Hymenolepidid Cysticercoids in Hyalella azteca of Cooking Lake, Alberta: Life Cycles and Descriptions of Four New Species

1970 ◽  
Vol 56 (6) ◽  
pp. 1124 ◽  
Author(s):  
R. B. Podesta ◽  
John C. Holmes
Keyword(s):  
New Species ◽  
Hyalella Azteca ◽  
Life Cycles

scholarly journals A New Species of Ligyrocoris Stal With a Key to the Northeastern Species (Hemiptera:Lygaeidae)

1963 ◽  
Vol 70 (1) ◽  
pp. 17-21
Author(s):  
Merrill H. Sweet
Keyword(s):  
New Species ◽  
Life Cycle ◽  
New England ◽  
Related Species ◽  
Habitat Preferences ◽  
Life Cycles ◽  
The Other ◽  
Closely Related Species ◽  
Carex Stricta ◽  
A New Species

In the course of current work upon the biology and ecology of the Rhyparochrominae of New England, a new species of Ligyrocoris was discovered. The species runs in Barber's (1921) key to the couplet separating diffusus (Uhler) from sylvestris (L.), but is distinct from either species. While the new species is closely related to these species, it is also quite close to L. depictus which is separated out in a different part of Barber's key.These four closely related species are sympatric in New England, although they are markedly different in their overall distribution. The habitat preferences and life cycles of the species are quite different (Sweet, unpublished). The habitat of the new species described below is most unusual for the genus. The greater part of the type series was collected along the margin of a small pond where sedge clumps were standing in the water among occasional exposed rocks rather than in relatively dry fields or slope habitats where the other species occur. The species feeds upon the seeds of the sedge, Carex stricta Lam, and its life cycle is apparently adapted to that of the sedge, which fruits in late May and June. The insect becomes adult in mid-June and lays eggs until mid-July. The eggs remain in diapause over the summer and winter and hatch in May.

scholarly journals The vertical distribution of phytal ostracods in the intertidal zone at Gore Point, Bristol Channel, U.K.

1982 ◽  
Vol 1 (1) ◽  
pp. 71-84 ◽  
Author(s):  
David J. Horne
Keyword(s):  
New Species ◽  
Vertical Distribution ◽  
Age Structure ◽  
Intertidal Zone ◽  
Life Cycles ◽  
Individual Species ◽  
Tidal Level ◽  
Percentage Composition ◽  
Annual Water ◽  
The Vertical Distribution

Abstract. The first detailed investigation of the vertical distribution of ostracods inhabiting intertidal algae is presented herein. A study was made of the ostracod faunas obtained from samples of Corallina collected at various levels along transects of the intertidal zone at Gore Point in the Bristol Channel. A total of 28 species were recorded, including four new species presently left in open nomenclature. Both the composition of the ostracod fauna and the population age structure of individual species were found to vary considerably according to tidal level. The development of instars apparently proceeds at a faster rate at higher tidal levels, probably due to higher mean annual water temperatures. Among the factors which may determine the percentage composition of the ostracod fauna at a given level are temperature, pH, and the life-cycles and migratory habits of individual species.

The life cycles of Bunodera sacculata and B. luciopercae (Trematoda: Allocreadiidae) in Algonquin Park, Ontario

1971 ◽  
Vol 49 (11) ◽  
pp. 1417-1429 ◽  
Author(s):  
L. R. G. Cannon
Keyword(s):  
Gall Bladder ◽  
Perca Flavescens ◽  
Hyalella Azteca ◽  
Life Cycles ◽  
Flame Cell ◽  
Reproductive Structures ◽  
Daphnia Similis ◽  
Excretory Bladder

Miracidia of Bunodera sacculata and Bunodera luciopercae develop into sporocysts in the gills of Pisidium variabile, where rediae are first produced after 60 to 70 days at 20C. Each redia has a well-developed pharynx, but neither gut nor lateral processes. Mature rediae, each with a birth pore and a degenerate pharynx, occur near the clam's gonad and contain ophthalmoxiphidiocercariae with a flame cell formula 2[(3+3+3) + (3+3+3)]. Cercarial stylets of B. sacculata and B. luciopercae are 15 and 18 long respectively. Only cercariae of B. sacculata have cystogenous glands. Infective metacercariae of B. sacculata develop in Daphnia similis and Moina affinis within 6 days and have well-developed reproductive structures unlike those of B. luciopercae, which develop within 12 days in Hyalella azteca and Crangonyx gracilis. Juvenile B. sacculata retain dark granules in the excretory bladder until they mature, which is within 3 weeks in the intestine of Perca flavescens. B. luciopercae juveniles, which expel the contents of the excretory bladder when they excyst, mature slowly, gradually moving from the gall bladder, where they first establish, to the intestine, where the first eggs are produced after 5 or 6 months. In B. sacculata spermatogenesis is abortive and reproduction parthenogenetic.

scholarly journals BUTTERFLY SURVEYS IN ALBANIA DURING 2014 INCLUDING THE DISCOVERY OF TWO NEW SPECIES FOR THE COUNTRY

2015 ◽  
Vol 3 ◽  
pp. 1-12
Author(s):  
Nikola Micevski ◽  
Filip Franeta ◽  
Martin Gascoigne-Pees ◽  
Branko Micevski ◽  
Rudi Verovnik
Keyword(s):  
New Species ◽  
Life Cycles ◽  
Butterfly Species ◽  
Field Surveys ◽  
Two New Species ◽  
A New Species

During field surveys conducted in Albania in 2014, we encountered 90 species of butterflies. Anthocharis damone Boisduval, 1836 is a new species for the fauna of Albania while Apatura metis Freyer, 1829 is confirmed for the country. With these discoveries the number of butterfly species known to occur in Albania has risen to 200 and our surveys added many new sites for species considered rare and local in Albania. In addition, the life cycles of Lycaena ottomana (Lefèbvre, 1830) and Apatura metis from Albania are documented and discussed.

Two new species of Zatypota (Hymenoptera: Ichneumonidae, Pimplinae) sharing the same host spider in Northeast Brazil

Zootaxa ◽  
2019 ◽  
Vol 4609 (1) ◽  
pp. 169
Author(s):  
JOBER FERNANDO SOBCZAK ◽  
DIEGO GALVÃO DE PÁDUA ◽  
GERMAN ANTONIO VILLANUEVA- BONILLA ◽  
FRANCISCO AGEU DE SOUSA NÓBREGA ◽  
YURI FANCHINI MESSAS
Keyword(s):  
New Species ◽  
Host Range ◽  
Development Time ◽  
Larval Instar ◽  
Life Cycles ◽  
Parasitoid Wasps ◽  
Northeast Brazil ◽  
Wasp Species ◽  
Two New Species ◽  
Species Specific

 Some polysphinctine wasps of the genus Zatypota complete their life cycles upon theridiid host spiders. The host range of these wasps is usually species-specific, although in some less common associations more than one wasp species interacts with the same host spider. Here we describe and illustrate the polysphinctine wasps Zatypota baezae sp. n. and Zatypota mulunguensis sp. n. (Hymenoptera: Ichneumonidae), both koinobiont ectoparasitoids of the spider Anelosimus baeza (Theridiidae). The two parasitoid wasps show the same development time (12 days) which was longer when compared with other parasitoid wasps Z. anomala Holmgren and Z. riverai Gauld (nine days). As described for other species of Zatypota and Hymenoepimecis, the second larval instar remains attached to the spider by the remains of the chorion and also by a rigid brownish-semitransparent membrane called a saddle. 

Cryptic species in the aphid genusMelaphisWalsh (Hemiptera: Aphididae: Eriosomatinae)

2017 ◽  
Vol 150 (1) ◽  
pp. 35-65 ◽  
Author(s):  
R.G. Foottit ◽  
H.E.L. Maw
Keyword(s):  
New Species ◽  
North America ◽  
Cryptic Species ◽  
Morphometric Analysis ◽  
North American ◽  
Life Cycles

AbstractMelaphis rhoisFitch (Hemiptera: Aphididae) has been considered the only North American representative of the aphid subtribe Melaphidina. Molecular and morphometric analysis indicates that there are at least three sympatric cryptic melaphidine species in North America.Melaphis asafitchinew speciesis described andM. rhoisis redefined and a neotype designated. The nameMelaphis minutaBaker cannot be assigned to either of these species. Details of the life cycles ofMelaphisWalsh species, including the existence of ovoviviparity in sexual females, is discussed.

Strigeoid trematodes of Malaysia with descriptions of a new genus and three new species

1979 ◽  
Vol 53 (1) ◽  
pp. 51-63 ◽  
Author(s):  
James R. Palmieri ◽  
M. Krishnasamy ◽  
John T. Sullivan
Keyword(s):  
New Species ◽  
New Genus ◽  
Life Cycles ◽  
Three New Species

ABSTRACTSix species of strigeoid trematodes are reported from Malaysia. One new genus and 3 new species are described: Apatemon (Apatemon) jamesi sp. n. (Strigeidae); cercaria Cotylurus sullivani sp. n. (Strigeidae); Neodiplostomum (Neodiplostomum) sp. (Diplostomatidae); Fibricola ramachandrani (Diplostomatidae); Pseudoscolopacitrema otteri gen. n. et sp. n. (Diplostomatidae); and cercaria Cyathocotyle malayi sp. n. (Cyathocotylidae). The life cycles of A. jamesi and C. malayi have also been investigated.

scholarly journals New aerophytic morphospecies of Nostoc (Cyanobacteria) from São Paulo State, Brazil

Hoehnea ◽  
2007 ◽  
Vol 34 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Célia Leite Sant'Anna ◽  
Maria Teresa de Paiva Azevedo ◽  
Luis Henrique Zanini Branco ◽  
Jiří Komárek
Keyword(s):  
New Species ◽  
Sao Paulo ◽  
Life Cycles ◽  
The State ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

Brazilian aerophytic biotopes are almost completely unknown regarding to cyanobacterial flora. During the study of this special flora, three morphospecies of the genus Nostoc from different habitats in the State of São Paulo, Brazil, were found. Based on their morphology, especially by formation and shape of the akinetes, life cycles and ecology, these populations were considered distinct from all known taxa of Nostoc and are proposed as new species: N. interbryum, N. viride, and N. alatosporum.

The larval trematodes of certain fresh-water molluscs

Parasitology ◽  
1959 ◽  
Vol 49 (3-4) ◽  
pp. 478-504 ◽  
Author(s):  
Christine Iles
Keyword(s):  
New Species ◽  
Fresh Water ◽  
Related Species ◽  
Life Cycles ◽  
South Wales ◽  
The Law

(1) Eight species of furcocercous cercariae have been found during a 3-year study of the trematode larvae harboured by certain fresh-water molluscs in Glamorganshire. Of these four are new species, two have previously been reported from South Wales by Rees (1932) and the remaining two species have been recorded in Europe but not in Britain.(2) Detailed descriptions are given of the four new species and the last two species which had not been completely described hitherto. The life cycles, as far as are known, of all the the species are outlined; the mollusc hosts are listed and for each cercaria a comparison with related species is given.(3) C. hamburgensis Komiya has been proved experimentally to be the larva of Apatemon gracilis minor Yam. and according to the law of priority becomes C. a.g. minor.

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