Abstract
Abstract A new felt scale species, Rhizococcus avicennae sp. nov. (Hemiptera: Sternorrhyncha: Coccomorpha: Acanthococcidae), is described and illustrated based on adult females collected in Hamadan province, Iran. The new species resembles Rhizococcus desertus (Matesova, 1957) originally described from Kazakhstan and differs from the latter in having cruciform pores on the venter of the head, thorax, and abdominal segments I and II; in lacking frontal lobes and the frontal tubercle on the head; in the presence of flagellate setae on the ventral submargin and macroducts in three sizes on the venter and dorsum. The females of R. avicennae sp. nov. were found at the bases of leaves of an unidentified species of grass (Poaceae). An identification key to the species of Rhizococcus Signoret, 1875 currently known from Iran is presented.
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