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201 results for “treehopper”
FIG. 3 in New species, synonymies and life-histories in the South-East Asian treehopper genus Pyrgauchenia Breddin (Auchenorrhyncha: Membracidae: Centrotinae)
FIG. 3. External features in Pyrgauchenia colorata. (A± C) Habitus, right lateral and frontal view: (A) brunnei paratype male; (B) male leg. U. Stegmann; (C) colorata paralectotype female. (D, E) Distal lobes of anterior process of pronotum, anterodorsal and left lateral view respectively, male leg. U. Stegmann (dotted and solid line, respectively: median carina). (F±H) Habitus female, right lateral and frontal view: (F) colorata lectotype; (G) angulata paratype; (H) leg. U. Stegmann. (I) Female pronotum, left lateral view, leg. U. Stegmann. (J) Apex of anterior process of female, posterior view, leg. U. Stegmann.
FIG. 1 in New species, synonymies and life-histories in the South-East Asian treehopper genus Pyrgauchenia Breddin (Auchenorrhyncha: Membracidae: Centrotinae)
FIG. 1. External features and genitalia in Pyrgauchenia species, left lateral view, except where indicated (for arrows see text). (A±F) tristaniopsis: (A) head, frontal view; (B) left tegmina; (C) male genital capsule; (D) subgenital plates, ventral view; (E) 2nd valvulae; (F) female genital capsule. (G±H) biuni: left side of pronotum of last instar nymph, (G) female; (H) male. (I±K) colorata, last instar nymph: (I) pronotum of female; (J) pronotum of male; (K) abdominal apex in dorsal view. (L, M) pendleburyi, pronotum of last instar nymph: (L) female; (M) male.
FIG. 2 in New species, synonymies and life-histories in the South-East Asian treehopper genus Pyrgauchenia Breddin (Auchenorrhyncha: Membracidae: Centrotinae)
FIG. 2. Pyrgauchenia biuni (paratypes unless stated otherwise) (for arrows and arrowhead see text). (A) Habitus male, right lateral and frontal view (marked distance indicates length of anterior process). (B) Habitus female, right lateral and frontal view. (C) Distal lobes of male anterior process, anterodorsal view (dotted line: median carina). (D) Distal lobes of male anterior process, left lateral view. (E) Distal lobes of female anterior process, anterodorsal view. (F±H) Aedeagus, posterior (right: holotype), left lateral and apical view respectively (broken line in (G) indicates gonoduct on posterior side and median groove on anterior side). (I) Left style, left lateral view (upper: holotype) (broken line indicates membrane connecting the styles; marked distance with arrowhead indicates perspective of (J )). (J) Left style in posterior view, as indicated by arrowhead in (I) (left: holotype) (line indicates median plane).
Data from: Model selection analysis of temporal variation in benefit for an ant-tended treehopper
<p>Recent studies of mutualism have emphasized both that the net benefit to participants depends on the ecological context and that the density‐dependent pattern of benefit is key to understanding the population dynamics of mutualism. Indeed, changes in the ecological context are likely to drive changes in both the magnitude of benefit and the density‐dependent pattern of benefit. Despite the close linkage between these two areas of research, however, few studies have addressed the factors underlying variation in the density‐dependent pattern of benefit. Here I use model selection to evaluate how variation in the benefits of a mutualism drives temporal variation in the density‐dependent pattern of net benefit for the ant‐tended treehopper Publilia concava. In the interaction between ants and treehoppers in the genus <i>Publilia</i>, ants collect the sugary excretions of treehoppers as a food resource, and treehoppers benefit both directly (e.g., by feeding facilitation) and indirectly (e.g., by predator protection). Results presented here show that temporal changes in the relative magnitude of direct and indirect benefit components of ant tending, especially the effectiveness of predator protection by ants, qualitatively change the overall pattern of density‐dependent benefit between years with maximum benefit shifting from treehoppers in small to large aggregations. These results emphasize the need for empirical studies that evaluate the long‐term dynamics of mutualism and theoretical studies that consider the population dynamics consequences of variation in the density‐dependent pattern of benefit.</p>
FIGURE 10 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 10. Male of Bubalopa iguaque Flórez-V and Evangelista sp. nov. Abdomen: A) Dorsolateral view, B) ventral view, C) lateral view, D) pygofer. E) Subgenital plate in ventral view. Aedeagus: F) lateral view, G) caudal view, H) anterior view. Parameres: I) Lateral view, J) dorsal view.
FIGURE 9 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 9. Holotype of Bubalopa iguaque Flórez-V and Evangelista sp. nov.: A) Frontal view. B) Dorsal view. C) Lateral view. D) Frontolateral view. Bubalopa obscuricornis Stål, 1869: E) Frontal view. F) Dorsal view. G) Lateral view. H) Frontolateral view.
FIGURE 7 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 7. Male of Bubalopa furcata (Fairmaire, 1846). Abdomen: A) Dorsolateral view, oval pits indicated by a rectangle, B) ventral view, C) close-up of abdominal spiracles, D) close-up of scars on abdominal terga III and IV, E) lateral view. F) Pygofer in lateral view. G) Subgenital plate in ventral and dorsal view. Aedeagus: H) Lateral view, I) caudal view, J) anterolateral view. K) Subgenital plate in lateral view. Parameres: L) Lateral view, M) dorsal view, N) ventral view.
FIGURE 8 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 8. Female of Bubalopa furcata (Fairmaire, 1846). Abdomen: A) Dorsal view, B) ventral view, C) lateral view, oval pits indicated by a rectangle, D) Pygofer. E) Close-up of spiracle. F) Close-up of scars on terga III–V. First valvulae: G) lateral view, H) close-up apex. Second valvulae: I) lateral view, J) close-up apex.
FIGURE 6 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 6. Bubalopa furcata (Fairmaire, 1846). A) male abdomen, oval pits indicated by a rectangle. B) Female, ventral view. Fourth-fifth instar nymph: C) Frontal view. D) Head, anteroventral view. E) Head, ventral view. F) Lateral view, left side. F) Lateral view, right side. G) Frontolateral view. H) Dorsal view. ach: lateral abdominal chalazae; as: abdominal scoli; hs: head scoli; mss: mesothoracic scoli; mts: metathoracic scoli; pms: premetopidium scoli; pos: postmetopidium scoli; shb: suprahumeral horns bud; sps: small spinelike scoli.
FIGURE 5 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 5. Bubalopa furcata (Fairmaire, 1846). Male: (A–E) A) Frontal view. B) Dorsal view, pronotal scars indicated by a rectangle. D) Lateral view. E) Frontolateral view. Female: (E–H). E) Frontal view. F) Dorsal view. G) Lateral view. H) Frontolateral view.
FIGURE 3 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 3. Live specimens of Bubalopa furcata. Nymphs: A) habitus of an early instar. B–D). Fourth/fifth instar nymph: B) habitus in lateral view, C) 4/5th instar nymph resting near the stipule of its host plant (Senna pistaciifolia), D) habitus in lateral view. Adult: E) frontal habitus, F) lateral habitus.
FIGURE 1 in A revision of the treehopper genus Bubalopa Stål illuminates the systematics of Hyphinoini (Hemiptera: Auchenorrhyncha: Membracidae)
FIGURE 1. Live specimens of Hyphinoe obliqua (Walker, 1858). Nymphs: A) and B) 1/3rd instar, C) 4/5th instar, D) Last instar exuvia.
FIGURE 1. Mutilifolia nishidai, n in A striking new treehopper genus Mutilifolia (Hemiptera: Membracidae: Smiliinae: Telamonini), from Costa Rica
FIGURE 1. Mutilifolia nishidai, n. sp., holotype: habitus illustrations and right forewing. A, Pronotum and head of live specimen, lateral view (Copyright © 2014, by Kenji Nishida). B, Pronotum and head, lateral view. C, Pronotum and head, anterior view. D, Head and humeral angles, anterior view. E, Right forewing, lateral view.
FIGURE 2 in A striking new treehopper genus Mutilifolia (Hemiptera: Membracidae: Smiliinae: Telamonini), from Costa Rica
FIGURE 2. Female (A) and male (B–E) genitalia, and metathoracic leg (F, G). A, Mutilifolia nishidai, n. sp., paratype: second valvulae, lateral view. B, M. nishidai, holotype: left lateral plate, lateral view. C, M. nishidai, holotype: subgenital plate and left and right style clasp, ventral view. D, M. nishidai, holotype: aedeagus, lateral view. E, Archasia belfragei (Wallace research, #09-160c): left style, ventrolateral view. F, M. nishidai, holotype: left metathoracic tibia and tarsus, ventral view. G, M. nishidai, paratype, left metathoracic femur, lateral view.
Lagged effects of herbivory impact host-choice but not nymphal survivorship in an ant-protected treehopper
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Data from: Model selection analysis of temporal variation in benefit for an ant-tended treehopper
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Data from: Local population density and group composition influence signal-preference relationships in Enchenopa treehoppers (Hemiptera: Membracidae)
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Patterns of Thermal Sensitivity and Sex-Specificity of Courtship Behavior Differs Between Two Sympatric Species of Enchenopa Treehopper
<p> </p> <p>Predicting how insects will react to future thermal conditions requires understanding how temperature currently affects insect behavior, from performance traits to those involved in mating and reproduction. Many reproductive behaviors are thermally-sensitive, but little is known how temperature affects the behaviors used to find mates and coordinate mating. Here, we investigate how temperature influences courtship activity in two sympatric species of <i>Enchenopa </i>treehoppers (Hemiptera: Membracidae). <i>Enchenopa </i>use substrate-borne vibrational signals exchanged in male-female duets to facilitate pair formation prior to mating. In a controlled laboratory setting, we assessed the likelihood of males and females to produce courtship signals across a range of ecologically relevant temperatures. We found that changes in courtship activity across temperatures differed between the two species. We also found sex differences within species: in one species males were more likely to signal at higher temperatures, while in the other species females were more likely to signal at higher temperatures. Our results suggest that sex-specific responses to temperature may constrain mating to narrower ranges of temperatures. Furthermore, sympatric species may respond differently to changes in thermal variation despite sharing similar climactic history.<br> </p>
FIGURE 13 in Morphology-based phylogenetic analysis of the treehopper tribe Smiliini (Hemiptera: Membracidae: Smiliinae), with reinstatement of the tribe Telamonini
FIGURE 13. Antianthe group: A–B, Antianthe expansa (Germar), left metathoracic leg, #09-183a3.
Fig. 8 in Two new species of the treehopper genus Machaerotypus Uhler, 1896 from China (Hemiptera: Membracidae: Centrotinae)
Fig. 8.Pronotum of 13 species of genus Machaerotypus Uhler, 1896.A–M. Lateral view.a–g. Dorsal view. A, a. M. camelliae Chou & Yuan, 1981. B, b. M. rubronigris Funkhouser, 1938. C, c. M. rubromarginatus Kato, 1940. D, d. M. semirubronigris Yuan & Chou, 1992. E, e. M. taibaiensis Yuan, 2002. F, f. M. yananensis Chou & Yuan, 1981. G, g. M. mali Chou & Yuan, 1981. H. M. stigmosus Li & Chen sp. nov. I. M. ishiharai Kato, 1940. J. M. subinermis Lindberg, 1927. K. M. sibiricus (Lethierry, 1876). L. M. arisanus (Kato, 1928). M. M. nodulus Li & Chen sp. nov. Figures based on Lindberg (1927), Kato (1928) and Yuan & Chou (2002). The dotted line represents the simulation diagram.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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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