Paraleyrodes citricolus Costa Lima

Nomenclature : 

    Paraleyrodes citricolus  Costa Lima [Costa Lima, 1928: 136].

Biology [Martin, 1996: 1856] Type material for this species was unavailable until  it became established on Madeira providing ample specimens for study.

Host : Lauraceae: Persea americana  [Martin, 1996: 1856];  Rutaceae: Citrus spp [Costa Lima, 1928: 136][Martin, 1996: 1856].

DISTRIBUTION: Nearctic: Mexico [Martin, 1996: 1856][S.E.L.];  Neotropical:  Belize [Martin 2004 Zootaxa: 66][Martin, 1996: 1856], Brazil [Martin 2004 Zootaxa: 66][Costa Lima, 1928: 136][Martin, 1996: 1856][S.E.L.],  Colombia [Martin 2004 Zootaxa: 66][Martin, 1996: 1856][S.E.L.], Costa Rica [Martin 2004 Zootaxa: 66][Martin, 1996: 1856][S.E.L.], Ecuador [Martin 2004 Zootaxa: 66][Martin, 1996: 1856], El Salvador [S.E.L.], Guatemala [Martin 2004 Zootaxa: 66][Martin, 1996: 1856][S.E.L.], Panama [Martin 2004 Zootaxa: 66][Martin, 1996: 1856][S.E.L.], & Uruguay [S.E.L.];  Palaearctic:  Azores [Martin 2004 Zootaxa: 66], Madeira Islands [Martin 2004 Zootaxa: 66][Martin, 1996: 1856]

Taxonomy [Costa Lima, 1928: 136][Martin, 1996: 1854-1855]

First reduced abdominal compound pore closer to the midline than the other abdominal compound pores;  reduced compound pores both about one-fourth (10-15 μm) in diameter. 

The larger compound cephalic & 4 posterior abdominal  compound pores with a diameter of 45-55 μm.  The central lumen of each large compound pore consist of a distinctive central group of 7 to 9 polygonal cells surrounded by an inner annulus (ring) of elongated-oval segments;  the outer annulus of "spinneret" cells present giving rise to the rod-shaped splines.

Simple discoidal pore associated with the following abdominal compound pores on segments V thru VII;  but, lacking a pore between the vasiform orifice and the compound pore on segment VIII.

Anterior marginal setae short (8 to 12 micrometers long); posterior marginal setae longer (up to 65 micrometers long);  submargin with a single row of 14 long setae similar in length to posterior marginal setae.

Related species: the intricate design of the central lumen (7-9 polygonal cells at the center) separates this species from all other species of Paraleyrodes.

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