Liosphex longicornis Lohrmann, sp. nov.
Creators: name: Lohrmann, Volker
name: Ohl, Michael
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Rhopalosomatidae
Liosphex
Liosphex longicornis

description: Liosphex longicornis Lohrmann sp. nov.
(Figs 18, 47–49)
Holotype. Female. COSTA RICA: Puntarenas, RF Golfo Dulce, 24km W Piedras Blancas, 200m, February 1993, collector: P. Hanson (MUCR).
Paratype. COSTA RICA: same data as holotype, March 1993, collector: P. Hanson (1 Ƥ, MUCR).
Diagnosis. Females of L. longicornis are unique in Liosphex in the combination of the following characters: long and slender flagellomeres (flagellomere II at least 5.0× as long as wide, even flagellomere VII is at least 3.0× as long as wide); anterior margin of pronotum with a median notch (as in Fig. 19); forewing 1cu-a distad of M by 2.25–2.8× its length; wings stramineous, more intensively on anterior part of the forewing; body stramineous with black markings. Although this species is very similar to L. achuar, especially in color, they can easily be distinguished by the flagellomere proportions and presence or absence of a pronotal notch.
Description of the female. Head (Figs 18, 47): Maximum width in frontal view 1.8 mm [1.8–1.9 mm]. UID 1.4× [1.4–1.45×] LID. Flagellomeres long and slender (flagellomere II 5.4× [5.3–5.4×], flagellomere VII is 3.3× [3.3×] as long as wide). Apical bristles present on flagellomeres I–IV, longer bristle on flagellomere I 0.5× [0.4–0.5×] its length. OOD 1.86× [1.86×], IOD 1.0× [1.0×], MOD 0.86× [0.86–1.0×] LOD.
Mesosoma: Length of mesosoma: 3.2 mm [3.3 mm]. Anterior margin of pronotum with a median notch (as in Fig. 19).
Wings: Maximum length of forewing: 7.1 mm [7.1–7.8 mm], 2.2× [2.2–2.35×] as long as mesosoma. Forewing 1cu-a inclivous, distad M by at least 2.8× [2.25–2.8×] its length. M-cu distinctly curved. 1Rs 2.1– 2.4× as long as high, its basal angle clearly smaller than 90° (Fig. 9). Rs of hindwing reclivous.
Legs: Forebasitarsomere short, length of antennal cleaner 0.3× its length. Mid- and hindfemur with a few bristles spread over its distal dorsal area. Hindtibia with two bristles on only one side of insertion of shorter apical spur (as in Fig. 22).
Metasoma: Tergite I 1.6× [1.5–1.6×] as long as wide.
Color (as in Figs 48–49): Basically stramineous except the following: Antennae pale brown to orange. Vertex between upper parts of eyes, teeth of mandible, median area on pronotum, upper part of propleuron, anterior part of mesopleuron/sternite, marginal areas on mesoscutum, anterior third of scutellum and two longitudinal stripes on propodeum (not reaching its end) black. Posterior part of each metasomal segment brown. Wings stramineous, more intensively on its anterior part. Wing veins brown.
Pilosity: Body, including legs, largely covered with dense setae. Setae distinctly shorter on head, mesoscutum and scutellum, and lacking on following structures: occiput, ventrolateral side of pronotum, median area of mesepisternum, ventral part of metepimeron, anteroventral of metepisternum, median part of lateral side of propodeum and posteroventral half of hindfemur.
Life history. Almost nothing is known about the life history of Liosphex longicornis. The two females known have been collected at an altitude of 200m.
Etymological note. The name ‘ longicornis ’ refers to its long antennae, a character state which distinguishes it from all other species of Liosphex.
description: Published as part of Lohrmann, Volker & Ohl, Michael, 2010, World revision of the wasp genus Liosphex Townes, 1977 (Hymenoptera: Rhopalosomatidae), pp. 1-43 in Zootaxa 2384 on pages 24-25, DOI: 10.5281/zenodo.193731