Exallomochlus hispidus (Morrison)

Family

Pseudococcidae

Field characters

We have been unable to locate a description of the field appearance of this species in the literature. Body usually rotund. Based on morphology of slide mounted female, probably with 18 pairs of lateral filaments and without an ovisac. On stems and fruit of host.

Validation characters

Discoidal pores peg like; cerarian setae with acute apices; ventral multilocular pores in small numbers, sometimes absent, when present restricted to vulvar area; most cerarii with 3 or more conical setae; ventral oral-collar tubular ducts showing same distribution as multiloculars; some dorsal setae longer than cerarian setae; circulus present and rectangular or hour-glass shaped; translucent pores on hind coxa and tibia.

Comparison

Within Exallomochlus this species is most similar to E. liti Williams by having peg-like discoidal pores, cerarian setae with acute apices, translucent pores on hind coxa and tibia, elongate and somewhat enlarged dorsal filamentous setae, and ventral multilocular pores restricted to abdomen. Exallomochlus hispidus differs by having ventral multiloculars and oral-collar tubular ducts absent or confined to vulvar area, whereas E. liti has them on venter of segments V to VIII.

U.S. quarantine notes

This species was intercepted at U. S. ports-of-entry 309 times on a variety of hosts between 1995 and 2012, with specimens originating from Brunei Darussalam, Cambodia, China, France, Hong Kong, India, Indonesia, Japan, Laos, Malaysia, Micronesia, The Philippines, Singapore, Sri Lanka, Taiwan, Thailand, The United Kingdom of Great Britain and N. Ireland, and Vietnam. We also have examined specimens taken at U. S. ports-of-entry from Indonesia, Maylasia, The Philippines, Singapore, Thailand, and Vietnam on Annona, Durio, Garcinia, Lansium, Licula, and Nephelium. ScaleNet lists the species from more than 25 families of host plants and distribution records are all for the Oriental zoogeographic region. One other species of Exallomochlus other than E. camur Williams, E. hispidus, and E. philippinensis Williams has been taken in quarantine, E. liti Williams (The Philippines, on Poikilospermum and Lansium).

Important references

WilliaWa1988a; WilliaGr1992; Willia2004.

Scalenet catalog and citation list

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