Alloxysta abdera Fergusson, 1986

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 : 118-120

Alloxysta abdera Fergusson, 1986

( Figs 2A ; 3A )

Alloxysta abdera Fergusson, 1986: 10 .

MATERIAL EXAMINED. — (5♀). M10-CAI2000- T1 -M1: 3♀ ; M10- CAI2000- T5 -M2: 2♀. 3♀ deposited at MNHN and 2♀ at UB .

DISTRIBUTION. — Previously known from England ( Fergusson 1986). First record from France.

HOSTS. — Unknown.

DIAGNOSIS. — Alloxysta abdera is characterized by its completely open radial cell, being 2.2 × longer than wide in both male and female; pronotal and propodeal carinae present; female antenna with rhinaria beginning from F4, F1 longer than pedicel and subequal to F2, F2 longer than F3, F3 slightly longer than F4 ( Fig. 2A ); male antenna with rhinaria beginning from F2, F2 curved, F1 longer than pedicel and F2, F2 shorter than F3, F3 subequal to F4. Similar to Alloxysta pallidicornis (Curtis, 1838) , but the two species can be differentiated by: 1) flagellomeres proportions in female: F2 longer than F3, F3 slightly longer than F 4 in A. abdera , whereas F2-F4 are subequal in length in A. pallidicornis ; 2) shape of propodeal carinae: forming a plate with apical setae and sides slightly curved in A. abdera , whereas the two well defined carinae are basally joined and apically separated in A. pallidicornis and 3) the proportions of the radial cell: 2.2 × longer than wide in A. abdera ( Fig. 3A ), versus 2.6 × in A. pallidicornis .

Alloxysta alpina

Ferrer-Suay & Pujade-Villar, n. sp. ( Fig. 4 )

TYPE MATERIAL. — (3♀). Holotype. ♀ ( MNHN) labelled M9- SES2000- T5 -M2, Saint-Dalmas-le-Selvage, Vallon de Sestrière , larch forest, Alt: 2011, 07-19.VIII.2009: 1♀.

Paratypes. 2 ♀ ( MNHN, UB) labelled M9-SES2000- T3 -M2, Saint-Dalmas-le-Selvage, Vallon de Sestrière , larch forest, Alt: 2011 10-23.VII.2009: 1♀ ; M10-CAI1400- T4 -M2, Forêt de Caïros , fir forest, Alt: 1387, 16-30.VIII.2010: 1♀ .

ETYMOLOGY. — The new species is named after the mountain range where it was first found.

DISTRIBUTION. — France.

HOSTS. — Unknown.

DIAGNOSIS. — Alloxysta alpina Ferrer-Suay & Pujade-Villar , n. sp. is characterized by a completely open radial cell 3.8 × longer than wide, pronotal carinae present, propodeal carinae absent, female antenna with rhinaria beginning from F4, and F2 longer than F1 and F3. It is similar to Alloxysta mara Paretas-Martínez & Pujade-Villar, 2005 , but the two species can be differentiated by flagellomere proportions: F2 longer than F1 and F 3 in A. alpina Ferrer-Suay & Pujade-Villar , n. sp., but F1-F3 subequal in length in A. mara .

DESCRIPTION

Length

Female ( Fig. 4D ): 0.9-1.2 mm. Male unknown.

Coloration

Head, mesosoma and metasoma yellowish brown. Antenna yellow, darkening towards apex. Legs yellow and veins yellowish brown.

Head

Transversely ovate, smooth and shiny, slightly wider than high in front view. Setae dense on face below and between toruli, scattered above toruli and on vertex. Transfacial line 1.1 × height of compound eye. Malar space 0.4 × height of compound eye.

Antenna

Female: 13-segmented, filiform. All antennomeres covered with sparse setae. F1-F3 smooth and thinner than remaining flagellomeres; F4-F11 with rhinaria, club shaped. Antennal formula: 2.0 (1.1); 2.8 (0.6); 3.0 (0.6); 2.8 (0.6); 3.1 (0.9) ( Fig. 4C ).

Mesosoma

Pronotum with two lateral carinae, densely setose with distolateral corners less hairy ( Fig. 4E ). Mesoscutum smooth and shiny, round in dorsal view with few scattered setae and two lines of setae on both sides. Scutellum smooth and shiny with scattered setae more abundant apically. Height of mesopleural triangle along anterior margin 1.5 × the height of mesopleuron. Propodeum densely setose and without carinae ( Fig. 4B ).

Forewing

Longer than body, 1.7 × longer than mesosoma and metasoma together, densely setose; marginal setae present ( Fig. 4A ). Radial cell open, 3.8 × longer than wide ( Fig. 4A ). R1 short and slightly curved; Rs long and slightly curved.

Metasoma

Proximal part with an incomplete ring of setae, glabrous centrally and wider laterally. Rest of metasoma smooth and shiny, with terga clearly visible.

Alloxysta arcuata (Kieffer, 1902)

( Figs 2B ; 3B ; 5A ; 6A )

Allotria (Allotria) arcuata Kieffer, 1902a: 12 .

MATERIAL EXAMINED. — (23♀). M09- BOR1400 - T4 -M1: 1♀ ; M09- BOR2000 - T4 -M1: 2♀ ; M09- SES1400 - T2 -M1: 1♀ ; M09- SES1400 - T5 -M1: 1♀ ; M09- SES1400 - T1 -M2: 5♀ ; M09- SES1400 - T2 - M2: 1♀ ; M09- SES1400 - T3 -M2: 1♀ ; M09- SES2000 - T5 -M2: 1♀ ; M10- CAI1400 - T2 -M1: 1♀ ; M10- CAI1400 - T1 -M2: 2♀ ; M10- CAI1400 - T2 -M2: 1♀ ; M10- CAI1400 - T7 -M1: 2♀ ; M10- CAI2000 - T1 -M1: 1♀ ; M10- CAI2000 - T4 -M1: 2♀ ; M10- CAI2000 - T6 -M2: 1♀. Material deposited at UB except for 8♀ deposited at MNHN .

DISTRIBUTION. — Previously known from the Palaearctic (Ferrer- Suay et al. 2012b). First record from France.

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

DIAGNOSIS. — Alloxysta arcuata is characterized by: small closed radial cell, 2.3 × longer than wide ( Fig. 3B ), pronotal carinae present ( Fig. 5A ), propodeal carinae forming a plate ( Fig. 6A ), female antenna with rhinaria beginning from F3; F1 subequal to pedicel and longer than F2, F2 subequal to F3 ( Fig. 2B ), male antenna with rhinaria beginning from F2, F2 slightly curved, F1 longer than pedicel, F1 subequal to F2, F2 shorter than F3. It is similar to Alloxysta ramulifera ( Thomson, 1862) , but the two species can be differentiated by: rhinaria beginning from F 3 in A. arcuata and from F 4 in A. ramulifera ; pronotal carinae well defined and visible in A. arcuata , rather than small and sometimes difficult to see under the pubescence in A. ramulifera ; radial cell 2.3 × longer than wide in A. arcuata ( Fig. 3B ), but only 2.0 × in A. ramulifera ; propodeal carinae with curved sides in A. arcuata , but with straight sides in A. ramulifera .

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.

FIG. 4. — Alloxysta alpina Ferrer-Suay & Pujade-Villar, n. sp.: A, Forewing; B, propodeum; C, antennae; D, body; E, pronotum. Scale bars: 50 μm.

FIG. 5. — Types of pronota: A, A. arcuata (Kieffer, 1902); B, A. brevis (Thomson, 1862); C, P.americana Baker, 1896. Scale bars: 50 μm.

FIG. 6. — Types of propodea: A, A. arcuata (Kieffer, 1902); B, A. victrix (Westwood, 1833); C, P.villosa (Hartig, 1841); D, A. trapezoidea (Hartig, 1841); E, D. subclavata Förster, 1869; F, A. citripes (Thomson, 1862). Scale bars: 50 μm.