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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Biometric discrimination of the larval instars and sexes of maladera matrida (coleoptera: scarabaeidae: melolonthinae)
Year:
1996
Source of publication :
Israel Journal of Entomology
Authors :
בן-יקיר, דוד
;
.
הררי, אלי
;
.
קורן, ל'
;
.
Volume :
30
Co-Authors:
Ben-Yakir, D., Department of Entomology, Institute of Plant Protection, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Koren, L., Department of Entomology, Institute of Plant Protection, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Harari, A.R., Department of Entomology, Hebrew University of Jerusalem, Faculty of Agriculture, P.O. Box 12, Rehovot 76100, Israel
Facilitators :
From page:
47
To page:
52
(
Total pages:
6
)
Abstract:
Maladera matrida Argaman was first reported from Israel in the late 1970's and was subsequently described as a new species. Shortly thereafter, this species has become a serious pest of ornamental plants and agricultural crops. In this study we identified external anatomical features for distinguishing between the three larval instars and between the two sexes of pupae and adults collected in the field. Larval instars may be divided as follows: first instar, head width less than 1.8 mm; second instar, head width above 1.9 mm and ratio of body length to head width below 3; and third instar, body length above 9 mm. Male pupae may easily be recognized by an ampulla covering the developing genitalia on the posteroventral abdominal segments. Males usually had longer antennal laminae (mean = 823 μm, range 750-900 μm) than females (mean = 704 μm, range of 570-790 μm); however, in about 10% of the beetles this length overlapped between the sexes (range 750-790 μm).
Note:
Related Files :
Biometrics
Coleoptera
insects
Maladera matrida
morphology
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22125
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:49
Scientific Publication
Biometric discrimination of the larval instars and sexes of maladera matrida (coleoptera: scarabaeidae: melolonthinae)
30
Ben-Yakir, D., Department of Entomology, Institute of Plant Protection, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Koren, L., Department of Entomology, Institute of Plant Protection, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Harari, A.R., Department of Entomology, Hebrew University of Jerusalem, Faculty of Agriculture, P.O. Box 12, Rehovot 76100, Israel
Biometric discrimination of the larval instars and sexes of maladera matrida (coleoptera: scarabaeidae: melolonthinae)
Maladera matrida Argaman was first reported from Israel in the late 1970's and was subsequently described as a new species. Shortly thereafter, this species has become a serious pest of ornamental plants and agricultural crops. In this study we identified external anatomical features for distinguishing between the three larval instars and between the two sexes of pupae and adults collected in the field. Larval instars may be divided as follows: first instar, head width less than 1.8 mm; second instar, head width above 1.9 mm and ratio of body length to head width below 3; and third instar, body length above 9 mm. Male pupae may easily be recognized by an ampulla covering the developing genitalia on the posteroventral abdominal segments. Males usually had longer antennal laminae (mean = 823 μm, range 750-900 μm) than females (mean = 704 μm, range of 570-790 μm); however, in about 10% of the beetles this length overlapped between the sexes (range 750-790 μm).
Scientific Publication
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