School of Natural Sciences and Medicine ILIA STATE UNIVERSITY


The researchers of the Iliauni Institute of Zoology described two previously unknown species of aphids


Shalva Barjadze, an employee of the Institute of Zoology of Ilia State University, along with his foreign colleagues described two new species of aphids that were unknown before. Both descriptions were published in the journal Zootaxa.

Researcher Shalva Barjadze with colleagues - Susan Halbert, Matthew Mursa (Division of Plant Industry, Gainesville, Florida, USA) and Mariusz Kanturski (University of Silesia in Katowice, Poland) - described a new species of aphid - Pleotrichophorus blackmani sp. n. based on winged and wingless parthenogenetic females and egg-laying females.

The described new species of aphid inhabits Euthamia graminifolia (L.) Nutt. (Asteraceae) in Florida, USA. Scanning electron and light microscopes were used in the description process. SEM microphotographs of wingless parthenogenetic females of Pleotrichophorus glandulosus (Kaltenbach, 1846) are presented for the first time. A chart of Euthamia-dwelling aphids based on wingless parthenogenic females is given.

Another previously unknown new species of aphid Pistacia palaestina Boiss. Anacardiaceae-dwelling Geoica inbari sp. Was described by researcher Shalva Barjadze and his colleagues - Susan Halbert (Division of Plant Industry, Gainesville, Florida, USA) and Rachel Ben-Shlomo (University of Haifa, Israel).

Description is based on wingless fundatrigenies, winged migrants (fundatrispuries), embryos of wingless exules in the bodies of winged migrants, and first-stage larva of wingless exules born to winged migrants, collected in the Mount Hermon area of northern Israel.

The new species differs from all known species of Geoica in its mitochondrial DNA and in gall shape from those species known from Pistacia. The new species of aphid makes coral-shaped galls when all species in the genus produce spherical galls.

The new species is a member of the Geoica utricularia group and is morphologically similar to Geoica wertheimae Brown & Blackman, 1994.

Ilia State University congratulates the researcher on his significant success.



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