Diaspiniphagus Silvestri
publication ID |
https://doi.org/ 10.5281/zenodo.205125 |
DOI |
https://doi.org/10.5281/zenodo.6182321 |
persistent identifier |
https://treatment.plazi.org/id/03B61A46-1B1D-7829-FF5A-F98879047E90 |
treatment provided by |
Plazi |
scientific name |
Diaspiniphagus Silvestri |
status |
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Diaspiniphagus Silvestri, 1927 , 35. Type species Prospalta similis, Masi, 1908 , by original designation. Primaprospaltella DeBach & La Salle, 1981: 644 . Type species Prospalta murtfeldtae Howard, 1894 , by original designation. Synonymy with Diaspiniphagus by Yasnosh, 1987: 390.
Diaspiniphagus was synonymised with Coccophagoides View in CoL by Mercet (1928) and this synonymy was accepted by all later authors, including Graham (1976) and Hayat (1998) until Yasnosh (1987) presented differences between the two genera, and resurrected Diaspiniphagus as a valid genus. Hayat (1998) preferred to treat Diaspiniphagus as a species group ( moeris group) of Coccophagoides View in CoL . However, the re-examination of specimens of C. moeris (Walker) originating from England (Alam’s Collection, ZDAMU; two specimens sent several years ago by Dr. V. A. Yasnosh, Tbilisi, Georgia) and the recent collection of a single specimen from India described here as a new species, leads me to consider Diaspiniphagus as a genus distinct from Coccophagoides View in CoL . This genus is briefly diagnosed and a list of the world species is given.
Diagnosis. Similar to Coccophagoides except for the following characters: scutellum with 4 setae; each axilla with one seta ( Fig. 1 View FIGURES 1 – 8. 1 – 4 ); fore wing with parastigma short, usually less than one-third length of marginal vein; marginal vein long, at least two-thirds length of costal cell ( Fig. 3 View FIGURES 1 – 8. 1 – 4 ). Female gaster with seven tergites ( Fig. 2 View FIGURES 1 – 8. 1 – 4 ); hypopygium extending at most three-fourths length of gaster, usually less. Male genitalia with phallobase elongate (about 4-5 as long as broad), basally rounded and gradually narrowed apically; parameres and digiti absent ( Fig. 4 View FIGURES 1 – 8. 1 – 4 , reproduced from Viggiani & Battagalia, 1984: Fig. VII.1)
Comments. As defined above, Diaspiniphagus is extremely similar to Encarsia Förster (1878) (for recent literature see Hayat, 1998; Schmidt & Polaszek, 2007) differing possibly only in the structure of the antennal flagellum which in Diaspiniphagus is compact, elongate and spindle-shaped. But a spindle-shaped flagellum, presence of more than 2 setae on the submarginal vein, and a 2-segmented maxillary palp are not uniquely derived (= synapomorphic) characters of Diaspiniphagus . These characters are also found in one or other species of Encarsia . It is very likely that a phylogenetic/cladistic analysis (based on morphology and molecules) may eventually prove Diaspiniphagus and Encarsia to be synonyms.
Diaspiniphagus is distributed mainly in the Nearctic region (4 species), with one species each described from Haiti, Australia, China, and the Palaearctic region. This is the first record of Diaspiniphagus from India.
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Kingdom |
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Phylum |
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Class |
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Order |
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Family |
Diaspiniphagus Silvestri
Hayat, Mohammad 2011 |
Primaprospaltella
DeBach & La Salle 1981: 644 |
Diaspiniphagus
Silvestri 1927 |
Prospalta similis
Masi 1908 |
Prospalta murtfeldtae
Howard 1894 |