摘要:

Abstract.The orientation of adults of the myiasis speciesWohlfahrtia magnifiedandLucilia sericatato artificial visual stimuli (cloth targets) and olfactory stimuli (‘swormlure‐4’, a potent screwworm attractant), was studied in sheep pastures near to Sarbogard in Hungary. Experiments with odour‐baited cloth targets, enclosed in electrocuting grids, demonstrated that colour was an important factor influencing catches on targets: a black target caught most flies of both species, with other colours in the following order of effectiveness, blue>white>yellow.Wohlfahrtia magnifieddid not respond to swormlure‐4 in the strong manner thatL. sericatadid. The sex ratios ofW. magnificacaught on targets (67.2% males) and hand‐netted from fence posts (68.8% males) were similar and biased towards males, whereas that ofL. sericataon targets was strongly biased towards females (15.6% males), indicating a fundamental difference in the response of these two myiasis species towards the swormlure‐baited targets. The orientation of these two species towards hosts was also recorded together with that of a third species,Phormia regina. Electric nets placed beside infested sheep caught significantly more flies of all three species than those placed beside uninfested sheep or in the absence of sheep. The sex ratio ofW. magnifiedcaught around infested sheep was the reverse of that on targets, with 68.5% females.Wohlfahrtia magnificaresponded more strongly to healthy, uninfested sheep than didL. sericataandP. regina. The potential for use of targets both for population monitoring and control

ISSN:0269-283X    

DOI:10.1111/j.1365-2915.1995.tb00120.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

Abstract.Cuticular sensilla on newly hatched larvae ofGasterophilus intestinalisDe Geer (Diptera: Gasterophilidae) andOestrus ovis(L.) were studied by scanning electron microscopy. Two types of trichoid sensilla, two types of coeloconic sensilla and a pit sensillum were present on the thoracic and abdominal segments ofG. intestinalislarvae. Sensilla on larvae ofO. oviswere similar although only one type of trichoid sensillum was present. Total number of sensilla were higher forO. ovisthan forG. intestinalis(248v. 214). Variation in numbers of sensilla is consistent with the concept that increasing numbers of sensilla are associated with increasingly complex searching behaviour required to locate suitable habitats for development.

ISSN:0269-283X    

DOI:10.1111/j.1365-2915.1995.tb00121.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0269-283X    

DOI:10.1111/j.1365-2915.1995.tb00122.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0269-283X    

DOI:10.1111/j.1365-2915.1995.tb00123.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0269-283X    

DOI:10.1111/j.1365-2915.1995.tb00124.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY