TY  - JOUR
A1  - Gnatzy, Werner
A1  - Jatho, Martin
T1  - Die Sensillen auf den Antennen der Grabwespe Liris niger (Hymenoptera, Sphecidae)
T1  - The flagellar sensilla of the digger wasp Liris niger (Hymenoptera: Sphecidae)
T2  - Mitteilungen der Deutschen Gesellschaft für Allgemeine und Angewandte Entomologie
N2  - Im Vergleich zu der Vielzahl von Einzeluntersuchungen liegen nur für wenige Insektenarten (z.B. Manduca sexta: SHIELDS & HILDEBRANDT 1999 a, b; Drosophila: SHANBHAG et al. 1999, 2000) detaillierte Befunde zur Feinstruktur, Zahl und Topographie antennaler Sensillen vor. Die jetzt an Liris niger gewonnenen Daten bilden, zusammen mit solchen früherer Untersuchungen (GNATZY 1996, 2001; ANTON & GNATZY 1998; GNATZY & FERBER 1999) die Basis für derzeit laufende immuncytochemische und elektrophysiologische Arbeiten insbesondere am olfaktorischen System dieser solitären Grabwespenart. Dabei gilt unser Interesse dem ausgeprägten Sexualdimorphismus im antennalen Sensilleninventar, wie er im Verlauf dieser Untersuchungen nachgewiesen werden konnte.
N2  - As in other parasitoid hymenoptera, the antennae of females of Liris niger play a key role in prey recognition. Furthermore the antennae are important for intraspecific communication. Using scanning and transmission electron microscopy both sexes of L. niger were examined. The antennae show sexual dimorphism in structure: 10 flagellomeres in females, 11 in males. Both sexes bear eight morphological types of sensilla: three types of s. trichodea, one type of s. basiconicum, placodeum, ampullaceum, coeloconicum and coelocapitulum, respectively. The number and distribution of the antennal sensilla is remarkably different in both sexes. Typical arrangement of all sensilla types is existent on flagellomeres 4 to 9 in females and 4 to 10 in males, respectively. On the dorsal surface of such a flagellomer in females, only s. basiconica, s. trichodea type 1 (mechanosensory) and s. trichodea type 2 (gustatory) are located; the remainning surface is dominated by s. placodea (olfactory). At the border between s. placodea and s. basiconica / s. trichodea type 2 a group of s. ampullacea can be found. Somewhat more ventrally on the inner sidewall of the flagellomeres, a field of s. coelocapitula is located. On the ventral surface approximately in the middle of the flagellomer (4th to 9th segment) a marked-off field of s. trichodea type 3 (olfactory) exists. The number of sensilla within this field increases from the 4th to the 9th segment (they are absent on flagellomer 1 to 3 and 10). About 3-5 s. coeloconica can be found on the ventral region of flagellomeres 2-10. The most proximal flagellomer displays only a small number of s. coeloconica. In males the dorsal surface of the flagellomeres (2 to 11) exhibits exclusively about 18.000 s. trichodea type 3 (olfactory). In this region also trichoms are absent. Subsequent to these s. trichodea type 3, s. placodea are expressed on the sidewalls of the flagellomeres together with s. ampullacea, s. coelocapitula, and s. coeloconica. The ventral surface is dominated by s. basiconica and s. trichodea type 2.
KW  - antennale Sensillen
KW  - Feinstruktur
KW  - Anzahl
KW  - Verteilung
KW  - flagellar sensilla
KW  - fine structure
KW  - number
KW  - distribution
Y1  - 2006
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/5723
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-56125
SN  - 0344-9084
VL  - 15
SP  - 417
EP  - 420
PB  - Deutsche Gesellschaft für Allgemeine und Angewandte Entomologie
CY  - Gießen
ER  -