02369nas a2200193   4500008004100000020001400041245010800055210006900163260000800232300000900240490000700249520168000256653003001936100001901966700001901985700001802004700002102022856013202043       2012                        eng d  a0015-404000aANTENNAL SENSILLA OF PARTHENOGENETIC AND BISEXUAL LISSORHOPTRUS ORYZOPHILUS (COLEOPTERA: CURCULIONIDAE)0 aANTENNAL SENSILLA OF PARTHENOGENETIC AND BISEXUAL LISSORHOPTRUS   cMar  a8-150 v953 aAntennal sensilla were compared in parthenogenetic females and bisexual adults of rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), using scanning electron micrographs. The antenna of parthenogenetic females and of both sexes of bisexual reproductive weevils consisted of the scape, pedicel, and 6 flagellar segments. Females, regardless of mode of reproduction, had longer antennal segments than males. The 3 adult forms/genders can be correctly classified into their respective groups with a set of discriminant mathematical functions based on 4 morphological measurements of length or maximum width of segments of the antennae. For both sexes, 6 morphological sensilla types were found on the antennae, including hydrofuge scales I (hsI), trichoid sensilla (ts), 2 types of squamiform sensilla (ssI, ssII), tuft hairs (th), and Bohm bristles (Bb). No remarkable sexual differences in the types or distribution of sensilla were found on the antennae among parthenogenetic and both sexes of bisexual reproductive weevils, except for hsI. Both the length and basal diameter of hsI of females were significantly greater than those of the males. The hsI of the parthenogenetic females were significantly longer than those of the bisexual females. The numbers of branches of hsI on the sixth flagellum of the parthenogenetic females were significantly more than on both sexes of bisexual adults. The numbers of branches of hsI of the females were significantly more than those of the males. From the information gained from this scanning electronic microscope study of antennae, we can separate rice water weevils by gender and reproductive mode.10aLissorhoptrus oryzophilus1 aKang, Gui-Juan1 aZhu, Zeng-Rong1 aCheng, Jia-An1 aWay, Michael, O.  uhttps://weevil.myspecies.info/antennal-sensilla-parthenogenetic-and-bisexual-lissorhoptrus-oryzophilus-coleoptera-curculionidae