Kokkocynips rileyi ( Ashmead, 1896 ) Nieves-Aldrey & Nicholls & Tang & Melika & Stone & Pujade-Villar & Buffington & Maldonado & Medianero, 2021

Nieves-Aldrey, José Luis, Nicholls, James A., Tang, Chang-Ti, Melika, George, Stone, Graham N., Pujade-Villar, Juli, Buffington, Matthew, Maldonado, Yurixi & Medianero, Enrique, 2021, Re-description and systematic re-appraisal of the genus Kokkocynips Pujade-Villar & Melika, (Hymenoptera: Cynipidae: Cynipini), including new combinations of Nearctic species and the description of a new species from Panama, Zootaxa 4938 (2), pp. 205-232 : 224

publication ID

https://doi.org/ 10.11646/zootaxa.4938.2.3

publication LSID

lsid:zoobank.org:pub:D16922EF-8508-49DB-8238-1D836B598749

DOI

https://doi.org/10.5281/zenodo.4563836

persistent identifier

https://treatment.plazi.org/id/C82E87E2-FF92-FFCF-42A0-C1085820F218

treatment provided by

Plazi

scientific name

Kokkocynips rileyi ( Ashmead, 1896 )
status

comb. nov.

Kokkocynips rileyi ( Ashmead, 1896) n. comb. ( Figs. 8 View FIG , 10D View FIG , 11F View FIG )

Andricus rileyi Ashmead, 1896 . Proc. U.S. Nat. Mus, vol. 19, p. 121.

Dryocosmus rileyi (Ashmead) : Weld, 1926b. Proc. U.S. Nat. Mus., 68(10): 44.

Material examined: holotype. Through CV Riley, Type No. 3070, USNM, 710P. Iss. July 2/77, Andricus Rileyi Ashm, USNMENT 00802310 ( USNM) .

Paratype. Type #3070, USNM . No. 710Q on red oak, St L. Mo, Oct 2, ’81. Female, USNMENT01525998. USNM .

Other material examined: USA. New York. Woodlawn, X. 9. NY, Andricus rileyi W.B. Ash, Beut Coll rec’d 1935, 1 female, USNMENT01525995 ( USNM) , Woodlawn, VIII.17. NY City, Beut Coll rec’d 1935, Dryocosmus rileyi (Ashm) , 1 female, USNMENT01525996 ( USNM) , Woodlawn, IX.2.1915. NY City, W. Beutenmuller Collector, Beut Coll rec’d 1935, 1 female, USNMENT01525997 ( USNM) .

Gall: the main body of the gall is globular, small (around 3 mm.), with a detachable yellowish fleshy knob on the dorsal side of the gall ( Fig. 11F View FIG ). Galls are attached to the midrib or lateral veins of a leaf by a slender stalk. The young gall body is yellowish, and gradually turns brownish following maturation. The larval cell occupies the whole of the interior ( Ashmead 1896).

Host plant: this species was originally described from galls collected on Quercus rubra . It has subsequently been found on all eastern US red oaks ( Weld 1926b, Weld 1959).

Biology: known only from an asexual generation. Galls collected in the autumn produced adults in September and October of the following year; in other samples adults emerged from January to March next year.

Distribution: this species was originally described from Missouri. Weld (1926b) added many localities from New York to Florida and westwards to Missouri and Texas.

Remarks: as in the case of other species discussed here, Weld (1926b) transferred this species from its original placement in Andricus to the genus Dryocosmus on the basis of the following set of characters: “mesoscutum smooth, head sculptured, claws simple, no malar groove and third segment of antenna longer than fourth”. We herewith transfer this species to Kokkocynips based on all these shared characters (with the exception of the ambiguous malar sulcus) and in addition based on the presence of the long hypopygium without long subapical setae, a sculptured band on the mesopleuron, the micropunctate metasomal tergites and the percurrent notauli (see Fig. 8 View FIG ), Our phylogenetic analysis placed K. rileyi as sister to the clade of detachable stem galling Kokkocynips species plus the other leaf galler K. decidua , although with poor support.

CV

Municipal Museum of Chungking

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Cynipidae

Genus

Kokkocynips

Loc

Kokkocynips rileyi ( Ashmead, 1896 )

Nieves-Aldrey, José Luis, Nicholls, James A., Tang, Chang-Ti, Melika, George, Stone, Graham N., Pujade-Villar, Juli, Buffington, Matthew, Maldonado, Yurixi & Medianero, Enrique 2021
2021
Loc

Andricus rileyi

Ashmead 1896
1896
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