Immature Stages of Chaoborus borealis Cook (Diptera: Culicidae)

1960 ◽  
Vol 92 (5) ◽  
pp. 396-400
Author(s):  
B. C. Smith
Keyword(s):  
Instar Larva ◽  
Fourth Instar ◽  
Immature Stages ◽  
Natural Control ◽  
Fourth Instar Larva

The immature stages and adults of Chaoborus borealis Cook were collected near Churchill, Manitoba, in 1949 and 1950 in investigations on the natural control of biting flies (James, 1953; James and Smith, 1958). Cook (1956) described the adult and the fourth-instar larva in his revision of the Nearctic Chaoborinae, and noted the similarity between the fourth-instar larva and that of C. flavicans (Mg.). This paper contains descriptions of the egg, the first-, second-, and fourth-instar larvae, and the pupa of C. borealis.

Description of the immature stages and redescription of the adults of Culex (Culex) lahillei Bachmann & Casal (Diptera: Culicidae)

Zootaxa ◽  
2011 ◽  
Vol 2915 (1) ◽  
pp. 29 ◽  
Author(s):  
MAGDALENA LAURITO ◽  
WALTER RICARDO ALMIRÓN ◽  
GUSTAVO CARLOS ROSSI
Keyword(s):  
Instar Larva ◽  
Fourth Instar ◽  
Immature Stages ◽  
Fourth Instar Larva ◽  
First Time

The pupa and fourth-instar larva of Culex (Culex) lahillei Bachmann & Casal are described and illustrated for the first time and the adults redescribed. Information is provided on the distribution, bionomics and taxonomy of the species.

The immature stages of the biting midge Culicoides debilipalpis Lutz (Diptera: Ceratopogonidae)

Zootaxa ◽  
2019 ◽  
Vol 2716 (1) ◽  
pp. 42 ◽  
Author(s):  
MARÍA M. RONDEROS ◽  
CARLA G. CAZORLA ◽  
GUSTAVO R. SPINELLI
Keyword(s):  
Phase Contrast ◽  
Instar Larva ◽  
Fourth Instar ◽  
Immature Stages ◽  
Fourth Instar Larva ◽  
Larval Biology ◽  
Biting Midge ◽  
Tree Holes ◽  
Entre Rios ◽  
Scanning Electron

The fourth instar larva and pupa of Culicoides debilipalpis Lutz, 1913 are described, illustrated, and photomicrographed from material collected in tree-holes of Salix sp. in Entre Rios Province, Argentina by using binocular, phase-contrast, and scanning electron microscopy. Measurements of instars I–IV are also presented. The larva shows features typical to carnivorous-predatory larvae, as well as characters typical of larvae occurring in tree holes and clean water. Details on larval biology, habitat, and feeding behavior are given.

Neotype designation and redescription of adult male and immature stages of Anopheles (Nyssorhynchus) pictipennis (Philippi) (Diptera: Culicidae)

Zootaxa ◽  
2009 ◽  
Vol 2295 (1) ◽  
pp. 15-24 ◽  
Author(s):  
CHRISTIAN R. GONZÁLEZ ◽  
MARIA ANICE MUREB SALLUM
Keyword(s):  
Adult Male ◽  
Larval Stage ◽  
Male Genitalia ◽  
Instar Larva ◽  
Sao Paulo ◽  
Fourth Instar ◽  
Immature Stages ◽  
São Paulo ◽  
Fourth Instar Larva ◽  
Diagnostic Characteristics

A neotype is designated for Anopheles (Nyssorhynchus) pictipennis (Philippi) and morphological redescriptions are provided for the adult male, male genitalia, fourth-instar larva and pupa. All specimens, including the neotype were collected in Río Mapocho, Santiago, Chile in 1945 / 1946, and were deposited in the Entomological Collection of Faculdade de Saúde Pública, Universidade de São Paulo (FSP-USP), Brazil. The neotype was previously invalidly designated the allotype of An. pictipennis by Lane and Neghme (1946). Illustrations are provided for diagnostic characteristics of the male genitalia, and larval stage.

scholarly journals First description of the immature stages of Dasyhelea alula and a redescription of adults from China (Diptera, Ceratopogonidae)

ZooKeys ◽  
2019 ◽  
Vol 824 ◽  
pp. 135-145 ◽  
Author(s):  
Chen Duan ◽  
Xiao Hong Jiang ◽  
Qiong Qiong Chang ◽  
Xiao Hui Hou
Keyword(s):  
Electron Microscope ◽  
Instar Larva ◽  
Fourth Instar ◽  
Guizhou Province ◽  
Immature Stages ◽  
Flooded Soil ◽  
Fourth Instar Larva ◽  
Male And Female ◽  
Medical University ◽  
Scanning Electron

The fourth instar larva and pupa of Dasyheleaalula Yu, 2005 are described and illustrated using a Scanning Electron Microscope. The adult male and female of this species are redescribed. Immatures were collected from flooded soil near a pond in Xiaojiawan village, Guizhou province, China and reared in the laboratory. The studied material is deposited in the Insect Collection of Zunyi Medical University.

Accumulation of cadmium by the fourth instar larva of the fly Chironomus thummi

1986 ◽  
Vol 18 (3) ◽  
pp. 395-405 ◽  
Author(s):  
Lisa A. Seidman ◽  
Gerald Bergtrom ◽  
David J. Gingrich ◽  
Charles C. Remsen
Keyword(s):  
Instar Larva ◽  
Fourth Instar ◽  
Fourth Instar Larva ◽  
Chironomus Thummi

scholarly journals Anopheles (Nyssorhynchus) deaneorum: a new species in the albitarsis complex (Diptera: culicidae)

1989 ◽  
Vol 84 (4) ◽  
pp. 535-543 ◽  
Author(s):  
Maria Goreti Rosa-Freitas
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
Adult Female ◽  
Instar Larva ◽  
Fourth Instar ◽  
Type Locality ◽  
Fourth Instar Larva ◽  
External Appearance ◽  
A New Species ◽  
Nei's Genetic Distance

Anopheles (Nyssorhynchus) deaneorum sp. n. is described from specimens collected in Guajará-Mirim, Rondônia state and Rio Branco, Acre state, Brazil, on human and animal baits, inside dwellings and from the progenies of engorged females. A detailed description of the shape of egg, external appearance of adult female and male, genitalias, female cibarial armature and complete chaetotaxy of pupa and larva show that it can be distinguished from Anopheles albitarsis from the type-locality and other areas by the paler general external appearance of the adult, the posterolateral tufts of scales, on the female abdominal terga and the branching of the outer anterior clypeal seta (3-C) of the fourth instar larva (as shown in illustrations). If species can also be distinguished from An. albitarsis from the type locality by the allele frequencies at 11 enzymic loci as represented by Nei's Genetic Distance.

Description of the fourth‐instar larva of Coquillettidia linealis (Diptera: Culicidae)

2020 ◽  
Vol 59 (1) ◽  
pp. 119-126
Author(s):  
Petrina H Johnson ◽  
Richard C Russell
Keyword(s):  
Instar Larva ◽  
Fourth Instar ◽  
Fourth Instar Larva

scholarly journals Biology and Predation of Stethorus punctillum Weise (Coleoptera: Coccinellidae) feeding on Tetranychus urticae Koch

1970 ◽  
Vol 15 ◽  
pp. 1-5 ◽  
Author(s):  
GC Biswas ◽  
W Islam ◽  
MM Haque
Keyword(s):  
Tetranychus Urticae ◽  
Developmental Stages ◽  
Instar Larva ◽  
Predation Rate ◽  
Fourth Instar ◽  
Fourth Instar Larva ◽  
First Instar ◽  
Different Seasons ◽  
Two Spotted Spider Mite ◽  
Stethorus Punctillum

The duration of hatching, larval instars and pupal stages of Stethorus punctillum feeding on two-spotted spider mite, Tetranychus urticae were investigated in different seasons under laboratory conditions. The highest values of different developmental stages were obtained during winter. Higher temperature significantly reduced the duration of different developmental stages. No significant effect of relative humidity was exerted on the development stages of S. punctillum. The predation rate of fourth instar larva of S. punctillum was the highest whereas the first instar larva consumed the lowest number of prey. The fourth instar larva of the predator consumed 135.8 eggs, 126.4 larvae, 96.6 nymphs and 72.8 adults per day separately. But the first instar consumed 41.6 eggs, 36.2 larvae, 26.8 nymphs and 16.8 adults during the same period. Keywords: Developmental durations, predation, Tetranychus urticae, Stethorus punctillum   doi: 10.3329/jbs.v15i0.2196 J. bio-sci. 15: 1-5, 2007

scholarly journals Anopheles (Cellia) rampae n. sp., alias chromosomal form K of the Oriental Maculatus Group (Diptera: Culicidae) in Southeast Asia

Zootaxa ◽  
2011 ◽  
Vol 2810 (1) ◽  
pp. 47 ◽  
Author(s):  
PRADYA SOMBOON ◽  
DAMRONGPAN THONGWAT ◽  
RALPH E. HARBACH
Keyword(s):  
Southeast Asia ◽  
Sibling Species ◽  
Male Genitalia ◽  
Instar Larva ◽  
Fourth Instar ◽  
Fourth Instar Larva ◽  
Chromosomal Form ◽  
Oriental Region ◽  
As Species

Chromosomal form K (also known as species K) of the Anopheles maculatus group of sibling species in the Oriental Region is diagnosed and formally named An. (Cellia) rampae Harbach & Somboon, n. sp. The male genitalia, pupa and fourth-instar larva are illustrated and information is provided on the morphology, systematics, bionomics and distribution of the species.

A new species of the genus Ablabesmyia Johannsen from the Neotropics and description of the pupa of Ablabesmyia bianulata Paggi (Diptera: Chironomidae: Tanypodinae)

Zootaxa ◽  
2010 ◽  
Vol 2386 (1) ◽  
pp. 49 ◽  
Author(s):  
AUGUSTO SIRI ◽  
ANALÍA C. PAGGI
Keyword(s):  
New Species ◽  
Buenos Aires ◽  
Instar Larva ◽  
Color Pattern ◽  
Fourth Instar ◽  
Buenos Aires Province ◽  
Fourth Instar Larva ◽  
Male Adult ◽  
A New Species ◽  
Male Pupa

The male, pupa and fourth instar larva of Ablabesmyia platensis sp. n. from La Plata, Buenos Aires province, Argentina and the pupa of A. bianulata Paggi collected in southern Argentina are described and figured. The male adult diagnosis of A. bianulata is emended, and the aedeagal complex is redescribed and photographed. Differences in the aedeagal complex and the color pattern of the pupa mainly distinguish these two species. The new species is also compared with the Neotropical A. oliveirai Oliveira et Gessner.

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