Description of the third instar larva of the stag beetle Prismognathus dauricus Motschulsky, 1860 (Coleoptera: Scarabaeoidea: Lucanidae) using electron microscopy

Micron ◽  
2019 ◽  
Vol 120 ◽  
pp. 10-16 ◽  
Author(s):  
Zong-Fei Qu ◽  
Zhi-Chao Jia ◽  
Lu Jiang
Keyword(s):  
Electron Microscopy ◽  
Instar Larva ◽  
The Third ◽  
Third Instar Larva

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.

scholarly journals Description of the Puparium and Redescription of the Third-Instar Larva of Brachyopa panzeri (Diptera, Syrphidae) with New Data on its Biology

Zoodiversity ◽  
2021 ◽  
Vol 55 (3) ◽  
pp. 207-216
Author(s):  
V. Yu. Shparyk ◽  
A. M. Zamoroka
Keyword(s):  
Electron Microscopy ◽  
Light And Electron Microscopy ◽  
Pupal Stage ◽  
Original Description ◽  
Instar Larva ◽  
Larval Morphology ◽  
The Third ◽  
First Time ◽  
Third Instar Larva ◽  
A New Species

In this study, we report the rearing of Brachyopa panzeri Goffe, 1945 from larva and elucidate its life circle with a duration of the pupal stage for the first time. We describe the puparium of B. panzeri of which the morphology was unknown prior to the current study. The study of the larva of B. panzeri showed discrepancies between our observations and its original description. These allow us to redescribe the larva, explaining the uncertainties that have existed in the literature since the description of the larva. We clarify larval morphology and propose new characters for identification with the map of its chaetotaxy. Morphological features of the larva and pupa are illustrated using both light- and electron microscopy. Additionally, we reared the endoparasitoid wasp Tetrastichus brachyopae Graham, 1991 (Hymenoptera: Eulophidae) from B. panzeri for the first time. Moreover, T. brachyopae is a new species for Ukraine.

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.

Further Studies of the Third Instar Larval Cuticle of Calliphora erythrocephala

1955 ◽  
Vol s3-96 (34) ◽  
pp. 181-191
Author(s):  
L. S. WOLFE
Keyword(s):  
Nitrate Solution ◽  
Silver Nitrate Solution ◽  
Instar Larva ◽  
Secretory Cycle ◽  
Calliphora Erythrocephala ◽  
The Third ◽  
Puparium Formation ◽  
Pore Canals ◽  
Third Instar Larva ◽  
Ammoniacal Silver

The penetration and reduction of ammoniacal silver nitrate solution in the epicuticle of the larva of Calliphora was studied. The epicuticle of the third instar larva is more permeable over the muscle insertions and cuticular sense organs. This finding is related to their development at the previous moult. A surface layer of orientated wax is not present. Proteinaceous and fatty materials from the feeding medium modify the properties of the cuticle surface. Chloroformmethanol extracts a soft light brown acidic lipide from the protein of the epicuticle after contaminants from the medium are removed. The water loss from larvae and puparia of different ages and after various treatments was studied. Young puparia recover from abrasion but larvae do not. An hypothesis that waxy substances are liberated on to the surface of the puparium during hardening and darkening of the cuticle is presented and discussed. The pore canals penetrate the endocuticle until they are cut off from the epidermis by the development of the prepupal cuticle just after the puparial contraction. An inner endocuticle in which pore canals were absent was not found. The structure of the pore canals as shown by phase contrast examination is discussed. The pore canals are three times more concentrated in the lateral regions than in the dorsal or ventral regions. The oenocytes go through a secretory cycle during puparium formation similar to that occurring before moulting of the larva.

Description of the Third-instar Larva and Adult Male of Megasoma sleeperi Hardy (Scarabaeidae: Dynastinae)

10.1649/857.1 ◽  
2006 ◽  
Vol 60 (1) ◽  
pp. 59-67
Author(s):  
Matthew Van Dam ◽  
Alex Van Dam ◽  
Michael D. Wilcox
Keyword(s):  
Adult Male ◽  
Instar Larva ◽  
The Third ◽  
Third Instar Larva

Description of the Third-Instar Larva of Monopsyllus Wagneri (Baker) (Siphonaptera: Ceratophyllidae)1

1976 ◽  
Vol 13 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Harold E. Stark ◽  
Eduardo G. Campos ◽  
Robert E. Elbel
Keyword(s):  
Instar Larva ◽  
The Third ◽  
Third Instar Larva

scholarly journals Storage and Utilization of Reserves by the Garden Chafer, Phyllopertha Horticola L

1956 ◽  
Vol 33 (3) ◽  
pp. 566-575
Author(s):  
ROGER LAUGHLIN
Keyword(s):  
Total Nitrogen ◽  
Instar Larva ◽  
The Other ◽  
Activity Period ◽  
Larval Feeding ◽  
The Third ◽  
Winter Half ◽  
Adult Feeding ◽  
Phyllopertha Horticola ◽  
Third Instar Larva

1. Samples of all stages of Phyllopertha horticola L. have been analysed for fat, total nitrogen and glycogen. 2. Total nitrogen increases throughout the larval feeding period, while fat and glycogen are laid down mainly in the latter half. 3. From November, when the third-instar larva goes into hibernation, until June, when the eggs have been matured and laid, no food is taken. 4. Of the store of fat and glycogen in the hibernating larva at the beginning of the winter, half is used up by the time the adult emerges. The other half is used in the formation of eggs. 5. Adult feeding provides energy for the post-oviposition activity period.

Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini)

Zootaxa ◽  
2019 ◽  
Vol 4544 (3) ◽  
pp. 381 ◽  
Author(s):  
CESAR J. BENETTI ◽  
MARIANO C. MICHAT ◽  
YVES ALARIE ◽  
NEUSA HAMADA
Keyword(s):  
Instar Larva ◽  
The Other ◽  
The Third ◽  
First Time ◽  
Third Instar Larva ◽  
Third Instar Larvae

The second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) are described and illustrated in detail for the first time, with special emphasis on morphometry and chaetotaxy. Larvae of P. decemnotatus can be distinguished from most other Agabinae by having secondary setae on the urogomphus and share with the other known species described in detail the presence of a ventroapical spinula on antennomere 3 and the absence of an occipital suture, natatory dorsal setae on tibia and tarsus and natatory setae on urogomphus. Platynectes decemnotatus larvae differ from larvae of Agabus Leach, 1817, Hydrotrupes Sharp, 1882 (currently in Hydrotrupini), Ilybiosoma Crotch, 1873, Ilybius Erichson, 1832 and the previously described Platynectes species in having a one-segmented urogomphus, a character previously observed only in larvae of Agabinus Crotch, 1873. The second- and third instar larvae of P. decemnotatus differ from those of P. (Agametrus) curtulus (Régimbart, 1899) in having the apical lateroventral process of antennomere 3 protruding (not protruding in P. curtulus). The third-instar larva of P. decemnotatus can also be distinguished from that of P. (Gueorguievtes) decempunctatus (Fabricius, 1775) by the absence of secondary dorsal setae on the tibia. 

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