Morphology and histology of the antenna of the male eastern spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae)

1973 ◽  
Vol 51 (4) ◽  
pp. 443-448 ◽  
Author(s):  
P. J. Albert ◽  
W. D. Seabrook
Keyword(s):  
Electron Microscopy ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Histological Techniques ◽  
Male Antenna ◽  
Sensilla Trichodea ◽  
Female Antenna ◽  
Eastern Spruce Budworm ◽  
Sensilla Styloconica ◽  
Scanning Electron

The number and distribution and the morphology of the various receptors on the male antenna of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae), are described, using histological techniques and scanning electron microscopy. Receptors described include Böhm bristles, four types of sensilla trichodea, sensilla chaetica, sensilla coeloconica, and sensilla styloconica. Except for the sensilla chaetica, generally more receptors are found on the male than on the female antenna.

Morphology and innervation of mouthpart sensilla in larvae of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae)

1980 ◽  
Vol 58 (5) ◽  
pp. 842-851 ◽  
Author(s):  
P. J. Albert
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Methylene Blue ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Maxillary Palp ◽  
Labial Palp ◽  
Gustatory Sensilla ◽  
Scanning Electron

The structure and innervation as determined by methylene blue techniques of the sensilla of the maxillary palp, galea, mandible, labrum, and labial palp of the spruce budworm larva are described, based on light and scanning electron microscopy. An attempt is made to identify the function of various sensilla by comparing them with those of other insects. The function of the gustatory sensilla on the galea and epipharynx is confirmed electrophysiologically.

scholarly journals Morphology and Distribution of the Antennal Sensilla of Two Species, Megalurothrips usitatus and Thrips palmi (Thysanoptera: Thripidae)

Insects ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 251 ◽  
Author(s):  
Xiao-Shuang Wang ◽  
Ali Shaukat ◽  
Yun Han ◽  
Bo Yang ◽  
Liang-De Tang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Chemical Communication ◽  
Antennal Sensilla ◽  
Sensilla Basiconica ◽  
Sensilla Trichodea ◽  
Sensilla Styloconica ◽  
Thrips Palmi ◽  
Scanning Electron

The morphology and distribution of the antennal sensilla of Megalurothrips usitatus Bagnall and Thrips palmi Karny were examined using scanning electron microscopy (SEM). These are serious pests of various economically important crops, and their antennae are important in chemical communication. The antennae of both species consist of a scape, pedicel, and flagellum, but the flagellum of M. usitatus is made up of six sub-segments, whereas that of T. palmi consists of five sub-segments. Seven morphological sensilla types, including Böhm bristle (BB), sensilla campaniformia (Sca), three types of sensilla basiconica (Sb1, Sb2 and Sb3), two types of sensilla chaetica (Sch1 and Sch2), sensilla styloconica (Sst), sensilla trichodea (St), and sensilla cavity (Scav), were recorded in both species. The scape and pedicels exhibited Sch1, BB and Sca. The flagellum exhibited two types of Sch, three types of Sb, St, Sst and Scav. Based on these results, the putative function of the sensilla of M. usitatus and T. palmi are also discussed.

Studies of physiologically active arthropod secretions. IV. Topography of the sex pheromone producing gland of the eastern spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae)

1970 ◽  
Vol 48 (3) ◽  
pp. 569-571 ◽  
Author(s):  
J. Weatherston ◽  
J. E. Percy
Keyword(s):  
Electron Microscope ◽  
Sex Pheromone ◽  
Scanning Electron Microscope ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Eastern Spruce Budworm ◽  
Scanning Electron

By use of the scanning electron microscope, the sex pheromone producing gland of the eastern spruce budworm, Choristoneura fumiferana (Clem.), was studied in relation to the mode of release of the pheromone.

MORPHOLOGICAL INVESTIGATIONS ON THE TARSAL RECEPTORS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE)

1972 ◽  
Vol 104 (12) ◽  
pp. 1931-1935 ◽  
Author(s):  
B. K. Mitchell ◽  
W. D. Seabrook
Keyword(s):  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Histological Techniques ◽  
Sensory Hairs ◽  
Electron Microscopical ◽  
Scanning Electron ◽  
Morphological Investigations

AbstractTwo types of sensory hairs on the tarsus of the spruce budworm, Choristoneura fumiferana (Clem.), are described using scanning electron microscopical and histological techniques.

FACTORS AFFECTING ADULT EMERGENCE AND MATING BEHAVIOR OF THE EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE)

1975 ◽  
Vol 107 (9) ◽  
pp. 967-977 ◽  
Author(s):  
C. J. Sanders
Keyword(s):  
Field Experiments ◽  
Choristoneura Fumiferana ◽  
Adult Emergence ◽  
Spruce Budworm ◽  
Field Conditions ◽  
Continuous Illumination ◽  
Degree Days ◽  
Factors Affecting ◽  
Eastern Spruce Budworm ◽  
Duration Of Copulation

AbstractLaboratory and field experiments indicate that the female spruce budworm (Choristoneura fumiferana (Clem.)) pupal stadium requires approximately 122C degree-days above a threshold of 7.2 °C (45°F), the male 124. Emergence time on any given day depends on temperature but is independent of photoperiod. Under field conditions male and female budworm mate only once per 24-h period. In the laboratory under continuous illumination females mate repeatedly and males readily mate a second time within a few hours, but the duration of the second copulation is abnormally long. The probability of multiple matings under field conditions is reduced by the restricted period of sexual activity coupled with the duration of copulation and the lower competitiveness of mated insects. Antennae are essential to the male for successful copulation.

A METHOD FOR REARING THE LARVAL STAGES OF THE EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA CLEMENS (LEPIDOPTERA: TORTRICIDAE), FOR PHYSIOLOGICAL STUDIES

1990 ◽  
Vol 122 (6) ◽  
pp. 1271-1272 ◽  
Author(s):  
Hemendra Mulye ◽  
Roger Gordon
Keyword(s):  
Population Dynamics ◽  
North America ◽  
Choristoneura Fumiferana ◽  
Insect Pest ◽  
Spruce Budworm ◽  
Forest Pest ◽  
Forest Insect ◽  
Larval Stages ◽  
Eastern Spruce Budworm ◽  
Physiological Studies

The eastern spruce budworm, Choristoneura fumiferana Clemens, is the most widely distributed and destructive forest insect pest in North America. Although much is known about the ecology, population dynamics, and impact of C. fumiferana on tree growth (Sanders et al. 1985), there is very little information available on the physiology of this forest pest. Physiological studies are crucial to the development of novel strategies for spruce budworm control.

scholarly journals Documentation and validation of chemosensory structures in antennae of Spodoptera litura (Fabricius) through Scanning Electron Microscope (SEM)

2019 ◽  
Author(s):  
R. Aruna ◽  
S. Jeyarani ◽  
S. Mohankumar ◽  
C. Durairaj
Keyword(s):  
Spodoptera Litura ◽  
Distal Portion ◽  
Apical Segment ◽  
Middle Region ◽  
Sensilla Basiconica ◽  
Male Antenna ◽  
Sensilla Trichodea ◽  
Sensillum Styloconicum ◽  
Typical Shape ◽  
Scanning Electron

The studies with SEM clearly depicted that the antenna of female was longer than male antenna. Five types of sensilla namely trichodea, chaetica, styloconica, coeloconica and auricillica, and scales were observed on the flagellum of both sexes. Sensilla trichodea were distributed randomly on all segments and were the most frequent type. Six sensilla chaetica were observed on each flagellar segment in both sexes, except in the apical segment. A sensillum styloconicum was always found at the upper-middle region of each flagellar subsegment. This sensillum had a smooth petiole and a conic extremity with one to three apical structures. Sensilla coeloconica were situated from middle to the distal portion of segment. Sensilla auricillica were found among the scales and had the typical shape of rabbit’s ear. Sensilla squamiformia were present on dorsal part of the antenna among scales. They were shorter and finer than scales and were embedded in a socket and point distally. Sensilla basiconica were smaller and least abundant of all sensilla.

Antennal Sensilla of Chrysis shanghalensis (Hymenoptera: Chrysididae), a Larval Ectoparasite of Monema flavescens (Lepidoptera: Limacodidae)

2021 ◽  
Vol 56 (1) ◽  
pp. 1-11
Author(s):  
Shu Z. Yang ◽  
Mei H. Yang ◽  
Yun Xu ◽  
Jin T. Zhang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Natural Enemy ◽  
Tree Species ◽  
External Morphology ◽  
Antennal Sensilla ◽  
Sensilla Basiconica ◽  
Sensilla Trichodea ◽  
Males And Females ◽  
Scanning Electron

Abstract Chrysis shanghalensis Smith (Hymenoptera: Chrysididae) is an ectoparasitoid and important natural enemy of Monema flavescens Walker (Lepidoptera: Limacodidae), a serious defoliator of a number of tree species. The external morphology of the antennal sensilla of this parasitoid was examined by scanning electron microscopy, and types and distribution of sensilla were recorded. The antennae of C. shanghalensis were geniculate in shape and composed of a scape with radicula, a pedicel, and a flagellum divided into 11 flagellomeres in males and females. Cuticular pore and 14 types of sensilla were identified on the antennae of both sexes. These included aporous Böhm's bristles, sensilla trichodea 1, 2, and 3 (nonporous), sensilla trichodea 4 (multiporous), two types of sensilla chaetica (nonporous), four morphological types of sensilla basiconica (multiporous), two morphological types of sensilla coeloconica (multiporous), and one type of sensillum campaniforme (nonporous).

scholarly journals The foregut of the Mysida (Crustacea, Peracarida) and its phylogenetic relevance

1998 ◽  
Vol 353 (1368) ◽  
pp. 559-581 ◽  
Author(s):  
Wulf Kobusch
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Histological Techniques ◽  
Ground Pattern ◽  
Neomysis Integer ◽  
Probable Function ◽  
Mesopodopsis Slabberi ◽  
Scanning Electron

The foreguts of the mysids Antarctomysis maxima , A. ohlinii , Hansenomysis antarctica , Heteromysis formosa , Mesopodopsis slabberi , Neomysis integer , Paramysis kessleri , Praunus flexuosus , and Siriella jaltensis were examined by maceration methods, histological techniques, and scanning electron microscopy. Their morphology, their connection with the midgut glands, and probable function are described and summarized. Previous stomach investigations on mysids and the results of the present study are tabulated; a list of foregut characters, common to all Mysida, is presented. The phylogenetic relevance of these characters within the Malacostraca, especially within the Peracarida, is discussed. Most features are inherited from the ground pattern of the Malacostraca or Eumalacostraca. The bulbous cardia with its dorsal fold, the armature of the lateralia, and the construction of the funnel region are apomorphies for the Mysida. The results suggest that characters of mysidan and other peracaridan foreguts might also be useful in the elucidation of the phylogeny of the Mysida and Peracarida, respectively.

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