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Hyadaphis tataricaeTatarian honeysuckle aphidOn this page: Identification & Distribution Other aphids on the same hostIdentification & DistributionAdult apterae of Hyadaphis tataricae (tartaricae is a misspelling) are yellowish green to brownish yellow, and coated with greyish wax powder (see first picture below). Their siphunculi are pale or dusky, and the cauda is light brown. The antennal tubercles are only slightly developed. The (usually) 6-segmented antennae are about 0.4 times as long as the body, with a terminal process 2-3 times the length of the base of that segment. Secondary rhinaria are absent. The ultimate rostral segment (RIV+V) is 0.067-0.093 mm long (but usually less than 0.08 mm) (cf. Hyadaphis foeniculi & Hyadaphis coriandri, which both have RIV+V usually more than 0.095 mm.) The prosternal sclerite is usually pale and inconspicuous (cf. Hyadaphis bicincta in Europe & Hyadaphis passerinii and Hyadaphis foeniculi in Europe & North America, which all have a large dark trapezoid prosternal sclerite). Marginal tubercles are present on the prothorax and on tergites II-V. The siphunculi are 0.05-0.07 times as long as the body, about 3 times as long as wide, constricted at the base, and with the distal two thirds slightly swollen (cf. Hyadaphis foeniculi, which has strongly club-shaped siphunculi). The cauda is tongue-shaped to triangular, only a little longer than its basal width, and with 6-7 hairs. The body length of the adult Hyadaphis tataricae aptera is 1.1-2.5 mm.
Images above copyright Joseph Berger, Bugwood.org, under a Creative Commons License. The alate Hyadaphis tatarica (see second picture above) has a greenish yellow to light olive abdomen with dark-tipped siphunculi and cauda. Alatae have 30-34 tuberculate secondary rhinaria on antennal segment III, 6-11 on IV and 0-1 on V. The abdomen has dorsal transverse rows of more-or-less fused sclerites and marginal sclerites.
First two images above copyright Joseph Berger, Bugwood.org; third image copyright Whitney Cranshaw, Hyadaphis tataricae is found on honeysuckles (Lonicera spp.), especially those within the Lonicera tatarica species group. This insect overwinters as eggs, in debris at the base of the honeysuckle plant, which hatch by early April. As aphids feed on a leaf, the leaf folds in half and forms a protective shelter or pseudogall (see first picture above). Large colonies develop within the pseudogalls (see second picture above). Terminal shoots of affected honeysuckle plants then develop stunted, multi-branched growths called witches brooms (see third picture above). The witches brooms usually are bright pink to red. Heavy infestations weaken and eventually kill the honeysuckle. Hyadaphis tataricae is monoecious holocyclic, with oviparae and alate males in late August-November. The tatarian honeysuckle aphid is found in Europe, West & Central Asia, and has been introduced into North America. In America Hyadaphis tataricae has proven to be severe pest of ornamental honeysuckles, especially in the northern states of USA and Canada. Other aphids on the same hostHyadaphis tataricae has been recorded on at least 16 honeysuckle species (Lonicera altmannii, Lonicera × bella, Lonicera caerulea (inc. var altaica), Lonicera caprifolia, Lonicera chrysantha, Lonicera involucrata (inc var. ledebourii), Lonicera karelinii, Lonicera korolkowii, Lonicera maacki, Lonicera microphylla, Lonicera × purpusii, Lonicera quinquelocularis, Lonicera sempervirens, Lonicera stenantha, Lonicera tatarica, Lonicera xylosteum).
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