Arhaconotus longicaudatus Long, 2023

Oanh, Nguyen Thi, Long, Khuat Dang, Hiep, Nguyen Duc & Nghiep, Hoang Thi, 2023, Review of the genus Arhaconortus Belokobylskij, 2000 (Hymenoptera: Braconidae: Doryctinae), with description of three new species from Vietnam, Zootaxa 5380 (5), pp. 475-486 : 482-484

publication ID	https://doi.org/ 10.11646/zootaxa.5380.5.4
publication LSID	lsid:zoobank.org:pub:2A76161E-931C-48FC-AD78-E7DF4E9F416F
DOI	https://doi.org/10.5281/zenodo.10254317
persistent identifier	https://treatment.plazi.org/id/03ABC20A-FFE5-E023-FF3B-3C43FD32C1DA
treatment provided by	Plazi
scientific name	Arhaconotus longicaudatus Long
status	sp. nov.

Treatment

Arhaconotus longicaudatus Long , sp. nov.

( Figures 5 View FIGURE 5 , 6A–K View FIGURE 6 )

Material. Holotype, ♀, “Doryc. 645 ”, ( IEBR), NW Vietnam: Hoa Binh, Yen Thuy, Lac Thinh , forest, MT, 20°23’06’’N 105°34’11’’E, 315 m, 25.iii.2002, KDLong. GoogleMaps

Description. Female, body length 3.7 mm; fore wing length 3.5 mm; ovipositor sheath 3.2 mm; antenna 6.7 mm ( Fig. 5 View FIGURE 5 ).

Head. Antenna complete, with 36 flagellomeres; scapus length dorsally 1.6 × as long as its maximum width; first flagellomere as long as second flagellomere; in dorsal view, head width 1.6 × its median length); head roundly narrowed below eyes; occipital carina complete, evenly curved; median length of head 8.25 × as long as temple ( Fig. 6A View FIGURE 6 ); height of eye 3.75 × temple; ocelli small, basal side of ocellar triangle as long as lateral sides; OOL: OD: POL = 5.0: 2.0: 2.5 ( Fig. 6A View FIGURE 6 ); in frontal view, eye 2.4 × as high as broad; malar space height 0.4 × height of eye, and 1.4 × basal width of mandible; face width 1.2 × height of eye; and 1.4 × height of face and clypeus combined ( Fig. 6B View FIGURE 6 ); hypoclypeal depression width as long as distance from edge of depression to eye; 0.45 × as wide as face, and 1.8 × as wide as basal width of mandible; distance between tentorial pits 1.1 × as long as long distance from pit to eye; in lateral view, maxillary palp 1.4 × head length; occipital carina joined below by a ridge with hypostomal carina upper base of mandible ( Fig. 6C View FIGURE 6 ); transverse diameter of eye 2.0 × length of temple ( Fig. 6C View FIGURE 6 ); frons almost flat, finely granulate; vertex and occiput finely granulate; temple shiny, mostly mat; face setose, granulate.

Mesosoma. Length mesosoma 1.95 × its height ( Fig. 6E View FIGURE 6 ); prescutellar depression 0.3 × as long as scutellum, scutellum finely granulate ( Fig. 6D View FIGURE 6 ); propodeum with marginate areola posteriorly, and median carina in basal 0.45 of propodeum ( Fig. 6F View FIGURE 6 ); propleuron coriaceous; lateral side of pronotum with long setae posteriorly, finely granulate ventrally, sparsely crenulate medially; dorsally, median transverse carina of granulate pronotum deviding it into two equal parts; mesopleuron sparsely setose, granulate medially, smooth ventrally; precoxal sulcus rather long, narrow anteriorly, wider posteriorly, mostly smooth ( Fig. 6E View FIGURE 6 ), metapleuron with long setae, granulate; notauli narrow, crenulate antero-medially, merging in to wide irregular rugose area posteriorly ( Fig. 6D View FIGURE 6 ); scutellum densely granulate; propodeum with marginate areola posteriorly, and median carina in basal 0.5 of propodeum; basolateral areas of propodeum marginate, granulate; rugulose along basal carina; propodeal areola transversely rugulose ( Fig. 6F View FIGURE 6 ).

Wings. Fore wing 3.5 × as long as its maximum width; pterostigma 3.2 × as long as wide; vein r arising from middle of pterostigma; vein 1-R1 1.4 × as long as pterostigma; vein 3-SR 3.2 × vein r, and 0.5 × vein SR1, and 1.5 × vein 2-SR; vein m-cu distinctly postfurcal; second submarginal cell of fore wing parallel-sided, basal length 2.8 × as long as its maximum width ( Fig. 6I View FIGURE 6 ), and 1.2 × as long as first subdiscal cell; first subdiscal cell near rectangularly closed on level of vein m-cu; vein 1-CU1: cu-a: 2-CU1= 3: 2: 24 ( Fig. 6I View FIGURE 6 ). Hind wing 5.9× as long as its maximum width; vein M+CU 0.6 × vein 1-M; vein 1-M 3.25 × vein 1r-m ( Fig. 6K View FIGURE 6 ).

Legs. Fore tarsus 1.25 × as long as fore tibia; inner side of fore tibia with raw of 8 spines; hind coxa finely and densely granulate; hind femur, tibia and basitarsus 3.9, 10.0, and 8.3 × their maximum width, respectively; hind femur with short sparse semi-erected setae ventrally, length of seta 0.7 × as long as maximum width of femur; outer side of hind tibia with sparse semi-erected setae, length of seta 0.7 × as long as maximum width of hind tibia; inner tibial spur 0.2 × as long as hind basitarsu; hind tarsus 0.5 × as long as hind tibia; basitarsus 0.96 × as long as second-fifth tarsus combined; second tarsus 0.4 × as long as basitarsus, and 1.7 × as long as telotarsus (without pretarsus); fourth tarsus 0.7 × telotarsus.

Metasoma. Metasoma 1.1 × as long as head and mesosoma combined; first tergite gradually widened from base to apex; maximum width of first tergite 1.5 × its minimum width ( Fig. 6G View FIGURE 6 ); length of first metasomal tergite 0.9 × apical width, and subequal to propodeum; length of second tergite 0.7 × as long as its basal width, and as long as length of third tergite ( Fig. 6G View FIGURE 6 ); first metasomal tergite with baso-lateral carinae, largely striate; second suture deep and wide, sparsely crenulate, second tergite with smooth basal area separated with distinct crenulate furrow ( Fig. 6G View FIGURE 6 ); third tergite with smooth basal area separated with distinct crenulate furrow; median length of basal smooth area as long as striate apical half of the tergite; fourth-fifth tergites punctulate basally, striate medio-apically, with smooth extreme apical area; sixth tergite with apical emargination, surface of sixth tergite with median transverse carina-like rugosity, densely punctulate on basal half, semi-circularly striate on apical half ( Fig. 6H View FIGURE 6 ).

Colour. Head, antenna yellow; palpi pale yellow; all the legs pale yellow; wing veins yellow; pterostigma yellow, paler basally and apically; mesonotum, mesopleuron brownish-yellow; metapleuron, propodeum blackishbrown; first-second metasomal tergites dark-brown; third-six tergites largely yellowish brown basally, yellow apically; ovipositor sheath and ovipositor yellow ( Fig. 5 View FIGURE 5 ).

Male. Unknown.

Etymology. “longus” (Latin for “long”, and and “cauda”, Latin for “tail, appendage”), because of long ovipositor among all already known Arhaconotus species.