External morphology of antennal sensilla of four species of adult flea beetles (Coleoptera : chrysomelidae : alticinae)

Ultrastructure Alterations in the Red Palm Weevil Antennal Sensilla Induced By Gamma Irradiation

“…In the ground beetle, Platynus dorsalis, it might indicate that these sensilla probably respond to aggregation pheromone (Merivee et al, 2001). Sensilla similar in external morphology to the sensilla trichodea 3 on R. Ferrugineus are found on other alticinid species (Ritcey & McIver, 1990). The short sensilla trichodea, recorded from Synempora by Davis & Nielsen (1980) are in fact microtrichia, which are very frequently found on flagellomeres.…”

“…They are classified, for example, as sensilla trichodea type I in Carabus fiduciaries saishutoicus (Carabidae) (Kim & Yamasaki, 1996), and flea beetles (Alticidae) (Ritcey & McIver, 1990).…”

Low‐vacuum electron microscopy of carabid chemoreceptors: a new tool for the identification of live and valuable museum specimens

“…Previous studies have used receptor counts as a means of separating species and populations (Ritcey & McIver, 1990;Faucheux, 1989Faucheux, , 1994Catala & Schofield, 1994), and it may be that this method could be applied to the carabids studied. By using live, anaesthetised beetles, the membranous tips remain inflated, permitting a detailed examination of the sensilla.…”

Natural history of the flea beetle genus Arrhenocoela Foudras (Coleoptera, Chrysomelidae, Alticinae)

“…Antennomere cylindrical, with strongly sclerified annular ring with five sensorial pores (two dorsal and three ventral); upper side membranose, with a big conical sensory papilla basally slightly raised, with nine basiconic sensilla different in shape and size; three long basiconic sensilla (cf. Ritcey & Mclver, 1990;Bartlet et al, 1999) of which two longer, more thin, distally pointed, slightly curved; one peg-like sensilla, finger-shaped; six short basiconic sensilla of which three longer, cone-shaped, raised from bulbous base, and three very small, dentiform. Epicranium posteriorly with four pairs of minute trichoid sensilla and two pairs of sensorial pores; dorsally with four pairs of filiform setae, one pair of small setae, two pairs of sensorial pores and one pair of cupuliform ocelli in postero-lateral position to the antennae; lateroventrally with four pairs of filiform setae and one pair of sensorial pores; posterior epicranial margin arcuate.…”

“…Palpiferi ellyptical, with two long setae. Maxillary palpi (Figs 26-27, 42E) three-segmented; segments 1-2 subcylindrical, segment 3 elongate, stumped, with the apical part membranose, with ten small cone-shaped sensorial structures: nine arranged in a circle and one central (similar to the short basiconic sensilla III type of Ritcey & Mclver, 1990, but not arising from a raised bulbous base). Basal segment with two sensorial pores; middle segment with one sensorial pore and two setae; apical segment with one large placoid sensillum, one lateral external long basiconic sensillum and one lateral inner small seta.…”