Alloxysta castanea ( Hartig, 1841 )

Ferrer-Suay, Mar, Selfa, Jesús, Villemant, Claire & Pujade-Villar, Juli, 2015, Charipinae Dalla Torre & Kieffer, 1910 (Hymenoptera: Cynipoidea: Figitidae) from the Mercantour National Park (Alpes-Maritimes, France), with descriptions of three new species, Zoosystema 37 (1), pp. 115-138 : 122

Alloxysta castanea ( Hartig, 1841)

( Figs 2E ; 3E )

Xystus castaneus Hartig, 1841: 352 .

MATERIAL EXAMINED. — (105♀). M9- BOR1400 - T1 -M1: 1♀ ; M9- BOR1400 - T2 -M1: 4♀ ; M9- BOR1400 - T3 -M1: 1♀ ; BOR1400- T4 -M1: 1♀ ; BOR1400- T5 -M1: 1♀ ; BOR1400- T6 - M1: 4♀ ; BOR1400- T8 -M1: 1♀ ; M9- BOR1400 - T2 -M2: 9♀ ; M9- BOR1400 - T8 -M2: 1♀ ; M9- BOR2000 - T2 -M1: 1♀ ; M9- BOR2000 - T3 -M1: 5♀ ; M9- BOR2000 - T4 -M1: 2♀ ; M9- BOR2000 - T6 -M1: 3♀ ; M9- SES1400 - T5 -M1: 1♀ ; M9- SES1400 - T1 -M2: 2♀ ; M9- SES1400 - T2 -M2: 7♀ ; M9- SES1400 - T3 - M2: 12♀ ; M9- SES1400 - T4 -M2: 1♀ ; M9- SES1400 - T6 -M2: 3♀ ; M9- SES1400 - T8 -M209: 2♀ ; M9- SES2000 - T3 -M1: 4♀ ; M9- SES2000 - T4 -M1: 10♀ ; M9- SES2000 - T5 -M1: 4♀ ; M9- SES2000 - T4 -M2: 1♀ ; M9- SES2000 - T6 -M2: 1♀ ; M10- CAI1400 - T2 - M1: 1♀ ; M10- CAI1400 - T5 -M1: 1♀ ; M10- CAI1400 - T6 -M1: 3♀ ; M10- CAI1400 - T7 -M1: 2♀ ; M10- CAI1400 - T1 -M2: 2♀ ; M10- CAI1400 - T2 -M2: 1♀ ; M10- CAI1400 - T3 -M2: 1♀ ; M10- CAI1400 - T4 -M2: 2♀ ; M10- CAI1400 - T6 -M2: 2♀ ; M10- CAI1400 - T7 - M2: 1♀ ; M10- CAI2000 - T1 -M1: 2♀ ; M10- CAI2000 - T6 -M1: 1♀ ; M10- CAI2000 - T1 -M2: 1♀ ; M10- CAI2000 - T2 -M2: 1♀ ; M10- CAI2000 - T3 -M2: 2♀. Material deposited at MNHN except for 50♀ deposited at UB .

DISTRIBUTION. — Species known from the Holarctic region (Ferrer- Suay et al. 2012a). Previously cited in France by Kieffer (1902a: 10, 15; 1904: 595), De Gaulle (1908: 26) and Cavro (1954: 12).

HOSTS. — See Charipinae Worldwide Catalogue (Ferrer-Suay et al. 2012a).

DIAGNOSIS. — Alloxysta castanea is characterized by: a partially open radial cell being 2.4 × longer than wide ( Fig. 3E ), pronotal and propodeal carinae present, male and female antenna with rhinaria beginning from F3, F2-F4 subequal in length ( Fig. 2E ), F1 and F2 slightly curved in male. It is similar to Alloxysta aurata Belizin, 1968 but the two species can be differentiated by the ratio between F2 and F3: F2 subequal to F 3 in A. castanea but F2 shorter than F 3 in A. aurata and the proportions of the radial cell: 2.3 × longer than wide in A. castanea , versus 3.0 × in A. aurata .

Alloxysta circumscripta ( Hartig, 1841) ( Figs 2F ; 3F )

Xystus circumscriptus Hartig, 1841: 352 .

MATERIAL EXAMINED. — (12♀). M9-BOR1400- T1 -M1: 3♀ ; M9-BOR1400- T3 -M1: 1♀ ; M9-BOR1400- T8 -M2: 1♀ ; M9- BOR2000- T6 -M1: 2♀ ; M9-SES1400- T2 -M2: 4♀ ; M9-SES2000- T4 - M2: 1♀. 6 ♀ deposited at MNHN and 6♀ at UB .

DISTRIBUTION. — Species known from the Palaearctic region (Ferrer-Suay et al. 2012a). Previously cited from France by De Gaulle (1908: 26).

HOSTS. — See Charipinae Worldwide Catalogue (Ferrer-Suay et al. 2012a).

DIAGNOSIS. — Alloxysta circumscripta is characterized by its closed radial cell being 2.5 × longer than wide ( Fig. 3F ), pronotal carinae present, propodeal carinae absent, female antenna with rhinaria beginning from F5, F2 shorter than F3, F3 shorter than F4 ( Fig. 2F ), male antenna rhinaria beginning from F4, F2 longer than F3, F3 shorter than F4. It is similar to Alloxysta consobrina ( Zetterstedt, 1838) but they can be differentiated by the proportion between flagellomeres: F1 subequal to F2, F2 shorter or subequal to F 3 in A. circumscripta ( Fig. 2F ), versus F1 longer than F2, F2 subequal to F 3 in A. consobrina ( Fig. 2I ); proportions of radial cell: 2.5 × longer than wide in A. circumscripta ( Fig. 3F ) but 2.7 in A. consobrina ( Fig. 3I ).

Figures

FIG. 2. — Types of Alloxysta Förster, 1869 antennae: A, A. abdera Fergusson, 1986; B, A. arcuata (Kieffer, 1902); C, A. brachycera Hellén, 1963; D, A. brevis (Thomson, 1862); E, A. castanea (Hartig, 1841); F, A. circumscripta (Hartig, 1841); G, A. citripes (Thomson, 1862); H, A. fracticornis (Thomson, 1862); I, A. conso- brina (Zetterstedt, 1838); J, A. longipennis (Hartig, 1841); K, A. macrophadna (Hartig, 1841); L, A. melanogaster (Hartig, 1840); M, A. mullensis (Cameron, 1883); N, A. nigrita (Thomson, 1862); O, A. obscurata (Hartig, 1840); P, A. pilipennis (Hartig, 1840); Q, A. postica (Hartig, 1841); R, A. proxima Belizin, 1962; S, A. pusilla (Kieffer, 1902); T, A. victrix (Westwood, 1833). Scale bars: 50 μm.

FIG. 3. — Types of Alloxysta Förster, 1869 radial cells: A, A. abdera Fergusson, 1986; B, A. arcuata (Kieffer, 1902); C, A. brachycera Hellén, 1963; D, A. brevis (Thomson,1862); E, A. castanea (Hartig, 1841); F, A. circumscripta (Hartig, 1841); G, A. citripes (Thomson, 1862); H, A. fracticornis (Thomson,1862); I, A. conso- brina (Zetterstedt, 1838); J, A. longipennis (Hartig, 1841); K, A. macrophadna (Hartig, 1841); L, A. melanogaster (Hartig, 1840); M, A. mullensis (Cameron, 1883); N, A. nigrita (Thomson, 1862); O, A. obscurata (Hartig, 1840); P, A. pilipennis (Hartig, 1840); Q, A. postica (Hartig, 1841); R, A. proxima Belizin, 1962; S, A. pusilla (Kieffer, 1902); T, A. victrix (Westwood, 1833). Scale bars: 50 μm.