Liosphex guarani Lohrmann sp. nov.

(Figs 17, 23, 44–46)

Holotype. Female. BRAZIL: Santa Catarina, Nova Teutonia, 27°11’S 52°23’ W, 300–500m, I XI 1954, F. Plaumann (CNCI).

Paratypes. ARGENTINA: RA Misiones, Cataratas Iguazu, 6–12 November 1970, C. Porter & L. Stange (1 Ƥ, CCPC); BRAZIL: same locality as holotype, but II 10 1957, F. Plaumann (1 Ƥ, CUIC, paratype of L. varius); same locality as holotype, but 22 November 1938, F. Plaumann (B. M. 1939 – 181) (1 Ƥ, BMNH).

Diagnosis. The female of L. guarani is unique in Liosphex in the combination of the following characters: Distal margin of the mid- and hindtibia with a group of stout and thick bristles (Fig. 23); subantennal black marking not restricted to subantennal sclerite, reaching laterally down to cover the dorsal margin of clypeus (Fig. 17) and legs orange (Fig. 45).

Description of the female. Head (Fig. 17, 44): Maximum width in frontal view 1.8 mm [1.5–1.8 mm]. UID 1.35× [1.35–1.5×] LID. Flagellomeres short (flagellomere II 2.8× [2.8–3.0×], flagellomereVII 2.1× [2– 2.2×] as long as wide). With apical bristles on flagellomeres I–V, longer bristle on flagellomere I [1.2×] its length. OOD 2.3× [2.3–2.4×], IOD 1.0× [1.0×], MOD 1.0× [1.0×] LOD.

Mesosoma: Length of mesosoma: 3.3 mm [3.3 mm]. Anterior margin of pronotum with a median notch (as in Fig. 19).

Wings: Maximum length of forewing: 8.7 mm [6.2–8.7 mm], 2.6× [2.6×] as long as mesosoma. Forewing 1cu-a slightly curved, basal section inclivous, distad by M by at least 1.6–1.7× [1.6–2.2×] its length. M-cu slightly curved. 1Rs cell 2.6× [2.3–2.6×] as long as, its basal angle clearly smaller than 90° (Fig. 9). Rs of hindwing reclivous.

Legs: Forebasitarsomere short, length of antennal cleaner 0.35× [0.35–0.4×] its length. Mid- and hindfemur with a few bristles spread over its distal dorsal area. Mid- and hindtibia with a group of stout and thick bristles at the apical margin (Fig. 23).

Metasoma: Tergite I 1.9× [1.8–1.9×] as long as wide.

Color (as in Figs 45–46): Basically dark brown to black. Subantennal black marking not restricted to subantennal sclerite, reaching laterally down to cover the dorsal margin of clypeus (Fig. 17). Pale brown to orange on the following: Ventral side of antennae, area within the eye notch, clypeus, labrum, gena, pronotal margins, tegula, posterior section of metapleuron and propodeum, legs (except some brown/black markings on coxa, trochanter and femur), anterior and posterior section of metasomal segment I, basal one-third of segment II and the posterior margin of the following segments. Wings stramineous. Wing veins pale brown.

Pilosity: Body, including legs, largely covered with dense setae. Setae lacking on following structures: occiput, ventrolateral side of pronotum, ventrolateral side of scutellum, 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. Nothing is known.

Etymological note. The specific epithet refers to ‘ Guarani ’, the indigenous language in South America, still spoken by a large community of indigenous and nonindigenous people in northern Argentina, eastern Bolivia, southwestern Brazil and Paraguay. In the latter country, ‘ Guarani ’is still (along with Spanish) one the official languages; it is a noun in apposition.

Note. The type series of L. guarani includes one specimen, which was part of the original type series of L. varius Townes, 1977 .