• Applied Microscopy
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• v.31 no.1
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• pp.91-99
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• 2001

The antennal sensilla of the adult male and female ladybird beetle, Harmonia axyridis (Coleoptera: Coccinellidae) were examined by scanning electron microscopy. Nine types of sensilla were characterized and grouped into 5 morphological classes: $B\ddot{o}hm$, basiconic, chetiform, coeloconlc, and trichoid sensilla. $B\ddot{o}hm$ sensilla were localized on the scape and pedicel, part of the ventral and dorsal proximal side. This placement suggests a role in proportion of antennal position and movement. Basiconic and chetiform sensilla were divided into 3 subtypes by morphology and length differences. Trichoid sensilla are confined to the last 2 flagellum segments on both sexes. Sexual dimorphism of antennal sensilla is limited to the three types of difference. The principal characteristics of this dimorphism are the following: a) The distribution of sensilla was differ from male and female in antennae. b) Males exhibit coeloconic sensilla not present in females; c) Females posses more trichoid sensilla than males. The possible role of specific dilference of the sensilla in intersexual communication is discussed.

• Journal of the Korean Wood Science and Technology
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• v.33 no.1 s.129
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• pp.1-6
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• 2005

This research was performed to investigate the expression patterns of odorant-binding proteins (OBPs) migrating hydrophobic semiochemicals such as pheromone to the olfactory receptors in a termite (Reticulitermes speratus). Antennas and legs were cut from soldier and worker termites, respectively, and RT-PCR were conducted to investigate the existence of the OBPs reported up to now. Blast search suggested that the OBPs obtained were highly homologues of the OBPs reported. In worker termites, OBP-1 was expressed in both antennas and legs, OBP-2 and OBP-3 were observed only in antennas. And in soldier termites, OBP-1 was shown in both antennas and legs, OBP-2 were not observed, and OBP-3 was found in both antennas and legs. The differences of expression patterns of OBPs between worker and soldier termites may be explained by their specialized peculiarity.

• Animal Systematics, Evolution and Diversity
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• v.20 no.1
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• pp.1-8
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• 2004

The first zoea of R. uritai is described in detail, based on laboratory-hatched material. The first zoea of R. uritai can be distinguished from that of R. conspiciocellus and R. durbanensis by the rostrum downwards, overreaching distal margin of the outer flagellum of the antenna, the endopod of the antenna with short seta as well as long plumose seta distally, and the scale of the antenna six-segmented. The shape of the telson can be a distinguishing character of the first zoea of Rhynchocinetes from that of Cinetorhynchus.

• Korean journal of applied entomology
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• v.52 no.3
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• pp.249-253
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• 2013

The adzuki pod worm, Matsumuraeses phaseoli (Matsumura) is an insect pest that attacks the flowers and pods of Vigna angularis. The circadian rhythms of eclosion and mating, and the effects of age and antenna ablation on mating success, were investigated. With a photoperiodic regime of 16:8 (Light:Dark) h, most adult eclosion was observed within 4 h after lights-on. Most adult mating was observed during the scotophase, although some occurred within 2 h after lights-on. However, the adults did not copulate on the day of emergence. The mating rate increased with adult age: being higher in the 4-d-old adult pairs than pairs of lower age. Most of the antennectomized males or females did not copulate with normal individuals of the opposite sex.

• Korean journal of applied entomology
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• v.57 no.4
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• pp.279-285
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• 2018

Different English terms indicating a same part in insect head were arranged according to position and function, and their corresponding different Korean terms were suggested. The terms include lines on head surface, head regions of embryo, external and internal skeletons, internal parts of mouth, long mouths, external parts and basic segments of antenna, antennal shapes, and hairs on surface.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2001.05a
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• pp.44-44
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• 2001

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2002.05a
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• pp.130-130
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• 2002

• Korean journal of applied entomology
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• v.49 no.1
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• pp.11-16
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• 2010

Measurements were made on morphology of each developmental stages of the chestnut weevil, Curculio sikkimensis, reared in the laboratory and field from 2003 to 2006. The size of egg was 0.8${\pm}$0.03 mm. The escaping larvae were measured, in average, as 98 mg in body weight, 10.65 and 3.99 mm in body length and width, and 1.70 mm in head width. Pupal size of female and male was 7.01 and 6.53 mm, respectively. The fresh weight (0.343 g), body length (7.76 mm) and width (3.38 mm), and head width (1.60 mm) of female adults were significantly bigger than those (0.268 g, 7.14 mm, 3.01 mm and 1.37 mm, respectively) of male adults. Proboscis length (6.53 mm) and antennal length (5.47 mm) of female was also significantly longer than those (3.56 and 4.63 mm, respectively) of male. The larvae of C. sikkimensis overwintered for 1~3 years and their body weight, body length, and body width were decreased. The ratio between proboscis length and body length, the basipodite position attached to the proboscis, and shape of the sex organ on the abdominal end could be used to discriminate sexes.

• Korean journal of applied entomology
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• v.45 no.2 s.143
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• pp.119-129
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• 2006

The antennal receptors of the adult male and female of the American leafminer, Liriomyza trifolii (Diptera: Agromyzidae) was studied using the scanning electron microscopy. This antennal receptors were developed to accept the chemical or mechanical signal in the environment. The antennae of L. trifolii is 317.52 $\mu$m long and composed of the scape, pedicel, funicle, arista. Antennae located between compounds eye on the middle in the head. The result of SEM observation, four types of receptors were characterized and grouped into morphological classes: Trichoid, Basiconic, Coeloconic, Chetiform sensilla. Trichoid sensilla are located on the all segment. As a rule, female is more than male. This sensilla are long and slender hair with straight or slightly curved, and taper to a sharp point apically. Basiconic sensilla are observed only on the funicle. The number of basiconic sensilla in male and female are almost same in both sexes. This sensilla are long and thick hair with stright or slightly curved, and taper to a blunt point apically. Coeloconic sensilla are observed only on the funicle. This sensilla were showed a finger-like projections the peg apex. The number of basiconic sensilla in male and female are almost same in both sexes. Chetifarm sensilla are located on the all segment. This sensilla are needle-like, tapering sharply. Pedicel are more than scape. The number of Chetiform sensilla in male and female are almost same in both sexes.

• Korean journal of applied entomology
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• v.46 no.2
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• pp.183-191
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• 2007

The external ultrastructural morphology and distribution of antennal sensilla and hair-pencils of Palpita indica (Saunder) were examined by scanning electron microscopy. The antennal flagellum of male and female has six types of sensilla: long trichodea, short trichodesa, chaetica, coeloconicum around spines, camaniformia and styloconica. There are sexual differences in antennae of P. indica. The female antenna has a coeloconicum sensillum without spines nearby the long trichodea sensilla on ninth flagellomere. Otherwise, auricillica sensilla are distribute on the basal segment of male antenna. These structures are not showed in the female antenna. There are a lot of pores on the hair tufts of the male hair-pencils.