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Behavioural response of Triatoma infestans (Klug) (Hemiptera: Reduviidae) to quinazolines
R A Alzogaray1, A Fontán, F Camps
1Centro de Investigaciones de Plagas e Insecticidas (CIPEIN-CITEFA/CONICET), J.B. de La Salle 4397, (1603) Villa Martelli, Prov. de Buenos Aires, Argentina.
Abstract:
The behavioural responses of the haematophagous bug Triatoma infestans towards some previously identified components of its faeces: 4-methylquinazoline, 2,4- dimethylquinazoline and their mixtures were evaluated using a video tracking system. Fifth instar nymphs and females but not males were significantly attracted to polyethylene glycol formulations of 4-methyl + 2,4-dimethylquinazoline (50 microg each). Fifth instar nymphs were also attracted to 4-methylquinazoline alone (50 microg) but females were only attracted by the mixture of both methyl quinazolines (50 microg each). Syntheses of both methyl quinazolines were carried out starting from 2-aminoacetophenone by modifying the conditions of reported procedures.
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