First report of Colotis amata (Lepidoptera: Pieridae) on Salvadora persica (Capparales: Salvadoraceae) in Rajasthan, India: incidence and morphometric analysis
Keywords:
small salmon Arab, pilu, morphometric charactersAbstract
An infestation of the small salmon Arab, Colotis amata (F.) (Lepidoptera: Pieridae), on pilu (Salvadora persica L.; Capparales: Salvadoraceae) plants was first noticed in 2012 at the Experimental Farm of the Central Institute for Arid Horticulture and other fields of Bikaner District, Rajasthan, India. The maximum incidence (80%) was observed on 18 Dec and the minimum (13%) on 4 Sep. The average numbers of insects ranged between 6.2 and 22.3 larvae per 3 leaves. Adults of this small butterfly were salmon-pink in color. Eggs were laid singly on leaves or young shoots and were 0.58–0.72 mm in length, 0.38–0.43 mm in width, and white in color when first laid, later developing red blotches. The length and width of 1st instar larvae were 1.98–2.29 mm and 0.36–0.48 mm, respectively. The lengths of 2nd, 3rd, and 4th instars were 5.04 mm, 9.77 mm, and 14.27 mm, respectively. The 5th instars were 19.30 mm long and 3.33 mm wide. Pupae were 14.10 mm long and 5.73 mm wide and laterally compressed. Adults were salmon-pink in color, and females had a body length of 9.71 mm and a wingspan of 33.62 mm. Bodies of males were 7.59 mm long and their wingspan measured 25.67 mm. The lengths of male and female antennae were 4.63 mm and 5.46 mm, respectively.
Resumen
Se observó por primera vez en 2012 una infestación de la pequeña salmón árabe, Colotis amata (F.) (Lepidoptera: Pieridae), sobre plantas de Pilu (Salvadora persica L .; Capparales: Salvadoraceae) en la Granja Experimental del Instituto Central para Zonas Áridas y Horticultura otros campos de Bikaner Distrito, Rajasthan, India. La incidencia máxima (80%) fue observada en el 18 de diciembre y el mínimo (13%) en el 04 de septiembre. El promedio del número de insectos vario entre 6.2 y 22.3 larvas por 3 hojas. Los adultos de esta pequeña mariposa son amarillos y de color blanco. Los huevos se ponen individualmente en las hojas o brotes jóvenes y fueron 0.58 a 0.72 mm de longitud, 0.38-0.43 mm de ancho, y de color blanco cuando acaban de ser puestos y luego desarrollan manchas rojas. La longitud y anchura de las larvas del primer instar fueron 1.98 a 2.29 mm y 0.36 a 0.48 mm, respectivamente. La longitud de las larvas del segundo, tercero y cuarto instar fuer 5.04 mm, 9.77 mm y 14.27 mm, respectivamente. Las larvas del quinto estadio fueron 19.30 mm de longitud y 3.33 mm de ancho. Las pupas fueron 14.10 mm de longitud y 5.73 mm de ancho y comprimido lateralmente. Los adultos fueron del color rosa-salmón y las hembras tenían una longitud de 9.71 mm y una envergadura de 33.62 mm. El cuerpo de los machos fue 7.59 mm de largo y su envergadura mide 25.67 mm. La longitud de las antenas masculinos y femeninos fueron 4.63 mm y 5.46 mm, respectivamente.
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