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61 results for “Megastigmus”
FIGURE 6. A in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 6. A. Cross section of a gall of Andricus kollari showing a larva of M. dorsalis in a secondary cell of the inquiline Synergus umbraculus, and the central cell occupied by the larva of M. stigmatizans. B. Larva of M. dorsalis in a peripheral cell of a gall of A. kollari. C. Larva of M. dorsalis in a gall of Andricus grossulariae (sexual gen.). D. Crosssection of a gall of Plagiotrochus kiefferianus with larvae of M. dumicola E. Larva of M. stigmatizans. F. Detail of head of the larva of M. stigmatizans. G. Cross section of a gall of A. kollari showing the central cell with a larva of M. stigmatizans. H. A seed inside a hip of Rosa sp., attacked by a larva of M. aculeatus.
FIGURE 5 in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 5. Mandibles of the final-instar larvae of Megastigmus. A. M. dorsalis, left mandible anterior view. B. M. dorsalis left mandible, posterior view. C. M. pistaciae, right mandible, posterior view D. M. dumicola, left mandible, anterior view E. M. dumicola, right mandible, anterior view. F. M. aculeatus, right mandible, posterior view G. M. stigmatizans, left mandible, anterior view. H. M. stigmatizans, right mandible, anterior view.
FIGURE 1 in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 1. Ventral view of final-instar larvae of Megastigmus. A. M. dorsalis ex Andricus kollari (asexual). B. M. dorsalis ex Andricus grossulariae (sexual). C. M. dumicola ex Plagiotrochus kiefferianus (asexual). D. M. stigmatizans ex Andricus kollari (asexual). E. M. pistaciae ex seeds of Pistacia lentiscus F. M. aculeatus ex seeds of Rosa sp.
FIGURE 2 in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 2. Lateral view of final-instar larvae of Megastigmus. A. M. dorsalis ex Andricus kollari (asexual). B. M. dumicola ex Plagiotrochus kiefferianus (asexual). C. M. stigmatizans ex Andricus kollari (asexual). D. M. aculeatus ex seeds of Rosa sp.
FIGURE 4 in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 4. Anterior view of mouthparts of final-instar larvae of Megastigmus. A. M. dorsalis ex Andricus kollari (asexual). B. M. dorsalis ex Andricus grossulariae (sexual). C. M. dumicola ex Plagiotrochus kiefferianus (asexual). D. M. stigmatizans ex Andricus kollari (asexual). E. M. pistaciae ex seeds of Pistacia lentiscus F. M. aculeatus ex seeds of Rosa sp.
FIGURE 3 in Larval morphology and biology of three European species of Megastigmus (Hymenoptera, Torymidae, Megastigminae) parasitoids of gall wasps, including a comparison with the larvae of two seed-infesting species
FIGURE 3. Anterior view of the head of the final-instar larvae of Megastigmus. A. M. dorsalis ex Andricus kollari (asexual). B. M. dorsalis ex Andricus grossulariae (sexual). C. M. dumicola ex Plagiotrochus kiefferianus (asexual). D. M. stigmatizans ex Andricus kollari (asexual). E. M. pistaciae ex seeds of Pistacia lentiscus F. M. aculeatus ex seeds of Rosa sp. Arrows point at antennal setae and anterior margin of clypeus.
Supplementary material 1 from: Roques A, Copeland RS, Soldati L, Denux O, Auger-Rozenberg M-A (2016) Megastigmus seed chalcids (Hymenoptera, Torymidae) radiated much more on Angiosperms than previously considered. I- Description of 8 new species from Kenya, with a key to the females of Eastern and Southern Africa. ZooKeys 585: 51-124. https://doi.org/10.3897/zookeys.585.7503
Sampling details on specimens used in the genetic study : Explanation note: Collection data for the specimens used in the genetic study:
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F. 8. Forewing of M. suspectus X, ex. Abies alba, Denmark. bc, basal cell; bsl, basal setal line; cc, costal cell; cu, cubital vein; pmv, postmarginal vein; smv, submarginal vein; spc, speculum; stg, stigma; stv, stigmal vein; ustv, upper part of stigmal vein.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 78–86. Male stigma of Megastigmus seed chalcids. (78) M. pistaciae; (79) M. rafni; (80) M. schimitscheki; (81) M. specularis; (82) M. spermotrophus; (83) M. strobilobius; (84) M. suspectus; (85) M. transvaalensis; (86) M. wachtli. Same origins as in (39–47). Scale bars=100 mm, except for (81, 83)=50 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F. 4. Electroscan front view of head, M. bipunctatus X, ex. Juniperus communis, France. Same abbreviations as in (2, 3). Scale bar=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F. 3. Front view of head, M. pictus X, ex. Larix decidua, Poland. ao, anterior ocellus; cly, clypeus; gen, gena; iaa, interantennal area; msl, malar sulcus; msp, malar space; po, posterior ocellus; psa, parascrobal area; sca, supraclypeal area; scr, scrobe; tor, torulus. Scale bar=1 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 124–129. Electroscan photographs of scutellum of female Megastigmus. (124) M. aculeatus; (125) M. amicorum; (126) M. atedius; (127) M. atlanticus; (128) M. bipunctatus; (129) M. brevicaudis. Same origins as in (11–16). Scale bars=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 115–123. Male genitalia of Megastigmus seed chalcids. (115) M. pinus; (116) M. pistaciae; (117) M. rafni; (118) M. schimitscheki; (119) M. specularis; (120) M. spermotrophus; (121) M. strobilobius; (122) M. suspectus; (123) M. transvaalensis. Same origins as in (38–46). Scale bar=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 136–144. Electroscan photographs of scutellum of female Megastigmus. (136) M. rafni; (137) M. rosae, Bulgaria; (138) M. schimitscheki; (139) M. specularis; (140) M. spermotrophus; (141) M. strobilobius; (142) M. suspectus; (143) M. transvaalensis; (144) M. wachtli. Same origins as in (23–31). Scale bars=100 mm, except for (138, 142). Scale bars=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 154–162. Electroscan photographs of scutellum of male Megastigmus. (154) M. pistaciae; (155) M. rafni; (156) M. schimitscheki; (157) M. specularis; (158) M. spermotrophus; (159) M. strobilobius; (160) M. suspectus; (161) M. transvaalensis; (162) M. wachtli. Same origins as in (39–47). Scale bars=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 107–114. Male genitalia of Megastigmus seed chalcids. (107) M. aculeatus; (108) M. amicorum; (109) M. atedius; (110) M. bipunctatus; (111) M. milleri; (112) M. nigrovariegatus; (113) M. pictus; (114) M. pinsapinis. Same origins as in (32–37, 76). Scale bar=100 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 48–59. Female stigma of Megastigmus seed chalcids. (48) M. aculeatus; (49) M. amicorum; (50) M. atedius; (51) M. atlanticus, ex. Cupressus atlantica, Morocco; (52) M. bipunctatus; (53) M. brevicaudis; (54) M. milleri; (55) M. nigrovariegatus; (56) M. pictus; (57) M. pinsapinis; (58) M. pinus; (59) M. pistaciae. Same origins as in (11–22). Scale bars=100 mm, except for (58)=50 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 32–39. Male antenna of Megastigmus. (32) M. aculeatus, France; (33) M. amicorum, Portugal; (34) M. atedius, France; (35) M. bipunctatus, France; (36) M. milleri, the Netherlands; (37) M. pictus, Poland; (38) M. pinus, France; (39) M. pistaciae, Italy. Scale bar=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 22–31. Female antenna of Megastigmus. (22) M. pistaciae, Croatia; (23) M. rafni, France; (24) M. rosae, France; (25) M. schimitscheki, Lebanon; (26) M. specularis, Finland; (27) M. spermotrophus, France; (28) M. strobilobius, Poland; (29) M. suspectus, France; (30) M. transvaalensis, Morocco; (31) M. wachtli, Greece. Scale bar=200 mm.
F in Seed-infesting chalcids of the genus Megastigmus Dalman, 1820 (Hymenoptera: Torymidae) native and introduced to the West Palearctic region: taxonomy, host specificity and distribution
F 69–77. Male stigma of Megastigmus seed chalcids. (69) M. aculeatus; (70) M. amicorum; (71) M. atedius; (72) M. bipunctatus; (73) M. milleri; (74) M. nigrovariegatus, France; (75) M. pictus; (76) M. pinsapinis, Mt Ventoux, France; (77) M. pinus. Same origins as in (32–38). Scale bars=100 mm, except for (70)=200 mm.
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