scholarly journals The immature stages of Eurymerus eburioides Audinet-serville, 1833 (Coleoptera: Cerambycidae: Ectenessini)

2005 ◽  
Vol 65 (1) ◽  
pp. 97-100 ◽  
Author(s):  
E Morelli ◽  
A. Sanchez ◽  
M. Bianchi
Keyword(s):  
Eucalyptus Globulus ◽  
Instar Larva ◽  
Diagnostic Value ◽  
Immature Stages ◽  
Neonate Larvae

Last instar larva and pupa of Eurymerus eburioides Audinet-Serville, 1833, are described and illustrated based on specimens reared from neonate larvae on Eucalyptus globulus globulus logs in the laboratory. Characters of possible diagnostic value are presented in this work.

scholarly journals The immature stages of Paramallocera hirta kirby, 1818 (Coleoptera: Cerambycidae: Elaphidionini)

2006 ◽  
Vol 66 (1a) ◽  
pp. 117-120
Author(s):  
E. Morelli ◽  
A. Sanchez ◽  
M. Bianchi
Keyword(s):  
Eucalyptus Globulus ◽  
Artificial Diet ◽  
Instar Larva ◽  
Diagnostic Value ◽  
Immature Stages ◽  
Neonate Larvae

Last instar larva and pupa of Paramallocera hirta Kirby, 1818 are described and illustrated based on specimens reared in the laboratory from neonate larvae on Eucalyptus globulus ssp. globulus logs and on an artificial diet. Characteristics of possible diagnostic value are also presented in this paper.

scholarly journals The immature stages of Phoracantha recurva Newman, 1842 and Phoracantha semipunctata Fabricius, 1775 (Coleoptera, Cerambycidae) and a key to larvae of these species

2002 ◽  
Vol 62 (4b) ◽  
pp. 853-860 ◽  
Author(s):  
E. MORELLI ◽  
M. BIANCHI ◽  
A. SANCHEZ
Keyword(s):  
Instar Larva ◽  
Diagnostic Value ◽  
Immature Stages ◽  
Phoracantha Semipunctata ◽  
Phoracantha Recurva

The description of the last instar larva and pupa of Phoracantha recurva Newman, 1842 and the redescription of the immature stages of Phoracantha semipunctata Fabricius, 1775 showing new characters of possible diagnostic value are presented in this work. A key of identification of both species based on these characters is also given.

scholarly journals Description of the puparium of Cyphomyia albitarsis (Diptera: Stratiomyidae: Clitellariinae) from Colombia

2019 ◽  
Vol 59 (2) ◽  
pp. 555-560
Author(s):  
Juliana Torres-Toro ◽  
Marta Wolff
Keyword(s):  
Instar Larva ◽  
Immature Stages ◽  
First Time

Abstract The puparium of Cyphomyia albitarsis (Fabricius, 1805) is described and illustrated for the first time, based on six puparia, of which five emerged into adults. In Cyphomyia Wiedemann, 1819, the immature stages (6th instar larva or puparia) of only eight species are known (Cyphomyia aurifrons Wiedemann, 1830, C. bicarinata Williston, 1900, C. erecta Mc-Fadden, 1969, C. leucocephala Wiedemann, 1819, C. marginata Loew, 1866, C. picta Schiner, 1868, C. pilossisima Gerstaecker, 1857, and C. souzalopesi Iide, 1967), which represents only 9% of the Cyphomyia species described. In addition, some features of the previously known immature stages of the genus are summarized and compared with the puparium of C. albitarsis.

Biology and morphology of immature stages of Meteorus trachynotus Vier. (Hymenoptera: Braconidae)

1990 ◽  
Vol 68 (5) ◽  
pp. 1000-1004 ◽  
Author(s):  
J. C. Thireau ◽  
J. Régnière ◽  
C. Cloutier
Keyword(s):  
Average Duration ◽  
Choristoneura Fumiferana ◽  
Pupal Stage ◽  
Instar Larva ◽  
Immature Stages ◽  
Head Region ◽  
Larval Stages ◽  
First Instar ◽  
Immature Development ◽  
First Time

The immature stages of Meteorus trachynotus Vier., developing in larvae of Choristoneura fumiferana (Clem.), are described. The egg of M. trachynotus is of the stalked type. There are three larval stages. The first instar has a caudal appendage which stops growing in the second instar and is lost when the larva exits from the host in the third instar. Only the first and third instars have sclerotized structures. The head region of the first instar bears a pair of hooklike appendages which are described for the first time. Cephalic sclerites of the last instar larva of other species of Meteorus are compared with those of M. trachynotus. The average duration of immature development at 23 °C was 18 days, the egg stage lasted 3 days, the first, second, and third instars lasted 5, 2.5, and 2.5 days, respectively, and the pupal stage lasted 5 days.

scholarly journals Biology and External Morphology of the Immature Stages of Dirphia moderata Bouvier (Lepidoptera: Saturniidae: Hemileucinae) in Anacardium occidentale L.

2020 ◽  
Vol 80 (1) ◽  
pp. 147-157
Author(s):  
G. A. S. Gonçalves ◽  
F. S. Barbosa ◽  
M. Paluch
Keyword(s):  
Average Duration ◽  
General Pattern ◽  
Instar Larva ◽  
Anacardium Occidentale ◽  
External Morphology ◽  
Cultivated Plants ◽  
Immature Stages ◽  
Average Temperature ◽  
First Instar ◽  
Cashew Tree

Abstract The genus Dirphia Hübner, [1819] presents Neotropical distribution. This genus, besides causing accidents of interest in public health, is a potential defoliator pest of cultivated plants, among them the cashew tree (Anacardium occidentale L.), a crop of great economic importance. This study describes the biology, external morphology of the immature stages of Dirphia moderata Bouvier, 1929 including the first instar larva chaetotaxy. The egg stage had an average duration of 15 days, larval stage 45 days and pupa 60 days, totaling 120 days in average temperature of 28.8 °C and 59.5% relative humidity. Six instars were confirmed by the Dyar rule, with a growth rate of cephalic capsule K = 1.4 times per ínstar. The results found in the first ínstar chaetotaxy follow the general pattern known for Hemileucinae.

scholarly journals The Biology and Immature Stages of the Moss-Eating Flea Beetle Cangshanaltica fuanensis sp. nov. (Coleoptera, Chrysomelidae, Galerucinae, Alticini), with Description of a Fan-Driven High-Power Berlese Funnel

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 571
Author(s):  
Yongying Ruan ◽  
Alexander S. Konstantinov ◽  
Albert F. Damaška
Keyword(s):  
Life History ◽  
New Species ◽  
Flea Beetle ◽  
Instar Larva ◽  
High Humidity ◽  
Immature Stages ◽  
Biological Features ◽  
Flea Beetles ◽  
Eggs And Larvae ◽  
A New Species

The biology of the moss and leaf litter inhabiting flea beetles is poorly understood. In this study, a new species of moss-eating flea beetles Cangshanaltica fuanensis sp. nov. is described; the morphology of adult and immature stages is examined and illustrated. Its life history and biology are studied. The remarkable and unique biological features are revealed: (1) females deposit one large egg at a time, egg length equals 0.4–0.5 times the female body length, these are unusual in Chrysomelidae; (2) females have only two ovarioles on each side of the ovary, which has not been reported in other Chrysomelidae species; (3) females lay and hide each egg under a spoon-shaped moss leaf; (4) cannibalism of a second instar larva on an egg was observed. Both adults and larvae feed on moss and are polyphagous; their feces mainly consist of un-digested moss fragments; high humidity is essential for the survival of eggs and larvae and expedites the hatching. In addition, a modified fan-driven Berlese funnel is designed for faster extraction of moss inhabiting flea beetles. This device could also be used for collecting other ground-dwelling arthropods. Its working diagram is illustrated and described.

Notes upon the biology and morphology of the immature stages of Neottiophilum praeustum (Meigen, 1926)(Diptera: Neottiophilidae) parasitic on birds

Parasitology ◽  
1954 ◽  
Vol 44 (1-2) ◽  
pp. 111-119 ◽  
Author(s):  
P. Tate
Keyword(s):  
Feeding Habits ◽  
Instar Larva ◽  
Rhagoletis Pomonella ◽  
Immature Stages ◽  
Primitive Character ◽  
Prepupal Stage ◽  
Calliphora Erythrocephala ◽  
The Third ◽  
Third Instar Larvae

1. The feeding habits of second- and third-instar larvae of Neottiophilum praeustum have been observed and show that this species is a true parasite of birds and feeds by sucking the blood of nestlings.2. If they are too numerous the larvae may kill the nestlings. Although they will continue to feed upon dead birds, and even penetrate into the viscera, such food is unsuitable for the development of the larvae and they become greatly distended and die within a few days.3. The morphology of the hitherto unknown second-instar larva is described and is compared with that of the third instar.4. Within the puparium of Neottiophilum praeustum there is a fourth moult resulting in the formation of a cast prepupal cuticle which resembles that described by Snodgrass in Rhagoletis pomonella and is much better developed than the prepupal cuticle in Calliphora erythrocephala.5. The better development of the prepupal cuticle in the acalypterates than in calypterates indicates that the presence of a prepupal stage in the cyclorrhaphous Diptera is a primitive character and is progressively reduced until in the higher families it is almost vestigial.

A NEW SPECIES OF TRICHOTHAUMALEA (DIPTERA: THAUMALEIDAE) FROM EASTERN NORTH AMERICA AND A DISCUSSION OF MALE GENITALIC HOMOLOGIES

1992 ◽  
Vol 124 (3) ◽  
pp. 491-499 ◽  
Author(s):  
Bradley J. Sinclair
Keyword(s):  
New Species ◽  
North America ◽  
Reproductive System ◽  
First Record ◽  
Instar Larva ◽  
Male Reproductive System ◽  
Eastern North America ◽  
Immature Stages ◽  
Phylogenetic Implications ◽  
A New Species

AbstractThe adult, pupa, and final-instar larva of Trichothaumalea elakalensis sp.nov. (Diptera: Thaumaleidae) are described and illustrated. This is the first record of this genus from eastern North America and first description of the immature stages. In addition, reinterpretation of the homologies of the male terminalia and preliminary observations on the male reproductive system of Thaumaleidae are presented and the phylogenetic implications upon the monophyly of the Chironomoidea are discussed.

Immature stages of the Australian flower-loving fly Apiocera striativentris (Diptera: Apioceridae)

Zootaxa ◽  
2018 ◽  
Vol 4387 (2) ◽  
pp. 394
Author(s):  
DAVID J. FERGUSON ◽  
DAVID K. YEATES
Keyword(s):  
North America ◽  
South America ◽  
Adult Emergence ◽  
Head Capsule ◽  
Instar Larva ◽  
Immature Stages ◽  
Southern South America ◽  
Australian Species ◽  
The Family ◽  
Late Instar

The Apioceridae (Diptera) are relatively large asiloid flies with just over 140 described species worldwide. They are closely related to both Mydidae and Asilidae, and most species are found in Australia and North America, however a handful are found in both southern Africa and southern South America. The immature stages of only one species is known, the Australian beach dune inhabiting species Apiocera maritima Hardy. Like most asiloid larvae, apiocerid larvae are assumed to be predators of other soft-bodied invertebrates in the soil. Anatomically the larvae and pupae are similar to those of closely related families. The larvae are elongate, cream-coloured, subcylindrical and with a small, well-sclerotised head capsule. The pupa has a number of robust processes and spines on the head capsule and rows of distinctive bristles on the abdominal tergites. These spines and bristles are used by the pupa to drill upwards out of the soil prior to adult emergence. Here we describe the late instar larva and pupa of the Australian species A. striativentris Paramonov and compare them to the larva and pupa of the previously described species. Apiocerid larvae have distinctive, rounded abdominal segments 2-5 that may be diagnostic for the family. 

Observations on the biology of Caraphractus cinctus Walker (Hymenoptera: Mymaridae), a parasitoid of the eggs of Dytiscidae (Coleoptera). 2. Immature stages and seasonal history with a review of Mymarid larvae

Parasitology ◽  
1961 ◽  
Vol 51 (3-4) ◽  
pp. 269-294 ◽  
Author(s):  
Dorothy J. Jackson
Keyword(s):  
Single Cells ◽  
Instar Larva ◽  
Host Larva ◽  
Immature Stages ◽  
Larval Stages ◽  
First Instar ◽  
Commonwealth Institute ◽  
Last Stage ◽  
Host Embryo ◽  
Seasonal History

The immature stages of Caraphractus cinctus Walker are described.Four larval stages have been observed which may correspond to three or four instars. In no stage have mandibles been observed.The first-instar larva is elongated and active. In the second-instar oral lobes are present. In the next stage the larva becomes shapeless and rather transparent. In the last stage the wall of the mid-gut shows conspicuous opaque spots which consist of single cells containing spherical concretions, probably the products of excretion.These concretions later become free in the gut of the pupa and are discharged in the meconium when the imago emerges from the host egg.The effects of parasitism on the host eggs of different ages is discussed. In newly laid host eggs all the contents are consumed by the parasitic larvae. In advanced eggs of Agabus the egg of Caraphractus is laid in the mid-gut of the host embryo where the parasitic larva develops, the hard parts of the host larva remaining intact. Parasitism in advanced eggs of Dytiscus is rarely successful.The larvae of other Mymaridae are discussed and their main features compared. The first-instar larva of Caraphractus does not correspond to any of the previously described types of mymarid larvae.The seasonal history is described, with the sequence of hosts parasitized throughout the year. From four to six generations of Caraphractus have been bred indoors during the year. The winter is passed as a diapausing prepupa. In some cases diapause may be prolonged. Fertility is high: 121 imagines have been bred from one female of Caraphractus.I have much pleasure in acknowledging my gratitude to the late Dr W. D. Hincks for his kindness in reading the typescript of this paper: the comments by such a well-known authority on Mymaridae have been most valuable. I am very grateful to Mr O. Bakkendorf for allowing me to reproduce several of his figures of Mymarid larvae from the valuable work he devoted to the biology of Danish hymenopterous egg-parasites. I am also grateful to Miss B. A. Trott of the Commonwealth Institute of Entomology for the help she has so kindly given me with references.

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