Monoctonus crepidis (Haliday 1834)

Čkrkić, Jelisaveta, Petrović, Andjeljko, Kocić, Korana, Kavallieratos, Nickolas G., Hebert, Paul D. N. & Tomanović, Željko, 2019, Review of the world Monoctonina Mackauer 1961 (Hymenoptera, Braconidae, Aphidiinae): key for their identification and descriptions of five new species, Zootaxa 4691 (4), pp. 359-385 : 374-375

Monoctonus crepidis (Haliday 1834)

( Figs 7d , 8d , 9d )

Aphidius crepidis Haliday 1834: 94

Material examined. Serbia, Vlasina, 11 VIII 2006, 3 females, 2 males, unknown aphid from Hieracium sp.; Vlasina-Čemernik, 12 VIII 2006, 2 females, 2 males, reared from Nasonovia sp. on Hieracium sp.; 4 VIII 2011, 25 females, 10 males, unknown aphid on Hieracium pilosella ; Stara planina-Babin zub, 4 IV 2010, 19 females, 16 males, unknown aphid from Hieracium sp., 7 VII 2010, 84 females, 28 males, reared from Nasonovia ribisnigri (Mosley) on Crepis sp.; Kopaonik, 14 VII 1988, 1 female, unknown aphid host and plant; 27 VII 2010, 24 females, 18 males, reared from Nasonovia sp. on Crepis sp.; 42 females, 11 males, reared from Nasonovia sp. on Hieracium sp.; 17 VII 2013, 17 females, 9 males, reared from Nasonovia ribisnigri on Hieracium pilosella ; 9 females, 1 male, reared from Nasonovia ribisnigri on Hieracium sp.; 41 females and males, reared from Nasonovia pilosellae (Börner) on Hieracium aurantiacum ; 5 females, 4 males, reared from Nasonovia sp. on Hieracium pilosella ; 6 females reared from Nasonovia sp. on Lapsana communis ; Kopaonik-Kriva reka, 7 VIII 2011, 2 females, 2 males, reared from Nasonovia ribisnigri on Hieracium pilosella ; Kras-Adžine livade, 1 VI 2011, 152 females, 38 males, reared from Nasonovia sp. on Hieracium murorum ; Golija, Jankov kamen, 11 VII 2011, 7 females, 4 males, reared from Nasonovia sp. on Hieracium pilosella ; 6 females reared from Nasonovia sp. on Hieracium murorum ; Nova Varoš, 7 VII 2013, 200 females and males, reared from mixed colony of Hyperomyzus picridis (Börner & Blunck) and Nasonovia sp. on Picris hieracioides ; Montenegro, Škrka, 7 VIII 2005, 2 females reared from Nasonovia sp. on Hieracium sp.; Andrijevica, 22 VII 2012, 10 females, 3 males, reared from Nasonovia sp. on Hieracium sp.; Durmitor-Crno jezero, 10 VII 2013, 100 females and males reared from Nasonovia ribisnigri on Hieracium sp.; Komovi, 9 VII 2013, 5 females, 2 males, reared from Nasonovia sp. on Hieracium sp.; Pljevlja, Dragaši, 21 VII 2017, 27 females, 26 males, reared from Nasonovia sp. on Hieracium pilosella ; Ljubišnja, Jabučno, 22 VII 2017, 2 females, 1 male, Nasonovia sp. on Hieracium sp.

Female. Head. Eyes oval, medium sized, sparsely setose. Malar space equal to 0.2 of longitudinal eye diameter. Tentorial index 0.2. Clypeus oval with 4–5 setae. Maxillary palps with four palpomeres, labial palps with three palpomeres. Antenna with 13 antennomeres, filiform, setae on flagellomeres semierect, subequal to flagellomere diameter. Flagellomere 1 (F1) about 3.2 (2.4–4.1)× as long as wide, with 0–2 longitudinal placodes. F2 about 2.6 (2.2–3.8)× as long as wide, with 1–4 longitudinal placodes. F3, F4 and F5 with 2–5, 1–4 and 2–4 longitudinal placodes, respectively. F1 about 1.2 (1.1–1.4)× longer than F2.

Mesosoma. Mesoscutum without notaulices, dorsal surface sometimes with two irregular longitudinal rows of setae. Head width/mesoscutum width ratio 1.3. Propodeum areolated, with wide central pentagonal areola ( Fig. 7d ).

Fore wing ( Fig. 8d ). Wing length about 2 (1.7–2.1) mm, width about 0.8 (0.7–0.9) mm. Stigma narrow, about 5.3 (4.8–6)× as long as wide and about 3.2 (2.2–4.6)× as long as distal abscissa of R1. Veins m-cu and 2RS visible, second half of both veins sometimes colourless. Veins r and 3RS distinct.

Metasoma. Petiole about 1.9 (1.7–2.1)× as long as wide at spiracles. Dorsal disc of petiole rugose, with 3–6 long setae on each side. Ovipositor sheath distinctly ploughshare shaped. Ovipositor sheath length/width ratio about 2.4 (2.3–2.5) ( Fig. 9d ).

Colour. Head brown, eyes black, mouthparts yellow. Scapus and pedicel brown, F1 brown with a yellow narrow ring at the base, remainder of antenna brown. Mesonotum brown, propodeum and legs light brown. Wings hyaline with brown venation. Petiole and rest of metasoma brown, ovipositor sheath yellow to light brown. Body length 2.3 mm.

Male. Head. Eyes oval, medium sized, sparsely setose. Malar space equal to about 0.3 of longitudinal eye diameter. Tentorial index 0.4. Clypeus oval with 9–10 setae. Maxillary palps with four palpomeres, labial palps with three palpomeres. Antenna with 15–16 antennomeres, filiform, setae on flagellomeres semierect, subequal to flagellomere diameter. Flagellomere 1 (F1) about 2.2 (1.9–2.3)× as long as wide, with 4–9 longitudinal placodes. F2 about 1.9 (1.7–2)× as long as wide, with 5–8 longitudinal placodes. F3, F4 and F5 with 4–7, 3–7 and 3–8 longitudinal placodes, respectively. F1 1.1× longer than F2.

Mesosoma. Mesoscutum mostly without notaulices (if present, notaulices incomplete and visible only in anterior part), scarcely setose in lower half. Head width/mesoscutum width ratio 1.2. Propodeum areolated, with wide central pentagonal areola.

Fore wing. Wing length about 1.9 (1.8–2) mm, width about 0.8 (0.78–0.9) mm. Stigma narrow, about 4.5 (4–5)× as long as wide and about 2.9 (2.5–3.3)× as long as distal abscissa of R1. Veins m-cu and 2RS visible, second half of 2RS sometimes colourless, in rare cases 2RS completely absent. Veins r and 3RS distinct.

Metasoma. Petiole about 1.9 (1.7–1.9)× as long as wide at spiracles. Dorsal disc of petiole moderately rugose, with 4-6 long setae on each side.

Colour. Head and antenna brown, mouthparts light brown. Mesonotum, propodeum and legs light brown. Wings hyaline with brown venation. Petiole and rest of metasoma light brown. Body length 1.8 mm.

Hosts: Hyperomyzus hieracii (Börner) on Hieracium sp.; Nasonovia pilosellae on Hieracium pilosella ; Nasonovia ribisnigri on Hieracium hoppeanum , H. pilosella ; Nasonovia sp. on Cichorium alpine , C. intybus , Hieracium guentheri-becki , H. murorum , H. pilosella , H. pseudobifidum , Lapsana communis

Distribution. Holarctic.

Figures

FIGURE 7. Propodeum, females. a—F. pseudoplatani; b—H. angustivalva; c—M. caricis; d—M. crepidis; e—M. ligustri; f—M. mali; g—M. nervosus; h—M. paulensis.

FIGURE 8. Fore wing, females. a—F. pseudoplatani; b—H. angustivalva; c—M. caricis; d—M. crepidis; e—M. ligustri; f—M. mali; g—M. nervosus; h—M. paulensis.

FIGURE 9. Ovipositor sheaths. a—F. pseudoplatani; b—H. angustivalva; c—M. caricis; d—M. crepidis; e—M. ligustri; f—M. mali; g—M. nervosus; h—M. paulensis.