Studies of British Anthomyiid Flies

1952 ◽  
Vol 43 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Mary Miles
Keyword(s):  
Related Species ◽  
Abdominal Segment ◽  
Immature Stages ◽  
Closely Related Species

A study of the immature stages of the Anthomyiid flies, Delia cilicrura, D. trichodactyla, Erioischia brassicae, E. floralis and Pegohylemyia fugax, associated with injury to cruciferous crops, has shown that the several species can be distinguished. The egg stage can be identified by the sculpturing of the chorion, except in the case of the closely related species E. brassicae and E. floralis where the sculpturing is similar but there is a considerable difference in size.The larvae can be distinguished by differences in the shape and character of the head and in its relation to the prothorax, and in the form of the mouth-parts in the three instars. The number of finger-like processes of the anterior spiracles and the number and arrangement of the tubercles of the eighth abdominal segment also contribute to the identification of the larvae.

scholarly journals Description of the puparium and adult genitalia of Dactylodeictes brevifacies James, 1974 (Diptera: Stratiomyidae)

2020 ◽  
Vol 60 ◽  
pp. e20206028
Author(s):  
Lara Duarte Piau Braga ◽  
Welinton Ribamar Lopes ◽  
José Roberto Pujol-Luz
Keyword(s):  
Adult Male ◽  
Related Species ◽  
New Record ◽  
Abdominal Segment ◽  
Ventral View ◽  
Gallery Forest ◽  
Closely Related Species ◽  
Male And Female ◽  
Cerrado Vegetation

The puparium of Dactylodeictes brevifacies was described based on fifty-eight specimens reared in laboratory until the emergence of adults. Larvae were collected under the bark of fallen trees in a Cerrado vegetation, Gallery forest; Palm swamp (Vereda) and open grassland (Campo Limpo) in States of Goiás and Tocantins, Brazil (New Record). The puparium was compared with that of Brachyodina lopesi, the most closely related species with a described puparium. Despite this species clearly shared the larval pachygastrinae features it has a remarkable character not know before for this subfamily: the presence of four pairs of ventral setae (V) in the eighth abdominal segment in ventral view, while in other larvae and puparia of this subfamily, there are five pairs of ventral setae. The adult male and female were described and figured.

Gyretes Brullé (Coleoptera: Gyrinidae) from Brazil: Morphology of eggs and early instars

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 331 ◽  
Author(s):  
DANIARA COLPANI ◽  
CÉSAR JOÃO BENETTI ◽  
NEUSA HAMADA ◽  
VANDERLY ANDRADE-SOUZA ◽  
MARIANO C. MICHAT
Keyword(s):  
Related Species ◽  
Sequence Data ◽  
Larval Survival ◽  
Molecular Techniques ◽  
Coi Gene ◽  
Immature Stages ◽  
Closely Related Species ◽  
Species Association ◽  
Dna Sequence Data ◽  
Laboratory Conditions

Taxonomic information regarding Gyrinidae is mostly based on adults, especially due to the difficulty in collecting immatures and assigning them to a particular species. Association between immatures and adults is sometimes difficult because closely related species can be found in the same habitat. To solve this problem a feasible technique is rearing under laboratory conditions. However, this method is challenging because larval survival rate is usually low, and emulation of natural conditions is difficult. Molecular techniques, especially the use of the COI gene, have been applied to identify species and to associate different life stages. However, in some species groups this marker has not been successful in distinguishing closely related species. The objectives of this study are to describe the egg and the first two instars of Gyretes nubilus Ochs, 1965 and the egg of G. minax Ochs, 1967 and to evaluate the utility of COI to associate immatures and adults. The association of these immature stages with adults was done either rearing adults under laboratory conditions or by using DNA sequence data (COI), corroborating the utility of this molecular marker to associate immature and adults in Gyretes. These immature stages are described, including chaetotaxic analysis of larvae for the first time for the genus Gyretes Brullé, 1835. The eggs are described based on scanning electron microscopy. The eggs are similar to those of other Gyrinidae genera in having a micropylar region in the anterior pole and a longitudinal fissure, and by the absence of an aeropyle, but they differ mainly in characters related to chorionic structure and reticulation. Larvae of Gyretes can be distinguished from those of the other Neotropical Gyrinidae genera by a combination of several characters, including the frontoclypeal seta FR3 short, presence of three conspicuous additional setae on lateral region of parietal (contiguous to stemmata), and posterior margin of lacinia smooth, with apex not indented. 

Gonioctena koryeoensis (Coleoptera: Chrysomelidae: Chrysomelinae), a new species from Korea, with a description of immature stages

Zootaxa ◽  
2010 ◽  
Vol 2438 (1) ◽  
pp. 52
Author(s):  
HEE WOOK CHO ◽  
JONG EUN LEE
Keyword(s):  
New Species ◽  
Host Plant ◽  
Related Species ◽  
Korean Peninsula ◽  
Abdominal Segment ◽  
Length Ratio ◽  
Immature Stages ◽  
A New Species

Gonioctena koryeoensis sp. nov. (Coleoptera: Chrysomelidae: Chrysomelinae) is described based on adults, larvae, and pupae collected from the southeastern Korean Peninsula. The new species is easily distinguished from related species by coloration, size, length ratio of antennal segments, and shape of aedeagus. The larva and pupa are also distinguished from all other known species by the tubercle pattern and the apical processes of the ninth abdominal segment, respectively. Notes on distribution, host plant, and ovoviviparity are included.

Description of the larval stages of Heterosternuta diversicornis (Sharp) (Coleoptera: Dytiscidae, Hydroporinae)

1998 ◽  
Vol 29 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Y. Alarie ◽  
K. Fritz
Keyword(s):  
Related Species ◽  
Abdominal Segment ◽  
Close Similarity ◽  
Maximum Width ◽  
Closely Related Species ◽  
Larval Instars ◽  
Larval Stages ◽  
First Instar

AbstractDescription of structures of all three larval instars of Heterosternuta diversicornis (Sharp) is presented. The chaetotaxy and porotaxy of the cephalic capsule, head appendages, legs, last abdominal segment, and urogomphi are discussed in detail. A close similarity between larvae of H. diversicornis, H. wickhami Zaitzev and H. cocheconis (Fall) is confirmed. All three species distinguish from the closely related species of the genus Neoporus Guignot by (i) a very short and constricted siphon, (ii) the primary setae FE8 and FE9 which are subequal in length to the maximum width of the metafemur (first instar), (iii) the absence of natatory setae on all tibiae and tarsi, and (iv) the contiguous position of the primary setae UR2 and UR3 on the urogomphomere 1.

scholarly journals Morphological ontogeny and molecular analyses of geographic strains of two closely related Neoseiulus species (Acari: Phytoseiidae)

Acarologia ◽  
2021 ◽  
Vol 61 (2) ◽  
pp. 432-452
Author(s):  
Mohamed W. Negm ◽  
Tomoko Matsuda ◽  
Takumi Kayukawa ◽  
Chyi-Chen Ho ◽  
Yu-Tzu Hsu ◽  
...  
Keyword(s):  
Ribosomal Dna ◽  
Related Species ◽  
Molecular Data ◽  
Predatory Mites ◽  
Nuclear Ribosomal Dna ◽  
Immature Stages ◽  
Closely Related Species ◽  
Molecular Analyses ◽  
Neoseiulus Longispinosus ◽  
Morphological And Molecular Data

The predatory mites, Neoseiulus longispinosus (Evans) and N. womersleyi (Schicha) (Phytoseiidae) are two morphologically close species. Although they can be mainly separated by the length of the dorsal seta S5, misidentifications may occur. The present study investigated various strains of the two closely related species collected from Japan, Taiwan and/or Thailand using a combination of morphological and molecular data. We described and illustrated the adults and immature stages. We also sequenced the 28S region of nuclear ribosomal DNA to determine whether these strains represent different species. The two species could be clearly separated based on the length of seta S5 and the ratio of setae Z5/S5. In a 28S tree, the examined strains also formed separate clades with 100% bootstrap values. We conclude that a combination of different methods is often necessary to precisely distinguish these closely related taxa.

A comparative study of the immature stages of closely related species Cassida pfefferi Sekerka, 2006, Cassida nobilis Linnaeus, 1758 and Cassida vittata Villers, 1789 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini)

Zootaxa ◽  
2021 ◽  
Vol 4942 (4) ◽  
pp. 451-500
Author(s):  
JOLANTA ŚWIĘTOJAŃSKA ◽  
EWA BELCZYK
Keyword(s):  
Comparative Study ◽  
Related Species ◽  
Immature Stages ◽  
Body Structure ◽  
Species Status ◽  
Closely Related Species ◽  
Preimaginal Stages ◽  
First Time

Immature stages of Cassida pfefferi Sekerka, 2006 from Cyprus are described and illustrated for the first time and compared with immatures of closely related species Cassida nobilis Linnaeus, 1758 and Cassida vittata Villers, 1789. Detailed descriptions of mature larvae and pupae of C. nobilis and C. vittata are also given. Analysis of the morphological body structure of the preimaginal stages of the studied species reveals subtle characters distinguishing C. pfefferi from other species of C. nobilis groups and confirms its species status. 

Scopula anfractata sp. n., a new geometrid moth from Yunnan, China (Lepidoptera: Geometridae, Sterrhinae)

Zootaxa ◽  
2005 ◽  
Vol 943 (1) ◽  
pp. 1 ◽  
Author(s):  
PASI SIHVONEN
Keyword(s):  
Related Species ◽  
Yunnan Province ◽  
Systematic Position ◽  
Species Group ◽  
Type Locality ◽  
Immature Stages ◽  
Closely Related Species ◽  
Geometrid Moth

A new geometrid moth, Scopula anfractata Sihvonen sp. n., is described and illustrated from the northern part of Yunnan province, China. The facies of S. anfractata are distinct from its congeneres, with concave transverse median and posterior lines and an acute apex of the forewing, resembling some species of the ennomine genus Loxaspilates Warren. Adults and genitalia of both sexes of S. anfractata are compared with those of S. dubernardi (Oberthür, 1923), which is considered the most closely related species. The systematic position of the two species within Scopula Schrank is uncertain, but structures of the genitalia suggest affinities with the S. umbelaria species group. Scopula anfractata is known only from the type locality of Dayan (Lijiang), China; its biology and immature stages are unknown.

The Adults and Immature Stages of Four Species of Eucordylea Dietz (Lepidoptera: Gelechiidae) on Spruce in Quebec

1962 ◽  
Vol 94 (11) ◽  
pp. 1198-1215 ◽  
Author(s):  
J. M. McLeod
Keyword(s):  
Related Species ◽  
Taxonomic Status ◽  
Immature Stages ◽  
Closely Related Species ◽  
The Family ◽  
Considerable Confusion

During investigations of lepidopterous needle-miners and bud-borers on spruce in the Province of Quebec between 1956 and 1959, four closely-related species belonging to the family Gelechiidae were found. One of the species, atrupictella, is the type of the genus Eucordylea Dietz (1900); a second, piceaella (Kft.) has been formerly assigned to the genus Recurvaria Haworth, and the remaining two were undescribed entities. In this paper, the four species are assumed to be congeneric and are tentatively assigned to Eucordylea Dietz. However, there is considerable confusion regarding the taxonomic status of this group and further generic divisions may be justified in future (Freeman 1960).

Description and Morphology of the Immature Stages of Three Closely Related Species of Contarinia Rond. (Diptera: Cecidomyiidae) from Galls on Douglas-fir Needles

1961 ◽  
Vol 93 (10) ◽  
pp. 833-851 ◽  
Author(s):  
S. F. Condrashoff
Keyword(s):  
Related Species ◽  
Morphological Study ◽  
Douglas Fir ◽  
Immature Stages ◽  
Closely Related Species ◽  
Larval Instars

A detailed morphological study of the immature stages of Contarinia pseudotsugae Condr., C. constricta Condr. and C. cuniculator Condr., along with their description, is presented in this paper. This work is based on examinations of several hundred larvae of each species, with numerous observations of larvae in the act of moulting and pupating which confirmed the morphological indications of three larval instars. Included also is a brief description of the galls associated with each midge species. Terminology used in the larval descriptions follows that of Möhn 1955.

scholarly journals Ischnura praematura sp. nov. (Odonata: Zygoptera: Coenagrionidae): a species from Yunnan (China) whose females mate in the teneral state

Zootaxa ◽  
2022 ◽  
Vol 5087 (1) ◽  
pp. 59-74
Author(s):  
IAGO SANMARTÍN-VILLAR ◽  
M. OLALLA LORENZO-CARBALLA ◽  
HAOMIAO ZHANG ◽  
ADOLFO CORDERO-RIVERA
Keyword(s):  
Related Species ◽  
Abdominal Segment ◽  
Posterior Lobe ◽  
Monophyletic Clade ◽  
Closely Related Species ◽  
Genetic Analyses

Ischnura praematura sp. nov. (Holotype ♂, China, Yunnan, Lijiang, 26º31´03.54”N, 100º13’38.89”E, 2396 m, 04 xii 2015, I. Sanmartín-Villar & H. Zhang leg.) is morphologically described, illustrated and compared with close species of the genus. Ischnura praematura can be mainly distinguished from its congeners I. aurora, I. rubilio and I. asiatica by its abdominal and thoracic morphology and colouration. The posterior lobe of the prothorax is elevated in I. praematura and the mesostigmal plates possess dorsal triangular protuberances. Ischnura praematura shows pointed paraprocts, internalised wide cerci and lacks a dorsal tuberculum in the tenth abdominal segment. The blue abdominal colouration is present in the last three segments (incomplete for segment eight and ten in some individuals). No female polychromatism was detected and all females observed possessed different colouration than male (gynochrome). Morphological distinctiveness of the species is supported by genetic analyses, which show that I. praematura forms a well-supported, monophyletic clade, with I. asiatica, I. ezoin and I. pumilio as the most closely related species. In the field, mature females show strong reluctance to mate, and males were observed mating with newly emerged females.  

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