STUDIES OF PHYSIOLOGICALLY ACTIVE ARTHROPOD SECRETIONS: I EVIDENCE FOR A SEX PHEROMONE IN FEMALE VITULA EDMANDSAE (LEPIDOPTERA: PHYCITIDAE)

1968 ◽  
Vol 100 (10) ◽  
pp. 1065-1070 ◽  
Author(s):  
J. Weatherston ◽  
J. E. Percy

AbstractEvidence is presented for the presence of a sex attractant in female Vitula edmandsae (Packard). The ability of the virgin female to attract the male varies with age, reaching a maximum 2 days after emergence.The pheromone-producing gland is a ring-shaped structure formed by modification of the epidermal cells in the intersegmental membrane between the eighth and ninth abdominal segments.

1971 ◽  
Vol 103 (5) ◽  
pp. 706-712 ◽  
Author(s):  
Miss J. E. Percy ◽  
Miss E. J. Gardiner ◽  
J. Weatherston

AbstractThe results of behavioural, chemical, and histological studies are reported showing the presence of a sex attractant in female Orgyia leucostigma J. E. Smith. A method of bioassaying the attractancy of the female moths by the use of 4-ft-long glass tubes is given. Extraction of female abdominal tips with dichloromethane yields material biologically active when tested against male O. leucostigma.The pheromone-producing gland is a dorsally situated, crescent-shaped structure formed by modification of the epidermal cells in the intersegmental membrane between the eighth and ninth abdominal segments. The glandular cells are goblet-shaped and are arranged in an unusual manner.


1981 ◽  
Vol 36 (1-2) ◽  
pp. 178-179 ◽  
Author(s):  
M. H. Benn ◽  
R. A. Galbreath ◽  
V. A. Holt ◽  
H. Young

Abstract Traps baited with approx. 2:1 mixtures of (E)-, and (Z)-11-tetradecenyl acetates caught male Sperchia intrac­tana Walker in the field. Analyses of extracts obtained from virgin female moths revealed the presence of these two compounds, which are presumably the major components of the sex pheromone.


1974 ◽  
Vol 106 (3) ◽  
pp. 281-284 ◽  
Author(s):  
J. Weatherston ◽  
W. Maclean

AbstractThe sex-pheromone-producing gland of the eastern spruce budworm, in addition to producing the sex attractant (E)-11-tetradecenal, has been shown by gas chromatographic and mass spectral data to contain (E)-11-tetradecen-1-ol, a known inhibitor to the sex attractant.


1975 ◽  
Vol 30 (9-10) ◽  
pp. 672-675 ◽  
Author(s):  
B. A. Bierl ◽  
Morton Beroza ◽  
V. E. Adler ◽  
G. Kasang ◽  
D. Schneider ◽  
...  

Disparlure, (cis-7,8-epoxy-2-methyloctadecane) the sex attractant of the gypsy moth, Porthetria (Lymantria) dispar, attracts the male nun moth, Lymantria monacha, in the field and is a highly effective olfactory stimulus in electroantennogram (EAG) and single-cell recordings. We have now analyzed the extract of 2000 abdominal tips of the female nun moth. Physical and chemical tests, which included gas-chromatographic retention times, elution volumes from silica gel and silica gel-silver nitrate columns, mass spectra, epoxide functionality, EAG-activity of chromatographic fractions with gypsy moth antennae, presence of disparlure precursor, all indicated that disparlure is present in the extract of nun moth sex glands. The optical activity of the natural disparlure of the two species has not yet been determined. Several authors have reported 1-0 that disparlure,


2000 ◽  
Vol 35 (2) ◽  
pp. 158-166 ◽  
Author(s):  
Jerome A. Klun ◽  
Yuri N. Baranchikov ◽  
Victor C. Mastro ◽  
Yousef Hijji ◽  
Jesse Nicholson ◽  
...  

Field trapping experiments were conducted against the Siberian moth, Dendrolimus superans sibiricus Butler, in Siberia, Russia, using traps baited with a virgin female moth or 100 μg synthetic mixtures of C12 straight chain-length aldehydes, alcohols, and acetates alone or in combinations on rubber septa. Traps baited with a 1:1 blend of aldehydes and alcohols captured many males. The capture rate was similar to the rate of capture seen in traps baited with virgin females. The mixture of aldehydes and alcohols (64% Z,E-5,7-dodecadienal, 10% Z-5-dodecenal, 18% E-7-dodecenal, 8% E-6-dodecenal) and (64% Z,E-5,7-dodecadien-1-ol, 10% Z-5-dodecen-1-ol, 18% E-7-dodecen-1-ol, 8% E-6-dodecen-1-ol) can be used as a sex attractant to monitor endemic Siberian moth populations in Asia, and for surveillance and detection of the moth in countries where the insect might be accidentally introduced.


1978 ◽  
Vol 56 (2) ◽  
pp. 238-245 ◽  
Author(s):  
Jean Percy

In female Trichoplusia ni, granular haemocytes are observed near the basement membrane of developing sex pheromone gland cells while plasmatocytes are observed near the basement membrane of unmodified epidermal cells. The basement membrane underlying gland cells is clearly different from that of other epidermal cells. There is a thin amorphous layer (layer 1) which is also present beneath unmodified cells, and a second layer (layer 2) apposing the haemocytes. Layer 2 is distinctly banded which results from tubules similar in dimensions and structural appearance to those observed within granules of the granular haemocytes. The observations indicate that the granules participate in the formation of layer 2 by emptying their contents into the haemocoel next to layer 1.


1973 ◽  
Vol 4 (1) ◽  
pp. 78-80 ◽  
Author(s):  
Åke Borg

AbstractElaterids of the species Agriotes lineatus (L.), which were collected in heap-traps (at Stenum, Skara, West Sweden) during the period May 9-24, I972, were sorted according to sex. The abdomens of the males and females respectively were crushed in 95 % ethyl alcohol for the extraction of possible pheromones. The unfiltered fluid was tested in pitfall traps placed in a field of oats. During the period May II - July 3, I70 A. lineartus were obtained of which I62 were males. The majority of these were caught in the traps baited with female extract. The male extract caused no response. The female extract must therefore have contained a sex pheromone which attracted males of the same species.


2013 ◽  
Vol 145 (4) ◽  
pp. 389-397 ◽  
Author(s):  
Robert L. Brown ◽  
Ashraf M. El-Sayed ◽  
David Maxwell Suckling ◽  
Lloyd D. Stringer ◽  
Jacqueline R. Beggs

AbstractSex attraction studies were carried out to investigate the mate-finding behaviour of invasiveVespula vulgaris(Linnaeus) (Hymenoptera: Vespidae) wasps. Delta traps were baited with live, caged males, and gynes (virgin queens) ofV. vulgaristo determine whether either sex produced a long-range sex attractant. Traps baited with gynes caught 71 males, while the controls and live-male wasp baited traps did not catch gynes. Wind tunnel trials were performed to verify if the signal produced by the gynes was chemical in nature. First,V. vulgarismales were flown to live caged gynes, where more than half of the males tested flew upwind in a zigzagging pattern and made contact with caged gynes. Males were also flown to hexane rinses of gynes and flew upwind in a zigzagging pattern towards the gyne extract, although none made contact with the cotton roll stimulus. The results presented here demonstrate conclusively thatV. vulgarisgynes produce a sex pheromone.


1991 ◽  
Vol 123 (6) ◽  
pp. 1391-1394 ◽  
Author(s):  
H. McBrien ◽  
G. Gries ◽  
R. Gries ◽  
J.H. Borden ◽  
G.J.R. Judd ◽  
...  

AbstractZ8-tetradecenyl acetate (Z8-14OAc andZ8-tetradecenyl alcohol (Z8-14OH) were identified as sex pheromone components of the eyespotted bud moth, Spilonota ocellana (Denis and Schiffermüller) (Lepidoptera: Olethreutidae). Compounds were identified by gas chrornatographic-eleclroantennographic (GC-EAD) and GC-mass spectroscopic analyses and field tested in apple orchards in the Okanagan Valley, B.C. Although Z8-14OAc alone was attractive to male S. ocellana, the addition of 1–5% Z8-14OH strongly synergized its attraction. Field tests comparing the attractiveness of virgin female S. ocellana with various doses of a 99:1 blend of Z8-14OAc and Z8-14OH indicated the natural sex pheromone has only two significant components. A 99:1 blend of Z8-14OAC and Z8-14OH is suggested for monitoring and control of S. ocellana populations in British Columbia.


1965 ◽  
Vol 97 (9) ◽  
pp. 1002-1007 ◽  
Author(s):  
J. A. George

AbstractThe existence of a chemical female sex pheromone in the Oriental fruit moth has been demonstrated; it both attracts and sexually excites adult males. Males without antennae are neither attracted to, nor sexually stimulated by, the pheromone. Thus, the pheromone appears to be essential for reproduction. Active pheromone can be extracted with benzene from the tips of virgin female abdomens and bioassayed with males. The gland believed to produce the pheromone was located and examined histologically. It is now possible to investigate the chemical nature of the pheromone and its possible use in the control of the Oriental fruit moth.


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