Cryptomyzus ribis

Hayhurstia atriplicis

Hyadaphis tataricae

Pineus similis

Adelges abietis

Adelges cooleyi

Adelges lariciatus

Myzus ligustri

Prociphilus fraxinifolii

On Ribes spp., especially R. rubrum, living in concavities on undersides of leaves formed by brownish or purplish red blister galls. ... In Europe, Central Asia, east Siberia, Korea, Japan, China and North America.

On Amaranthaceae, usually Atriplex and Chenopodium spp, living inside pod-like yellowish pseudogalls formed by rolling leaves upwards. 

On Lonicera spp., especially caprifolium and periclymenum, curling leaves upwards in spring ... 

Pineus similis (Gillette)   

Anholocyclic, living without host alternation on a wide range of Picea spp. in North America (abies, glauca, engelmanni, mariana, pungens, rubens), and introduced into Britain where it also colonises Picea sitchensis (Carter 1975).  ... Pseudofundatrices (not true fundatrices, because they hatch from unfertilised eggs) overwinter in the second or third instar under bud scales.  

[GALLS]
[F]eeding [by pseudofundatrices] in spring causes rather loose galls 1-4 cm long, with the constituent needles much paler than the normal new growth ...  As the gall matures the shoot and needles become brown and twisted giving it a ragged appearance.  

Uniquely, both alate and apterous gallicolae are produced in the galls.  Apterous gallicolae oviposit within the galls, but apterae may also be found outside the galls, laying eggs in small tufts of wax on the stem.  Alate gallicolae, 1.0-2.1 mm and dark reddish-brown, fly in June-July to recolonise spruce needles, laying eggs in white wax wool.  These apparently develop into the overwintering pseudofundatrix generation ...

Adelges (Sacchiphantes) abietis (L.) is anholocyclic on Picea spp. (abies, glauca, jezoensis, koyamai, sitchensis), with only two generations per year; a pseudofundatrix that induces a pineapple-like gall (fig. 123A, and see also influentialpoints.com/Gallery), and yellow to yellow-green alate gallicolae that leave the gall in late summer but do not generally disperse far, often laying eggs on the same or neighbouring spruce trees.  The galls are hard, green, and covered with trichomes; Rohfritsch (1990) studied their development in detail.  Ewert (1967) found differential levels of infestation by A. abietis galls among spruce clones ...

Adelges (Gilletteella) cooleyi (Gillette) typically host-alternates between Picea spp. (engelmanni, pungens, sitchensis) and Pseudotsuga spp. (macrocarpa, menziesii).  

The galls on shoot tips of Picea are characteristically elongate, with green, pink or red gall chambers and long needles protruding from them.  Apterous exules on needles of Pseudotsuga are covered in white woolly wax.  

Native to western North America, but now occurring throughout Europe and North America, and in Tasmania. Cumming (1962) described a monomorphic, non-galling, anholocyclic form on Picea glauca in Canada ...

Adelges lariciatus Patch   
Host-alternating between Picea spp. (abies, glauca, mariana, pungens) and Larix spp. (laricina, lyalli) in North America (Alberta, Manitoba, Saskatchewan, Utah).  Galls are globular, often sub-terminal and to one side of shoot, green when young to red and brown when mature. 

[Part of] a taxonomically very difficult complex of adelgids [Adelges laricis complex] which [alternate] between Picea and Larix, or have an incomplete cycle restricted to either the primary or the secondary host.  Galls of laricis sensu stricto on Picea are typical of the group; they are globular or ovate, with a cream or ivory coloration and waxy texture, becoming pink or brown just prior to opening.  They may be terminal, or have some growth of the shoot beyond the gall ...

... leaves are rolled longitudinally into narrow tubes and spotted with yellow 
... Apterae are shiny yellow, with distal parts of siphunculi brownish black
... introduced into North America.  Monoecious holocyclic, with oviparae and alate males in November.

Prociphilus (Meliarhizophagus) fraxinifolii (Riley)  Living all-year-round on American Fraxinus spp.  Yellow-green to pale green fundatrices and their progeny (both apterae and alatae) live in curled and clumped leaves at tips of twigs throughout the growing season. Alatae (BL 1.4-2.8 mm, with yellow-green abdomen) are produced in April-October.  Ant-attended colonies also occur all-year-round on Fraxinus roots.  Alate sexuparae occur in October-November (Smith 1974a).  Common and widely distributed in USA; also in Canada (British Columbia, Manitoba) and Mexico ...

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