INSECTS EMERGING FROM BROWN SLIME FLUXES IN SOUTHERN NEW ENGLAND

1970 ◽  
Vol 102 (3) ◽  
pp. 321-333 ◽  
Author(s):  
E. James Cole ◽  
Frederick A. Streams
Keyword(s):  
Great Britain ◽  
New England ◽  
Related Species ◽  
Late Summer ◽  
The Other ◽  
Closely Related Species ◽  
Cosmopolitan Species ◽  
Southern New England ◽  
The Relationship ◽  
Drosophila Robusta

AbstractSamples were taken weekly from 11 June to 1 October 1968 from brown slime fluxes occurring on trees (mostly elms) in Rockport, Mass., and in central and eastern areas of Connecticut and held in the laboratory for the emergence of adult insects.The most common emergents were Aulacigaster leucopeza (Meigen) and its parasite, Aphaereta colei Marsh, Mycetobia divergens (Walker), and Dasyhelea oppressa Thomsen. The only drosophilid reared from brown slime flux was Drosophila robusta Sturtevant, a species that was not particularly common.A comparison of the brown flux fauna of Great Britain with that of New England shows that some cosmopolitan species occur in flux in both countries. Species whose distribution is limited to only one of the countries are represented in the other country by closely related species (ecological homologues).The relationship between climatological factors and the fluxing condition of trees is discussed. The factor considered most important in continuing the fluxing state is rainfall during the late summer months.

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 The habitat preferences and life cycles of the species are quite different (Sweet, unpublished).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.

Pimpinella ibradiensis (Apiaceae), an unusual new species from Turkey

Phytotaxa ◽  
2015 ◽  
Vol 217 (2) ◽  
pp. 164 ◽  
Author(s):  
İlker Çinbilgel ◽  
özkan Eren ◽  
Hayri Duman ◽  
Mustafa Gökceoğlu
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Related Species ◽  
Conservation Status ◽  
Identification Key ◽  
The Other ◽  
Site Conditions ◽  
Closely Related Species

Pimpinella ibradiensis, an unusual new species found in the Toka Yayla (İbradı, Antalya) in southern Anatolia, is described and illustrated. Site conditions, synecology and conservation status of P. ibradiensis are considered. In light of the comparison with the other closely related four species, namely P. nephrophylla, P. flabellifolia, P. sintenisii and P. paucidentata, its similarity within the genus are discussed. P. ibradiensis is easly distinguished from its relatives by its white petals, presence of bracts and bracteoles, larger fruits (4–5.5 × 1–2 mm), and having serrulate basal leaves with 60–95 strongly cartilaginous teeth along margins. The geographical distribution of P. ibradiensis and closely related species are mapped and the identification key of those species is updated.

scholarly journals A revision of the Elachista regificella Sircom -complex (Lepidoptera: Elachistidae)

2001 ◽  
Vol 12 (3) ◽  
Author(s):  
Lauri Kaila ◽  
Bengt Bengtsson ◽  
Ivars Šulcs ◽  
Jari Junnilainen
Keyword(s):  
Life History ◽  
Great Britain ◽  
Host Plant ◽  
Central Europe ◽  
Related Species ◽  
Host Plants ◽  
Closely Related Species

The Elachista regificella complex (Elachistidae) is revised and considered to consist of three closely related species: E. regificella Sircom, presently only recorded from Great Britain, E. geminatella (Herrich-Schäffer), stat. rev. (= E. nieukerkeni Traugott-Olsen, syn. nov.) and E. tengstromi nom. nov. (= E. magnificella Tengström, 1848, nec Duponchel, 1843). The latter two species are widely distributed e.g. in Central Europe, the range of E. tengstromi extending to Japan. The species are diagnosed and illustrated. Life history records indicate that the species have, at least to some extent, different host plant preferences: Luzula sylvatica is recorded as the host plant of E. regificella and E. geminatella, of which the latter probably exploits other host plants as well. L. pilosa is the only known host plant of E. tengstromi in Europe, with further host plants recorded in Japan. Neotypes are designated for Elachista regificella Sircom and Poeciloptilia geminatella Herrich-Schäffer.

scholarly journals Repeated evolution of asymmetric genitalia and right-sided mating behavior in theDrosophila nannopteraspecies group

2019 ◽  
Author(s):  
Andrea Acurio ◽  
Flor T. Rhebergen ◽  
Sarah Paulus ◽  
Virginie Courtier-Orgogozo ◽  
Michael Lang
Keyword(s):  
Related Species ◽  
Current Data ◽  
The Other ◽  
Genital Morphology ◽  
Closely Related Species ◽  
Outgroup Species ◽  
Repeated Evolution ◽  
Drosophila Pachea ◽  
Species Specific ◽  
Group Species

AbstractBackgroundMale genitals have repeatedly evolved left-right asymmetries, and the causes of such evolution remain unclear. TheDrosophila nannopteragroup contains four species, among which three exhibit left-right asymmetries of distinct genital organs. In the most studied species,Drosophila pachea, males display asymmetric genital lobes and they mate right-sided on top of the female. Copulation position of the other species is unknown.ResultsTo assess whether the evolution of genital asymmetry could be linked to the evolution of one-sided mating, we examined phallus morphology and copulation position inD. pacheaand closely related species. The phallus was found to be symmetric in all investigated species exceptD. pachea, which display an asymmetric phallus with a right-sided gonopore, andD. acanthoptera, which harbor an asymmetrically bent phallus. In all examined species, males were found to position themselves symmetrically on top of the female, except inD. pacheaandD. nannoptera, where males mated right-sided, in distinctive, species-specific positions. In addition, the copulation duration was found to be increased innannopteragroup species compared to closely related outgroup species.ConclusionOur study shows that gains, and possibly losses, of asymmetry in genital morphology and mating position have evolved repeatedly in thenannopteragroup. Current data does not allow us to conclude whether genital asymmetry has evolved in response to changes in mating position, or vice versa.

A giant Permian fusulinid from east-central Alaska with comparisons of all giant fusulinids in western North America

1995 ◽  
Vol 69 (5) ◽  
pp. 805-812 ◽  
Author(s):  
Calvin H. Stevens
Keyword(s):  
North America ◽  
Related Species ◽  
The Other ◽  
Lower Permian ◽  
Early Permian ◽  
Western North America ◽  
Closely Related Species ◽  
East Central ◽  
West Texas ◽  
Species Groups

The discovery of a new locality yielding giant Guadalupian (Lower Permian) fusulinids in east-central Alaska extends the range of these forms much farther north than previously known, and into a tectonostratigraphic terrane from which they previously had not been reported. The number of areas from which giant parafusulinids are known in North America is thus raised to eight. Three of these localities are in rocks that previously had been referred to the allochthonous McCloud belt arc, and one, West Texas, is known to have been part of Paleozoic North America. Comparison of species from all areas suggests that there are two closely related species groups: one represented in Texas and Coahuila, and the other represented in Sonora, northern California, northeastern Washington, southern and northern British Columbia, Alaska, and apparently in Texas. These groups may differ because they are of slightly different ages or because interchange between the faunas of Texas–Coahuila area and the other regions was somewhat inhibited during the Early Permian.

A NEW SPECIES OF THE PERILISSUS ANATINUS SPECIES GROUP AND NOTES ON THE RELATIONSHIPS OF THE SPECIES GROUPS OF PERILISSUS (HYMENOPTERA, ICHNEUMONIDAE, CTENOPELMATINAE)

1994 ◽  
Vol 126 (2) ◽  
pp. 219-224 ◽  
Author(s):  
John Barron
Keyword(s):  
Species Group ◽  
Included Study ◽  
The Other ◽  
Southern Mexico ◽  
Closely Related Species ◽  
Mountain Ranges ◽  
Species Groups ◽  
Relationship Of ◽  
The Relationship ◽  
A New Species

AbstractIndividuals of Perilissus nudus sp.nov. of the Perilissus anatinus species group are described. This species, which occurs in the mountain ranges of southern Mexico and Costa Rica, is compared with the closely related species P. anatinus Barron. Locality data on additional specimens of P. anatinus, found in mountain ranges in Mexico, are included. Study of characteristics of P. nudus in relation to P. anatinus clarifies further the relationship of this species group with the other species groups of Perilissus.

BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE) XIII. FURTHER OBSERVATIONS ON HEMOCYTOLOGICAL DISTINCTIONS BETWEEN SPECIES

1979 ◽  
Vol 111 (7) ◽  
pp. 771-775 ◽  
Author(s):  
J.W. Arnold
Keyword(s):  
Related Species ◽  
Clear Correlation ◽  
Closely Related Species ◽  
The Relationship ◽  
Lepidoptera Noctuidae

AbstractThe length of mature, fusiform plasmatocytes is a suitable character for distinguishing between last instar larvae of the closely related species Euxoa annir (Streck) and E. lutulenta (Smith). This is a consistent character for a number of Euxoa species, but unreliable in E. altera (McD) where it changed in constant fashion during this stage. The relationship between plasmatocyte length and the duration of aestivation was also examined and showed no clear correlation.

Systematics of the Adiantum philippense complex (Pteridaceae, Polypodiales) in Taiwan

Phytotaxa ◽  
2016 ◽  
Vol 263 (2) ◽  
pp. 113 ◽  
Author(s):  
LI-YAUNG KUO ◽  
TIAN-CHUAN HSU ◽  
YI-HAN CHANG ◽  
YAO-MOAN HUANG ◽  
WEN-LIANG CHIOU
Keyword(s):  
Cryptic Species ◽  
Related Species ◽  
Species Complex ◽  
The Other ◽  
Closely Related Species ◽  
Hybrid Combination ◽  
Reproductive Modes ◽  
Taxonomical Revision

Adiantum philippense s.l. is a member of once-pinnate Adiantum but comprise several cytotaxa with different ploidies and reproductive modes. According to the differences of cytotypes, the up-to-date revision had identified three subspecies under the A. philippense complex. In Taiwan, different ploidies and reproductive modes had also been found in this species complex, and existence of (a) cryptic species among these cytotypes had been suggested. The current study focuses on taxonomical revision of Taiwanese A. philippense complex. We sampled not only different Taiwanese cytotypes/populations but also all subspecies under A. philippense and the closely related species of them. By re-examining their phylogeny, ploidies, and reproductive modes, we confirmed that the sexual diploids in Taiwan belong to Adiantum menglianense, and this species is phylogenetically separated from A. philippense. We further approved that A. menglianense can be morphologically distinguished from A. philippense by their frond features and spore numbers in sporangia. Another taxon of Taiwanese A. philippense complex is A. philippense subsp. philippense, which is an apomictic and triploidy subspecies. Additionally, we assigned lectotypes of A. menglianense, and revised the hybrid combination of A. × meishanianum. We also provided a key in order to identify two taxa under Taiwanese A. philippense complex and the other once-pinnate Adiantum species in Taiwan.

A clarification of Medicago sinskiae

1991 ◽  
Vol 69 (1) ◽  
pp. 100-106 ◽  
Author(s):  
Ernest Small ◽  
Brenda Brookes
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Related Species ◽  
The Other ◽  
Species Status ◽  
Closely Related Species

Little information has been available to justify the species status of the rare Turkmenian Medicago sinskiae Uljan. recognized by Uljanova in 1964. The holotype and plants raised from its seeds were examined, the chromosome number was determined, and a numerical taxonomic comparison was made of M. sinskiae and the other 12 species of Medicago section Spirocarpos subsection Pachyspirae. It was found that M. sinskiae is well separated from the most closely related species of Medicago and deserves recognition at the rank of species. Key words: Medicago sinskiae, Leguminoseae, alfalfa, taxonomy.

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