Margarodidae

Hodgson, Chris & Foldi, Imre, 2006, A review of the Margarodidae sensu Morrison (Hemiptera: Coccoidea) and some related taxa based on the morphology of adult males, Zootaxa 1263 (1), pp. 1-250 : 1-250

Key to species considered here within the family Margarodidae .

(Details for Eurhizococcus brasiliensis (Wille) taken from Foldi, 1990).

1. Aedeagus very long (at least 2x length of penial sheath) and very narrow; antennae generally 13 or 14 segmented; loculate pores present, with many "loculi"; setae on most antennal segments much longer than width of segments Porphyrophora hamelii

­ Aedeagus short, never more than about 1.25x length of penial sheath, and generally at least half width of penial sheath; antennae 10 segmented or less; loculate pores, when present, with 2–4 "loculi"; setae on most antennal segments subequal to or much shorter than width of segments ..................................................................................... 2

2. Tubular ducts on dorsum of abdomen restricted to segment VII .................................... .............................................................................................. Eurhizococcus brasiliensis

­ Tubular ducts on dorsum of abdomen present on segments VI and VII, although occasionally ducts fused into a single group ........................................................................ 3

3. Tubular ducts on dorsum of abdominal segments VI and VII fused, forming a single group; setae along dorsal surface of metatibia and tarsus all strongly spine­like, some almost as wide as long; loculate pores absent ...................... Dimargarodes tanganyicus

­ Tubular ducts on dorsum of abdominal segments VI and VII clearly in 2 separate groups; setae along dorsal surface of metatibia and tarsus at most only slightly spinose; loculate pores present or absent.......................................................................... 4

4. Antennae branched; claws on metathoracic legs not digitate; some setae on body and appendages very long; loculate pores absent; ommatidia few (<40) and very large ..... ..................................................................................... Neomargarodes erythrocephalus

­ Antennae unbranched; claws on metathoracic legs sometimes digitate; setae on body and appendages all short; loculate pores present or absent; ommatidia of normal size and rather abundant (>60) ............................................................................................. 5

5. Antennal segments all much shorter than their width; abdominal spiracles sclerotised, large and oval; compound eyes particularly large, meeting medially on both dorsal and ventral surface ............................................................................... Margarodes ? chukar

­ Antennal segments clearly longer than broad; abdominal spiracles more or less unsclerotised, small and round; compound eyes not nearly meeting medially on dorsal surface of head ................................................................................................................. 6

6. Tubular ducts on abdominal segments VI and VII in a distinct group, not forming a single line; setae on antennae much shorter than width of antennal segment; claws on metathoracic legs digitate; loculate pores present ................... Margarodes prieskaensis

­ Tubular ducts on abdominal segments VI and VII few, in a single line across each segment; setae on antennae subequal to width of antennal segments; claws on metathoracic legs not digitate; loculate pores absent................. Heteromargarodes americanus