Paracoccus lycopersici Ezzat & McConnell

Family

Pseudococcidae

Field characters

No information available

Validation characters

Oral-rim tubular ducts present ventrally on head and anterior thorax; multilocular pores absent from lateral areas of abdominal segments; 7-8 pairs of cerarii; cerarii absent from head and anterior thorax; multilocular pores on segments III or IV-VIII, absent from thorax and head; cluster of oral-collar tubular ducts near anterior spiracle; oral collars present laterad of mid pair of legs; circulus present; cerarii with 2 conical setae; oral-rim tubular ducts covering dorsum, absent from segment VIII; anal bar present.

Comparison

Paracoccus lycopersici is similar to P. ferrisi by having oral collars near the anterior spiracle, dorsal oral-rim tubular ducts scattered over surface, multilocular pores absent from thorax. Paracoccus lycopersici can be distinguished (characters of P. ferrisi are in parentheses) by normally having fewer than 8 pairs of cerarii (usually more than 8) restricted to abdomen and posterior thorax (some present on anterior thorax and head).

U.S. quarantine notes

This species was intercepted at U. S. ports-of-entry 6 times between 1995 and 2012, with specimens originating from Mexico. We also have examined specimens taken in quarantine from Mexico (Leucena, tomato). ScaleNet lists hosts in 3 plant families, Asteraceae, Scrophulariaceae and Solanaceae, but it is most commonly intercepted on sage (Lamiaceae – Mint family). ScaleNet distribution records for P. lycopersici include Mexico and Chile only. Several species of Paracoccus other than P. brunerae (Brain), P. ferrisi Ezzat & McConnell, P. herreni Williams & Granara de Willink, P. interceptus Lit, P. lycopersici, P. marginatus Williams & Granara de Willink, P. mexicanus Ezzat & McConnell and P. solani Ezzat & McConnell have been intercepted at U. S. ports-of-entry including: P. hamoni Williams and Granara de Willink (Mexico, on Cephalocereus); P. circuliprivis Ezzat and McConnell (Mexico, on Thomsoniella); P. invectus Williams (Thailand and India, on orchids, including Dendrobium); and P. reductus Ferris (Mexico, on Yucca).

Important references

EzzatMc1956; WilliaGr1992.

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