Morphology of the third instar larva ofColobopterus quadratus(Coleoptera: Scarabaeidae: Aphodiinae) using scanning electron microscopy

2019 ◽  
Vol 82 (8) ◽  
pp. 1372-1379 ◽  
Author(s):  
Ce Li ◽  
Ying Lu ◽  
Hong Fang ◽  
Lu Jiang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Instar Larva ◽  
The Third ◽  
Third Instar Larva ◽  
Scanning Electron

Third instar larva morphology of Hydrotaea cyrtoneurina (ZETTERSTEDT, 1845) (Diptera: Muscidae) – a species of forensic interest

2013 ◽  
Vol 82 (4) ◽  
pp. 303-315 ◽  
Author(s):  
Andrzej Grzywacz
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Instar Larva ◽  
Palaearctic Species ◽  
Larval Morphology ◽  
The Third ◽  
Third Instar Larva ◽  
Scanning Electron ◽  
Third Instar Larvae

ABSTRACT The muscid Hydrotaea cyrtoneurina (ZETTERSTEDT, 1845) is a Palaearctic species whose adults are known for their forensic importance. The third instar larva morphology of H. cyrtoneurina, hitherto unknown, is described herein with the application of light and scanning electron microscopy. The characters of larval morphology enabling this species to be distinguished from other forensically important third instar larvae of Muscidae are discussed as well. Some details of the cephaloskeleton are discussed, and modifications in terminology are proposed based on the literature data and the results of this study.

scholarly journals Micromorphology of egg and larva of Eristalis fratercula, with an updated key of Eristalis species with known third instar larvae (Diptera: Syrphidae)

2017 ◽  
Vol 57 (1) ◽  
pp. 215-227 ◽  
Author(s):  
Andrés Campoy ◽  
Celeste Pérez-Bañón ◽  
Tore R. Nielsen ◽  
Santos Rojo
Keyword(s):  
Electron Microscopy ◽  
Instar Larva ◽  
Liquid Media ◽  
Larval Stages ◽  
The Third ◽  
Morphological Studies ◽  
The Common ◽  
Third Instar Larva ◽  
Cryo Scanning Electron Microscopy ◽  
Scanning Electron

Abstract The flower- or hoverflies (Syrphidae) and particularly the subfamily Eristalinae, are known by their importance as pollinators in both natural and agro-ecosystems. Similar to other saprophagous eristalines, the larvae of Eristalis Latreille, 1804 are characterized by an elongated anal segment and a telescopic breathing tube. These features have given them the common name of rat-tailed maggots and allow them to develop in liquid or semi-liquid media loaded with decaying organic material. This paper presents the first description of the egg and the third-instar larva of the boreal species Eristalis fratercula (Zetterstedt, 1838). Morphological studies are presented based on cryo-scanning electron microscopy (cryo-SEM). After comparison with all other known species of the genus Eris-talis with described preimaginal morphology, we conclude that main diagnostic character of E. fratercula is the presence of long branched spicules located in the upper margin on the lateral lips. Finally, we provide an updated key that includes the 15 Eristalis species whose third larval stages have already been described.

An emendation of the generic diagnosis of Phoreiobothrium Linton, 1889 (Tetraphyllidea: Onchobothriidae) with a detailed description of bothridia and hooks

1985 ◽  
Vol 63 (5) ◽  
pp. 1199-1206 ◽  
Author(s):  
J. N. Caira
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Monophyletic Group ◽  
Generic Diagnosis ◽  
The Third ◽  
Scanning Electron

Hook terminology for the three-pronged hooks of Phoreiobothrium Linton, 1889 is reconciled with that for two-pronged hooks such that the two outermost prongs are considered homologous with the prongs of a two-pronged hook and the third inner prong is termed the basal prong. Scanning electron microscopy was performed on the scolex of Phoreiobothrium lasium Linton, 1889 and the solid nature of the bothridia was reconfirmed. Examination of material of all four species of Phoreiobothrium leads to the conclusion that each species possesses three-pronged hooks that are hollow and open to the outside via pores. The bothridia of each species are considered to be horizontally divided into two loculi, the posterior one being recessed and vertically subdivided. The diagnosis of the genus Phoreiobothrium is emended, and the four species allocated to it are redescribed. Phoreiobothrium is determined to be a monophyletic group on the basis of two synapomorphies and a key to the four species of the genus is presented.

The Mechanism of active capture of animal food by the Sergestid Shrimp Acetes Sibogae Australis

1998 ◽  
Vol 78 (2) ◽  
pp. 497-508 ◽  
Author(s):  
Lachlan Mcleay ◽  
C.G. Alexander
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Prey Capture ◽  
Size Range ◽  
The Third ◽  
Feeding Modes ◽  
In Captivity ◽  
Combined Actions ◽  
Wide Size Range ◽  
Scanning Electron

Combining the use of scanning electron microscopy and microcinematography with functional and behavioural observations has clarified many aspects underlying the feeding processes of the small planktonic sergestid shrimp Acetes sibogae australis. In captivity Acetes sibogae australis is an opportunistic feeder that uses four principal feeding modes to capture a wide size range of prey: Artemia nauplii (<0.33 mm), copepods (<1mm) and moribund Acetes (up to 25 mm). Prey capture is effected by combined actions of the first three pairs of pereiopods and the third maxillipeds before transfer to the more dorsal second maxillipeds. The second maxillipeds are the principal appendages used in securing, manipulating, sorting and rejecting prey before insertion into the vicinity of the inner mouthparts.

Identification of larvae of two Aphodius Helwig, 1798 (Coleoptera: Scarabaeidae: Aphodiinae) species using morphology and DNA barcode

Zootaxa ◽  
2021 ◽  
Vol 5047 (2) ◽  
pp. 153-164
Author(s):  
ANDREY V. FROLOV ◽  
MARIA S. VISHNEVSKAYA ◽  
LILIA A. AKHMETOVA
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Dna Barcode ◽  
The Third ◽  
Coi Sequences ◽  
First Time ◽  
Scanning Electron ◽  
Third Instar Larvae

The third instar larvae of Aphodius (Alocoderus) hydrochaeris (Fabricius, 1798) and A. (Bodilus) ictericus (Laicharting, 1781) are described based on scanning electron microscopy and COI sequences. COI barcode sequence for A. (A.) hydrohaeris is provided for the first time. Two haplotypes are discovered in A. (B.) ictericus.  

First zoeal stage of the snapping shrimps Alpheus formosus Gibbes, 1850 and Alpheus malleator Dana, 1852 (Caridea: Alpheidae), with new characters to the genus

Zootaxa ◽  
2020 ◽  
Vol 4820 (3) ◽  
pp. 540-550 ◽  
Author(s):  
KARMINE PASINATTO ◽  
FERNANDO L. MANTELATTO ◽  
MARIANA TEROSSI
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Zoeal Stage ◽  
Proximal Segment ◽  
Anal Spine ◽  
The Third ◽  
Snapping Shrimps ◽  
First Time ◽  
Scanning Electron

The first zoeae of Alpheus formosus Gibbes, 1850 and Alpheus malleator Dana, 1852 are described and illustrated for the first time, based on laboratory-hatched larvae from parental females sampled in Vitória Island, Ubatuba, Brazil. Both species shared many characters with other species of genus Alpheus Fabricius, 1798, but they also have some exclusive characters as 10 setae on the basis of the maxilla, first maxilliped with endopod 2-segmented and exopod 4-segmented, second maxilliped with exopod 4-segmented, presence of bud only of the first pereopod, presence of anal spine and simple dorsal setae on the pleon. The zoea I of both species, nevertheless, can be separated by segmentation in the exopod of the antenna (8 in A. formosus, 6 in A. malleator); segmentation in the endopod and exopod of the third maxilliped (5 in A. formosus and 4 in A. malleator); peduncle of antennule 3-segmented in A. formosus (unsegmented or 2-segmented in other species) and presence of a medial tubercle in the proximal segment in the exopod of the antenna of A. malleator (absent in A. formosus, not reported in all other species). In this study three new characters are proposed to be analyzed in zoea of the genus Alpheus: presence of anal spine in both species (absent in Alpheus saxidomus Holthuis, 1980, but not reported in other species) and for the first time reported, presence of a tubercle in the exopod of the antenna (present only in A. malleator) and presence of simple dorsal setae on the pleon (both species), here analyzed under light and scanning electron microscopy.

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