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Suborder Sternorrhyncha - Plant-parasitic Hemipterans

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Recent adventive scale insects (Hemiptera: Coccoidea) and whiteflies (Hemiptera:Aleyrodidae) in Florida and the Caribbean region
By Stocks I.
In: Potential invasive pests of agricultural crops. Peña J.E., ed. CABI International, Wallingford, UK, pp. 342-362, 2013

Defense expression in the aphid Myzocallis asclepiadis.
By McMartin, K.A. & S.B. Malcolm.
Pierce Cedar Creek Institute, Hastings, MI. 15 pp., 2008
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McMartin, K.A. & S.B. Malcolm. 2008. Defense expression in the aphid Myzocallis asclepiadis. Final Report. Pierce Cedar Creek Institute, Hastings, MI. 15 pp.


The aphid Myzocallis asclepiadisis a relatively unknown species that feeds on the common milkweed Asclepias syriaca. This aphid is very mobile and mobility appears to be the primary defense against predators. However, over the course of the summer, the aphid changes color, from a pale yellow-green to having orange spots. This aphid could be a model to answer the question of how aposematism evolves. In this study, a natural, unmanipulated population of My. asclepiadisis was monitored, and experiments manipulating development and density to determine the nature of the color change were conducted. However, it does not appear that development and density are cues for color change. Photographic analysis of color and HPLC analysis are underway to determine the extent of color change and whether that change corresponds to an increase in cardenolide sequestration.

Ants defend aphids against lethal disease.
By Nielsen, C., A.A. Agrawal, and A.E. Hajek.
Biology Letters DOI: 10.1098/rsbl.2009.0743, 2009
Full Text

Nielsen, C., A.A. Agrawal, and A.E. Hajek. 2009. Ants defend aphids against lethal disease. Biology Letters DOI: 10.1098/rsbl.2009.0743


Social insects defend their own colonies and some species also protect their mutualist partners. In mutualisms with aphids, ants typically feed on honeydew produced by aphids and, in turn guard and shelter aphid colonies from insect natural enemies. Here we report that Formica podzolica ants tending milkweed aphids, Aphis asclepiadis, protect aphid colonies from lethal fungal infections caused by an obligate aphid pathogen, Pandora neoaphidis.

Phorodon cannabis Passerini (Hemiptera: Aphididae), a newly recognized pest in North America found on industrial hemp
By Cranshaw W.S., Halbert S.E., Favret C., Britt K.E., Miller G.L.
Insecta Mundi 0662: 1–12, 2018

Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect
By Jean Christophe Valmalette, Aviv Dombrovsky, Pierre Brat, Christian Mertz, Maria Capovilla, Alain Robichon
Scientific Reports, 2012
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"A singular adaptive phenotype of a parthenogenetic insect species (Acyrthosiphon pisum) was selected in cold conditions and is characterized by a remarkable apparition of a greenish colour. The aphid pigments involve carotenoid genes well defined in chloroplasts and cyanobacteria and amazingly present in the aphid genome, likely by lateral transfer during evolution. The abundant carotenoid synthesis in aphids suggests strongly that a major and unknown physiological role is related to these compounds beyond their canonical anti-oxidant properties.

Yaupon Psyllid, Gyropsylla ilicis (Ashmead)
By Mead, F.W.
Entomology Circular No. 247, 1983

Ctenarytaina longicauda sp. n. (Homoptera: Psylloidea) from Lophostemon confertus (R. Brown) in Australia and California.
By Taylor, K.L.
Australian Journal of Entomology Volume 26, Issue 3, pages 229-233 , 1987

Platycorypha nigrivirga Burckhardt (Hemiptera: Sternorrhyncha: Psylloidea), tipu psyllid, new to North America
By A. Rung, G. Arakelian, R. Gill, N. Nisson
Insecta Mundi 0097: 1-5, 2009

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