Trioxys liui Chou & Chou, 1993

Kim, Sangjin, Sohn, Juhyeong & Kim, Hyojoong, 2024, Two new records of the genus Trioxys (Hymenoptera, Braconidae, Aphidiinae) parasitic on bamboo aphids from South Korea, Biodiversity Data Journal 12, pp. 118599-118599 : 118599

publication ID	https://dx.doi.org/10.3897/BDJ.12.e118599
persistent identifier	https://treatment.plazi.org/id/E24207D1-7A28-5DD0-A101-6E2156743BD0
treatment provided by	Biodiversity Data Journal by Pensoft
scientific name	Trioxys liui Chou & Chou, 1993
status

Treatment

Trioxys liui Trioxys liui Chou & Chou, 1993 - Chou and Chou (1993): 375-378.

Trioxys liui Trioxys sp. Starý and Schlinger (1967), 1967: 127.

Trioxys liui Trioxys bambusa Liu, 1975 - Liu (1975): 69 (nomen nudum).

Materials

Type status: Other material. Occurrence: individualCount: 6; sex: female; lifeStage: adult; occurrenceStatus: present; preparations: in 80% ethanol and dry-specimen; occurrenceID: 1A829D92-1D9D-5A03-BB52-E23958988DE4; Taxon: scientificName: Trioxys liui Chou & Chou, 1993; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Braconidae; genus: Trioxys; specificEpithet: liui; taxonRank: species; scientificNameAuthorship: Chou & Chou, 1993; Location: higherGeography: East Asia; country: South Korea; countryCode: KR; stateProvince: Jeollabuk-do; municipality: Gunsan-si; locality: 290-2, Singwan-dong ; Identification: identifiedBy: Sangjin Kim, JuHyeong Sohn, Hyojoong Kim; Event: eventDate: 08-11-2022; year: 2022; month: 11; day: 8; Record Level: institutionCode: KSNU; basisOfRecord: preserved specimen

Description

Female. Length of body about 1.99 mm (Figure Fig. 1 View Figure 1 A). Length of forewing 1.67 mm (Fig. 1 View Figure 1 K).

Head. Eyes oval, sparsely setose. Tentorial index 0.20 (Fig. 1 View Figure 1 D). Clypeus oval with 6 setae. Malar space 0.09 times as long as longitudinal eye diameter. Antenna 11-segmented (Fig. 1 View Figure 1 B). F1 equal with F2 (Fig. 1 View Figure 1 C). F1 and F2 4.1 and 3.4 times as long as their width at the middle, respectively. F1 and F2 are with two and three longitudinal placodes, respectively. Maxillary palp with four palpomeres, labial palp with two palpomeres. Ratio of eye to temple in dorsal view 0.7. Face width/height ratio 1.3 (Fig. 1 View Figure 1 D).

Mesosoma. Mesoscutum with notaulices on anterior part, dorsal surface smooth, scarcely setose (Fig. 1 View Figure 1 E). Head width/mesoscutum width ratio 1.4. Propodeum areolated, areola length/width ratio subequal (1.01 ×) (Fig. 1 View Figure 1 F). Pterostigma 3.6 times as long as width. Ratio of pterostigma length to R1 vein (= metacarpus) length 1.4. r and RS veins extended (Fig. 1 View Figure 1 D).

Metasoma. Petiole 1.5 times as long as wide at spiracles (Fig. 1 View Figure 1 I and J). Ovipositor sheath stout, concave on ventral margin. Ratio of ovipositor sheath width/length 2.0 at base (Fig. 1 View Figure 1 G). Anal prongs (= accessory prongs) almost straight, slightly curved upwards at apex. Dorsal side of prongs four setae, with one claw-like apical bristle and two setae at apex (Figure 2H).

Colour. Antenna brown; scape, pedicel and F1 yellowish-brown. Head and face dark brown, clypeus with mouth-parts yellowish-brown. Mesosoma and metasoma brown; Petiole yellowish-brown. Legs yellowish-brown with dark apices.

Parasite of: Takecallis taiwana on Sasa borealis

Kingdom	Animalia
Phylum	Arthropodo
Class	Insecta
Order	Hymenoptera
Family	Gramineae
Genus	Trioxys