The preimaginal stages and bionomics of Scythris sinensis (Felder and Rogenhofer, 1875) (Lepidoptera, Scythrididae), a Borer in Chenopodium album L. (Chenopodiaceae)

2021 ◽  
Author(s):  
Attila Takács ◽  
Csaba Szabóky ◽  
Balázs Tóth
Keyword(s):  
Host Plant ◽  
Larval Stage ◽  
Chenopodium Album ◽  
Pupal Stage ◽  
Immature Stages ◽  
Summer Generation ◽  
Preimaginal Stages

AbstractThe bionomics and distribution of Scythris sinensis (Felder and Rogenhofer, 1875) were studied in Hungary from 2004 to 2018. The host plant was found to be Chenopodium album L. The larva feeds on the leaves in a loose web. The length of the larval stage varies from 12 to 15 days, that of the pupal stage from 7 to 10 days of the summer generation. The species is generally bivoltine in Hungary, but in the southern, warmer areas a third partial generation may occur. Adults of the second and third generations have characteristic yellow patches on the forewing. The species overwinters as pupa in a white cocoon near the host plant. The immature stages and the adult are illustrated and a map of the Hungarian records is given with two Figures.

scholarly journals Immature Stages and Life Cycle of the Wasp Moth,Cosmosoma auge(Lepidoptera: Erebidae: Arctiinae) under Laboratory Conditions

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Gunnary León-Finalé ◽  
Alejandro Barro
Keyword(s):  
Life Cycle ◽  
Host Plant ◽  
Pupal Stage ◽  
Immature Stages ◽  
New Host ◽  
Mikania Micrantha ◽  
Larval Stages ◽  
Arctiid Moth ◽  
First Time ◽  
Cuban Population

Cosmosoma auge(Linnaeus 1767) (Lepidoptera: Erebidae) is a Neotropical arctiid moth common in Cuban mountainous areas; however, its life cycle remains unknown. In this work,C. augelife cycle is described for the first time; also, immature stages are described using a Cuban population. Larvae were obtained from gravid wild females caught in Viñales National Park and were fed with fresh leaves of its host plant, the climbing hempweedMikania micranthaKunth (Asterales: Asteraceae), which is a new host plant record. Eggs are hemispherical and hatching occurred five days after laying. Larval period had six instars and lasted between 20 and 22 days. First and last larval stages are easily distinguishable from others. First stage has body covered by chalazae and last stage has body covered by verrucae as other stages but has a tuft on each side of A1 and A7. Eggs and larvae features agree with Arctiinae pattern. Pupal stage lasted eight days, and, in general, females emerge before males as a result of pupal stage duration differences between sexes.

EGG, LARVA, AND PUPA OF LEXIPHANES SAPONATUS (COLEOPTERA: CHRYSOMELIDAE: CRYPTOCEPHALINAE)

1984 ◽  
Vol 116 (4) ◽  
pp. 537-548 ◽  
Author(s):  
Laurent LeSage
Keyword(s):  
Life Cycle ◽  
Host Plant ◽  
Leaf Litter ◽  
Larval Stage ◽  
Warm Season ◽  
Immature Stages ◽  
Human Eye

AbstractThe immature stages of Lexiphanes saponatus (Fabricius) are the first members of Nearctic Cryptocephalinae to be described as well as to be studied. The egg is coated with oblique ornamentations as in other Cryptocephalinae. The larva shows several resemblances with that of the Palearctic genus Suffrianus from which it is distinguished mainly by its large papillate frontal setae. The pupa resembles in general those of Chlamisinae but bears very distinctive projections on the seventh and ninth abdominal segments. The life cycle of L. saponatus is also very interesting. Unlike most other cryptocephaline larvae which live in the leaf litter and are unable to climb on plants, the larva of L. saponatus moves easily on its host plant (Cassandra calyculata) and mimics perfectly the plant buds, becoming almost invisible to the human eye. Although me information is incomplete, it is evident that L. saponatus overwinters in the larval stage, in the first or second instar. It is not known if the larva completes its development during the following warm season or overwinters twice as in other Cryptocephalinae.

The early development of antenna and antennal sensilla in the noctuid moth, Agrotis segetum (Insecta: Lepidoptera)

1990 ◽  
Vol 48 (3) ◽  
pp. 502-503
Author(s):  
Eric Hallberg ◽  
Lina Hansén
Keyword(s):  
Cell Death ◽  
Stem Cell ◽  
Early Development ◽  
Larval Stage ◽  
Pupal Stage ◽  
Agrotis Segetum ◽  
Antennal Sensilla ◽  
Noctuid Moth ◽  
Standard Procedures

The antennal rudiments in lepidopterous insects are present as disks during the larval stage. The tubular double-walled antennal disk is present beneath the larval antenna, and its inner layer gives rise to the adult antenna during the pupal stage. The sensilla develop from a cluster of cells that are derived from one stem cell, which gives rise to both sensory and enveloping cells. During the morphogenesis of the sensillum these cells undergo major transformations, including cell death. In the moth Agrotis segetum the pupal stage lasts about 14 days (temperature, 25°C). The antennae, clearly seen from the exterior, were dissected and fixed according to standard procedures (3 % glutaraldehyde in 0.15 M cacaodylate buffer, followed by 1 % osmiumtetroxide in the same buffer). Pupae from day 1 to day 8, of both sexes were studied.

scholarly journals Biology of Diadiplosis multifila (Diptera: Cecidomyiidae) in Planococcus citri under constant temperatures

2019 ◽  
Vol 10 (3) ◽  
pp. 346-352
Author(s):  
Alexandre Martins Dos Santos ◽  
José Eudes De Morais Oliveira ◽  
Andréa Nunes Moreira de Carvalho ◽  
Martin Duarte De Oliveira ◽  
Carla Patrícia Oliveira de Assis ◽  
...  
Keyword(s):  
Life Cycle ◽  
Sex Ratio ◽  
Larval Stage ◽  
Pupal Stage ◽  
Planococcus Citri ◽  
Egg Viability ◽  
Northeast Region ◽  
Embryonic Period ◽  
Semi Arid ◽  
Total Life

Diadiplosis multifila was recently discovered feeding on Planococcus citri eggs in vineyards in the semi-arid northeast region of Brazil. The objective of the present paper was to study the biology of D. multifila in P. citri under constant temperatures of 22, 25, 28, and 31 °C. We evaluated its embryonic stage, egg viability, development period, survival of larva and pupa, longevity, average number of eggs, and sex ratio. D. multifila completed its life cycle in all temperatures except for 31 °C. The length of the embryonic period ranged from 4 to 7 days. The larval stage was longer at a temperature of 22 °C (8.6 days) and shorter at 28 °C (6.4). The pupal stage exhibited durations of 12.9, 10.4, and 8.2 days for temperatures of 22, 25, and 28 °C, respectively. The average viability in the larval stage was 97% and 83% in the pupal stage. The total life cycle took 16.7 (28 °C), 20 (25 °C), and 27 (22 °C) days to complete. The adults lived for approximately 2 days and the females produced on average 34, 25, and 19 eggs at temperatures of 22, 25, and 28 °C, respectively. The sex ratio varied from 0.46 to 0.54.

Description of immature stages of Phelypera schuppeli (Boheman, 1834) with comments on natural history (Coleoptera: Curculionidae: Hyperinae)

Zootaxa ◽  
2012 ◽  
Vol 3423 (1) ◽  
pp. 45 ◽  
Author(s):  
SERGIO ANTONIO VANIN ◽  
DANIELA DE CASSIA BENÁ ◽  
FABIANO FABIAN ALBERTONI
Keyword(s):  
Natural History ◽  
Host Plant ◽  
Natural Enemies ◽  
Ornamental Plant ◽  
Immature Stages ◽  
Mato Grosso ◽  
Pupal Parasitoid ◽  
Additional Information ◽  
Defensive Behaviors ◽  
Mato Grosso Do Sul

Immatures of the Phelypera schuppeli (Boheman, 1834) (Curculionidae; Hyperinae; Cepurini) are described, illustrated and compared with available descriptions of larvae and pupae of Hyperini. Immatures and adults from midwest (Dourados, Mato Grosso do Sul; Pirenópolis, Goiás) and southeast Brazil (Bauru, São Paulo) were found on leaves of the host plant, Pachira aquatica Aubl. ( Malvaceae, formerly Bombacaceae), a tree used as an ornamental plant in many Brazilian frost-free cities. Larvae of P. schuppeli are exophytic, brightly colored, eruciform and possess abdominal ambulatory ampullae, resembling larvae of Lepidoptera. Mature larvae can spin globular lattice-like cocoons where pupation takes place. Data in the field and under laboratory conditions confirmed previously published biological observations on P. schuppeli. Additional information about defensive behaviors, process of cocoon construction and natural enemies, such as the larval predator Supputius cinticeps (Stål, 1860) (Hemiptera: Pentatomidae) and the prepupal and pupal parasitoid Jaliscoa nudipennis Bouček, 1993 (Hymenoptera: Pteromalidae), are reported.

Updated contribution to the knowledge of Tetranychoidea (Acari: Tetranychidae, Tenuipalpidae) from Syria with reinstatement of genus Nuciforaella Vacante

2019 ◽  
Vol 24 (4) ◽  
pp. 529
Author(s):  
Mahran Zeity ◽  
Nagappa Srinivasa
Keyword(s):  
Host Plant ◽  
Immature Stages ◽  
New Host ◽  
The Family ◽  
First Time

Sixteen species of Tetranychoidea, 11 Tetranychidae and 5 Tenuipalpidae are reported in this study. Seven of them are recorded for the first time from Syria: Bryobia gigas, Oligonychus afrasiaticus, O. coniferarum, O. pratensis, Cenopalpus rubusi, Tenuipalpus cupressoides and T. punicae. New host plant records are also reported. Reinstatement of the genus Nuciforaella Vacante is discussed in this study. Detailed descriptions of immature stages and female of Nuciforaella nikitensis are given. A key to the known species of the family Tetranychidae from Syria is provided.

A new species of the genus Gonioctena (Coleoptera: Chrysomelidae: Chrysomelinae) from Shikoku, Japan, with description of its immature stages

Zootaxa ◽  
2012 ◽  
Vol 3268 (1) ◽  
pp. 29
Author(s):  
HARUKI SUENAGA
Keyword(s):  
New Species ◽  
Host Plant ◽  
Immature Stages ◽  
A New Species ◽  
Alnus Firma

The adult, pupa, and larva of Gonioctena (Gonioctena) iyonis n. sp. are described from Shikoku, Japan. This species is similarto G. (G.) hiranoi Takizawa, G. (G.) simotuke Takizawa, G. (G.) hoki Takizawa and G. (G.) katsuyai Takizawa, and is distin-guished from them by the coloration of the femora and the shape of the aedeagus. The host plant of G. (G.) iyonis n. sp. is Alnus firma Siebold et Zucc.

LIFE CYCLE OF THE NYMPH FLY PALAEODIPTERON WALKERI IDE 1965 (DIPTERA: NYMPHOMYIIDAE) IN THE WHITE MOUNTAINS OF SOUTHERN QUÉBEC

1989 ◽  
Vol 121 (7) ◽  
pp. 603-607 ◽  
Author(s):  
P.P. Harper ◽  
Michel Lauzon
Keyword(s):  
Life Cycle ◽  
Larval Stage ◽  
White Mountains ◽  
Larval Instars ◽  
The Third ◽  
Summer Generation

AbstractCollections of larvae over 1 year in the River Clinton in the White Mountains of southern Québec indicated that Palaeodipteron walkeri Ide is bivoltine and that there are five larval instars. In April, larvae were in their fourth and fifth instars. Adults emerging in May and June gave rise to a summer generation in which most individuals emerged in August and September. The offspring of these adults, together with stragglers from the summer generation, formed an overwintering generation. Overwintering was completed in the larval stage, mainly the third and fourth instars. There was some growth in winter and development increased in the spring. Our data were compared with previously published observations; although no discrepancy occurred, our interpretation was different. Previous schemes proposed for the life cycle in this species were based on few specimens and lacked winter observations.

OBSERVATIONS ON THE BIONOMICS OF SOME NORTHERN SPECIES OF TABANIDAE (DIPTERA)

1951 ◽  
Vol 29 (3) ◽  
pp. 240-265 ◽  
Author(s):  
L. A. Miller
Keyword(s):  
Life Cycle ◽  
Larval Stage ◽  
New Records ◽  
Weather Conditions ◽  
Immature Stages ◽  
Northern Species

Ten species of Tabanus, five of Chrysops, and one of Atylotus are recorded from the Churchill, Manitoba, area. Of these, Tabanus itasca Philip, Tabanus sp. (new?), and Atylotus ohioensis (Hine) represent new records. It is established that Tabanidae in this region overwinter in the larval stage and that most species have at least a three-year life cycle. Problems in taxonomy are discussed. Methods of rearing the immature stages, of collecting adults emerging in the field, of estimating larval and adult populations, and of correlating adult activity and weather conditions are described, and the results are presented. Larvae of the tipulid Prionocera dimidiata (Lw.) are reported as predators of larvae of Chrysops spp. The emergence of the chalcid parasite Diglochis occidentalis (Ashm.) from pupae of Tabanus and Chrysops spp. reared from the larval stage is recorded.

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