Jezarotes mitai, Ito, Masato & Maeto, Kaoru, 2015

Ito, Masato & Maeto, Kaoru, 2015, Revision of the genus Jezarotes Uchida (Hymenoptera: Ichneumonidae: Acaenitinae), with the description of a new species from Laos, Zootaxa 3946 (3), pp. 416-426 : 422-425

Jezarotes mitai sp. nov.

( Figs 20–25)

Holotype. ♀, “Phou Samsoum, Xieng Khouang Prov, Laos, 27. May 2013, T. Mita leg.” ( SEHU). Description. ♀ (n= 1). Body length: 10.0 mm.

Head. 0.7 × as long as wide in dorsal view. Clypeus 0.5 × as long as wide, sparsely punctate, with two projections at each apex. Face 0.8 × as long as wide, strongly punctate and weakly convex ( Fig. 22 ). Frons densely punctate, with a median longitudinal carina ( Fig. 22 ). Malar space 1.0 × as long as basal width of mandible. Subocular groove present ( Fig. 22 ). Vertex and gena weakly and sparsely punctate. Occiput sparsely punctate. Occipital carina complete. OOL/OD = 1.3. POL/OD = 1.2. Antenna with 31 flagellomeres; first flagellomere 1.2 × as long as second flagellomere.

Mesosoma ( Fig. 24 ). Propleuron densely punctate. Lateral area of pronotum densely punctate and transversely striated medially. Lateral part of collar weakly punctate. Median lobe of mesoscutum strongly and densely punctate. Lateral lobe of mesoscutum strongly punctate, with median longitudinal rugae. Scutellum sparsely punctate, weakly convex in lateral view. Metapleuron weakly punctate. Propodeum strongly carinate, roundly convex in lateral view ( Fig. 24 ). Area externa of propodeum rugose and punctate. Area dentipara not clearly defined. Propodeal spiracle elongate ( Fig. 24 ). Fore wing: length 9.0 mm. Areolet absent. Vein cu-a basad of vein M+cu. Vein 3 rs-m opposite to vein 2 m-cu. Hind wing with vein cu-a intercepted at above the middle. Hind femur 3.2 × as long as maximum depth in lateral view, without blunt ventral tooth ( Fig. 24 ). Hind tibia 13.2 × as long as maximum depth. First hind tarsomere 2.3 × as long as second one, 2.7 × as long as inner spur.

Metasoma. T1 2.0 × as long as maximum width, 1.7 × as long as T2. T2 0.7 × as long as maximum width. T1 punctate and weakly striated. Other tergite weakly punctate. Ventral swelling of S1 strongly projecting ( Fig. 25 ). Subgenital plate of female reaching abdominal apex. Ovipositor sheath 1.5 × as long as hind tibia.

Coloration. Yellow ( Figs 20, 21). Antennal flagellum without a white band. Fore wing with two discrete dark markings, and apical dark mark of fore wing round shaped and not reaching vein Cu1a. Interocellar area, occiput, dorsal area of hind coxa, dorsal area of hind femur, and hind tarsus claws black. Hind tibia brown. Mesosoma with many black markings. Tegula, hind corner of pronotum, scutellum, postscutellum and propodeum light yellow. Tergites black each with an apical yellow band each segment.

Male. Unknown.

Distribution. Laos.

Bionomics. Host unknown.

Remarks. This new species most resembles J. apicalis from Taiwan, but is easily distinguished from it by the character states shown in the key below.

Key to the world’s species of Jezarotes (modified from Lee & Lee, 2009)

1. Hind femur without a blunt ventral tooth ( Fig. 24 )............................................................ 2

- Hind femur with a blunt ventral tooth ( Figs. 3–5 )............................................................ 4

2. Fore wing without a brownish blot below stigma. China................................... J. yanensis Sheng & Sun

- Fore wing with a brownish blot below stigma............................................................... 3

3. Antennal flagellum with a white band; ventral swelling of S1 only weakly projecting; apical dark mark of fore wing extended downward and reaching vein Cu1a; subgenital plate of female reaching far beyond abdominal apex. Taiwan.................................................................................................... J. apicalis (Sonan)

- Antennal flagellum without a white band; ventral swelling of S1 strongly projecting ( Fig. 25 ); apical dark mark of fore wing round shaped and not reaching vein Cu1a; subgenital plate of female reaching abdominal apex. Laos...... J. mitai sp. nov.

4. Epicnemial carinae broadly interrupted in the middle; trochanter and trochantellus of hind leg brown. Korea................................................................................................. J. dentatus Lee & Lee

- Epicnemial carinae complete, not interrupted in the middle; trochanter and trochantellus of hind leg yellow............. 5

5. Vein rs-m distad of 2 m-cu by 0.7 × its length; stigma brown; T1 1.8 × as long as width of its apex. China..... J. levis Sheng

- Vein rs-m distad of 2 m-cu by 1.2 × its length; stigma black; T1 1.9–2.8 × as long as width of its apex. Japan, Korea, Far East Russia.............................................................................. J. tamanukii Uchida

Figures

FIGURES 22 – 25. J. mitai sp. nov., female (holotype). 22, head, frontal view; 23, hind leg, lateral view; 24, mesosoma, lateral view; 25, basal part of metasoma, lateral view.

FIGURES 1 – 8. J. tamanukii (Uchida), females from Niigata Pref. (1, 2) and Nara Pref. (3, 4), and males from Kanagawa Pref. (5, 6) and Nara Pref. (7, 8).