A new species ofStomaphisWalker (Homoptera: Aphididae) from Czechoslovakia

Description of the oviparous female and new information on the biology of the rare aphid <i>Stomaphis radicicola</i> Hille Ris Lambers 1947 (Hemiptera, Aphidoidea)

“…4a,b) and second segment of hind tarsus (Fig. 4c,d) to middle tarsus) (Czylok & Blackman 1991) allow the distinction of this species from both the viviparous and oviparous female of S. bratislavensis. These two species differ also in other morphological characters.…”

“…There is no other record of its presence in Europe. The species described by Czylok and Blackman (1991) feeds on trunks of Quercus petrea Liebl., and in its appearance in life strongly resembles S. radicicola. The latter was described in 1947 by Hille Ris Lambers based on specimens collected in Leersum, Netherlands (Hille Ris Lambers 1947) (Fig.…”

Life cycle of maple-tree aphid Stomaphis graffii Cholodkovsky, 1894 (Hemiptera, Aphididae)

“…With their effective but relatively slow dispersal and high host specificity, the molecular diversity of Stomaphis populations may reveal new pattems of insect phylogeography and postglacial migration routes. Some species are very rare and known only from disparate localities, such as S. bratislavensis (Czylok & Blackman, 1991) or 5. acquerinoi. Other species such as S. wojciechowskii Depa, despite being relatively abundant, have remained unrecognized for a long time .…”

Miyalachnus—A New Lachninae Aphid Genus from Japan (Insecta, Hemiptera, Aphididae)

“…The mentioned transverse reinforcements form four open cells, and in three of them, two kinds of sunken coeloconic sensilla are visible, with two more protruding (type II) sensilla and one more sunken (type I) sensillum, which is poorly visible (Figure 14L). Type II coeloconic sensilla are characterized by many (15)(16)(17)(18)(19)(20) long, finger-like projections (Figure 14M), whereas type I coeloconic sensilla (the more sunken type) have only 6-8 shorter projections and lie deep in an additional, small circular cavity (Figure 14N). The separate small multiporous placoid sensillum, which lies on the basal part of the terminal process, is like the first one, i.e., mushroom-shaped and rounded, about 10-11 µm in diameter, surrounded by a small, protuberant, and inrolled flange with smooth edges (Figure 14O).…”

“…Tuberolachnini was established by Oestlund [10] but without the broad acceptance of aphidologists. Several authors who presented different Lachninae classification proposals never used Tuberolachnini as an independent group [11][12][13][14][15][16]. Only Mamontova [17][18][19][20] treated Tuberolachnini as one of the tribes within Lachninae.…”