nov., T. hugoi sp. nov., T. mrimaensis sp. nov. and T. slideri sp. nov. are described, males and females of T. anemotis and Afrevania leroyi are redescribed, and an identification key for Trissevaniini is provided. We argue that Trissevania mrimaensis sp. nov. and T. heatherae sp. nov. populations are vulnerable, given their limited distributions and threats from mining activities in Kenya. We hypothesize that these taxa together comprise a monophyletic lineage, Trissevaniini, tr. nov., the members of which share the ability to fold their fore wings along two intersecting fold lines. Although wing folding of this type has been described for the hind wing of some insects four-plane wing folding of the fore wing has never been documented. The wing folding mechanism and the pattern of wing folds of Trissevaniini is shared only with some cockroach species (Blattodea). It is an interesting coincidence that all evaniids are predators of cockroach eggs. The major wing fold lines of Trissevaniini likely are not homologous to any known longitudinal anatomical structures on the wings of other Evaniidae. Members of the new tribe share the presence of a coupling mechanism between the fore wing and the mesosoma that is composed of a setal patch on the mesosoma and the retinaculum of the fore wing. While the setal patch is an evolutionary novelty, the retinaculum, which originally evolved to facilitate fore and hind wing coupling in Hymenoptera, exemplifies morphological exaptation. We also refine and clarify the Semantic Phenotype approach used in previous taxonomic revisions and explore the consequences of merging new with existing data. The way that semantic statements are formulated can evolve in parallel, alongside improvements to the ontologies themselves.
FIGURES 1–9 in Miroblatta baai, a new very large cockroach species from caves of Borneo (Blattaria: Blaberidae)
FIGURES 1–9. Miroblatta baai sp. nov..; 1. Adult male habitus; 2. Male pronotum; 3. Male forewing; 4. male hind wing (at rest, folded into two parts with the vannus flat); 5. Male genitalia, dorsal view; 6. Apex of sclerite L1 of male genitalia; 7. Right phallomere (cleft) of male genitalia; 8. Ventral view of the posterior part of male abdomen with cerci, subgenital plate and posterior margin of supraanal plate; 9. Ventral view of the posterior part of female abdomen with cerci, subgenital plate and posterior margin of supraanal plate; L1, L2d (hook), R2 (cleft), R3d, R3v, N: sclerites of male genitalia; sgp: subgenital plate; sap: supraanal plate; st: stylus.
FIGURE 1 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 1. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): 1a. Line drawing of holotype (CNU-B-NN-2006-006); 1b. Photograph of holotype (CNU-B-NN-2006-006).
FIGURE 4 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 4. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): 4a. Mutual fusion of two veins (R) (CNU-B-NN-2006-009RFW); 4b. Fusion of vein to another vein (R-M) (CNU-B-NN-2006-070RFW); 4c. Lost of a branch (A) (CNU-B-NN-2006-073-1LFW); 4d. Unusual morphology (R) (CNU-B-NN-2006-072LHW); 4e. Unusual morphology (A) (CNU-B-NN-2006-073-1RFW); 4f. Unusual morphology (Rs-M and CuA) (CNU-B-NN-2006-261RHW); 4g. Unfinished of vein (M, and CuA) (CNU- B-NN-2006-492RFW); 4h. Fused intercalary (CuA) (CNU-B-NN-2006-007LFW).
FIGURE 3 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 3. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): 3a. Sc (CNU-B-NN-2006-261); 3b. Diagonal kink (CNU-B-NN-2006-007); 3c-d. Unusual morphology, R and M of LFW, RFW (CNU-B-NN-2006-006).
FIGURE 6 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 6. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): 6a–f. Body. (CNU-B-NN-2006-007, 008, 009, 010, 070, 492).
FIGURE 2 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 2. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): Line drawings. 2a. Head (CNU-B-NN-2006-205); 2b. P.mx, P.lb and Md. (CNU- B-NN-2006-075); 2c. Foreleg (CNU-B-NN-2006-075); 2d. Midleg and Hindleg (CNU-B-NN-2006-258); 2e. Ovipositor (CNU-B-NN-2006-217).
FIGURE 5 in A new Jurassic carnivorous cockroach (Insecta, Blattaria, Raphidiomimidae) from the Inner Mongolia in China
FIGURE 5. Fortiblatta cuspicolor Liang, Vršanský et Ren sp. nov. Daohugou, Inner Mongolia, China. Middle Jurassic (the Late Aalenian or Early Bajocian): 5a–b. Head of CNU-B-NN-2006-075, 205; 5c. Foreleg CNU-B-NN-2006-075; 5d. Midleg and Hindleg of CNU-B-NN-2006-258; 5e. Prn of CNU-B-NN-2006-007; 5f–h. Ovipositor of CNU-B-NN- 2006-006, 114, 217 (photos taken under alcohol).
FIGURE 1 in Aoruroides cochinchinensis sp. n. (Oxyurida: Thelastomatidae) from Vietnamese Panesthiinae wood-burrowing cockroaches
FIGURE 1. Aoruroides cochinchinensis sp. n. A–D—male; E, F—female: A—anterior end; B—stoma; C—posterior end; D—excretory pore; E—anterior end; F—reproductive system.
FIGURE 2 in Aoruroides cochinchinensis sp. n. (Oxyurida: Thelastomatidae) from Vietnamese Panesthiinae wood-burrowing cockroaches
FIGURE 2. Aoruroides cochinchinensis sp. n. A–C—male; D, E—female: A—anterior end; B—mouth opening; Ccloacal region; D—anterior end; E—mouth opening.
FIGURE 6 in Enigmatic Late Permian cockroaches from Isady, Russia (Blattida: Mutoviidae fam. n.)
FIGURE 6. Forewings of Mutovia intercalaria sp.n. A, PIN 3840/56; B, PIN 3840/532; C, PIN 3840/53; D, PIN 3840/518; E, PIN 3840/54; F, PIN 3840/516; G, PIN 3840/356; H, PIN 3840/511; I, PIN 3840/500; J, PIN 3840/358. Scales = 10 mm.
FIGURE 3 in Enigmatic Late Permian cockroaches from Isady, Russia (Blattida: Mutoviidae fam. n.)
FIGURE 3. Forewings of Mutovia intercalaria sp.n. A, PIN 3840/56 (reverse, 16 mm); B, PIN 3840/358 (reverse, 16 mm). C Hind wing tentatively attributed into male of Mutovia intercalaria PIN 3840/529=533 (length 17.5mm) Scales = 1 mm.
FIGURE 2 in Enigmatic Late Permian cockroaches from Isady, Russia (Blattida: Mutoviidae fam. n.)
FIGURE 2. Forewings of Mutovia intercalaria sp.n. A, PIN 3840/52 (reverse, 19mm); B, PIN 3840/53 (reverse, 19 mm); C, holotype PIN 3840/57 (reverse, length 16 mm; pale area is due to damage); Scale = 1 mm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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