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This is the last volume dealing with the aphids of Fennoscandia and Denmark. It treats the remaining species of Aphididae and the family Lachnidae and contains a host plant index and an index to all Latin names of the species treated in all six volumes. Like the first five volumes it contains keys and illustrations.
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This volume treats part of the tribe Macrosiphini (family Aphididae, subfamily Aphidinae) with keys (also to genera of Macrosiphini to be treated in volumes 5 and 6) and decriptions of genera and species occuring in Scandinavia or expected to be found there in the future, with notes on distribution and biology and several drawings.
An introduction to the tribe is given. The author does not agree with any proposed way to subdivide it into subtribes, but the sequence of genera is rather traditional, beginning with Anuraphis, Brachycaudus, Dysaphis and supposed relatives. This volume treats also the Brevicoryne-group, Coloradoa, Cavariella a.o. ending with some moss aphids. The Myzus-and Nasonovia- groups and part of the Macrosiphum-group will be treated in the fifth volume, the remaining part of the latter and the Megoura- group in the sixth volume together with the family Lachnidae.
The book can be used for determination and gives a survey of the recent knowledge of taxonomy, biology and distribution. Like the other volumes it contains a catalogue showing occurrence of the species in Scandinavia, Britain and North Germany. A host plant list to all species will be given in the sixth volume.
The first three volumes treated 1) general morphology, taxonomy and biology of aphids, Mindaridae, Hormaphididae, Thelaxidae, Anoeciidae and Pemphigidae, 2) Drepanosiphidae (incl. Chaitophorinae) and 3) part of Aphididae (Pterocommatinae and Aphidini within Aphidinae).
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Keys and descriptions of some of the aphids belonging to the Macrosiphini occurring in Scandinavia are given with drawings and colour plates. Among the genera are Myzus, Nasonovia, Acyrthosiphon and Macrosiphum. The other genera and species of Macrosiphini are treated in vol. IV and the coming vol. VI, which is the last one of The Aphidoidea of Fennoscandia and Denmark. Descriptions include morphology, distribution and biology.
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Abstract

Three new species of fossil aphids are described from Canadian amber, age the Upper Cretaceous, viz. Longiradius foottitti n. gen. et n. sp., which has been referred to Palaeoaphididae, Canaphis albertensis n. gen. et n. sp. and Aphidinius constrictus n. gen. et n. sp., which have been impossible to place in any known family. Furthermore more material of Mesozoicaphis canadensis Heie, belonging to the extinct family Mesozoicaphididae, are described. At least 32 specimens of Mesozoicaphis spp. occur in the material, often more than two in the same piece of amber, making it highly probable that their host plant was the resin-producing gymnosperm. Eight new species of fossil aphids with 16 specimens are described from clay shales in Nevada, age the Middle Miocene, viz. Palaeogreenidea rittae n. gen. et n. sp. belonging to the family Greenideidae, Similidrepan pulawskii n. gen. et n. sp., Nevaphis nevadensis n. gen. et n. sp. and Americaphis longipes n. gen. et n. sp., which have placed in Drepanosiphidae, Lachnarius miocaenicus n. gen. et n. sp., which belongs to Lachnidae, and Eriosaphis leei gen. et n. sp., Eriosomaphis jesperi n. gen. et n. sp. and Eriosomaphis occidentalis n. sp., which have been placed in Eriosomatidae (= Pemphigidae).

In: Insect Systematics & Evolution
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Abstract

The fossil aphid Schizoneurites obliquus n.sp. from the Copenhagen collection of Baltic amber insects is described; the presence of one oblique vein in the hind wing separates it from the six previously described species of this genus, Schizoneurites Cockerell, 1915, of which Antiquaphis Heie, 1967, and Elektraphis Steffan, 1968, are synonyms. A new diagnosis of the genus and a key to the species are given. In specimens of S. robustus (Heie, 1967) and S. fossilis (Heie, 1967) occurring among the other Baltic amber insects recently acquired by the Zoological Museum of Copenhagen, structures resembling the rhinaria in Adelges Vallot are visible on the three terminal antennal segments, confirming the view held by Steffan (1968) that the group belongs in the Aphidina ovipara. The rhinaria, which have not been seen before, also shows that Schizoneurites, the only genus within the family Elektraphididae Steffan, 1968, together with the Adelgidae, forms a group, of which the Phylloxeridae is the sister group. The synapomorphies of the Elektraphididae and Phylloxeridae are explained as results of convergent or parallel evolution.

In: Insect Systematics & Evolution
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Abstract

Redescriptions and notes on systematic position of six little known Tertiary aphids are given, viz. (I) Anconatus gillettei Cockerell, which is placed in Siphonophoroides Buckton, (2) Echinaphis rohweri Cockerell, which may be placed in the system near the common base of Greenideidae and Callaphididae, (3) Schizoneurites brevirostris Cockerell, which is allied with Antiquaphis Heie, (4) Tetraneura oligocenica N. Theobald, which is placed in Aixaphis nov. gen. among Aphidoidea viviovipara incertae sedis, (5) Tetraneura provincialis N. Theobald, whose belonging in Pemphigidae is doubtful, and (6) Schizoneura meunieri Heie (syn. S. patchi Meunier), which really may be a Schizoneura, but only a few morphological characters are known.

In: Insect Systematics & Evolution
Author:

Abstract

Studies of material of Betlllaphis brevipilosa Börner, 1940, collected by Börner in 1939 and believed to be syntypes, have shown that the species called brevipilosa by Börner is the same taxon as B. quadrituberculata subsp. helvetica Hille Ris Lambers, 1947, later given species rank as B. helvetica. The latter name is a junior synonym of brevipilosa. A lectotype has been selected. The other specimens have been labelled paralectotypes.

In: Insect Systematics & Evolution