Longioculus poinari sp. nov. Figs 3, 4 Etymology. — The species is named after George O. Poinar, who described the genus and first species of Longioculus and made many more contributions about prehistoric insects found in amber. Locality and horizon. — The specimen was included in amber found in Hkamti, Sagaing Division, Myanmar or Tanai, Kachin State Burma, Myanmar, two nearby amber mining locations. The amber from Hkamti is ca. 110 Ma, and the amber from Tanai is ca. 99 Ma old. Holotype. — Female. Specimen part of the LIB-Hamburg collection; collection number GPIH 07234 (ex. coll. Martin Husemann MH 0065) (Fig. 3). Syninclusions include several insect fragments and insects covered by other objects. Among these are two dipterans, one of which belongs to Nematocera Latreille, 1825, and a well-preserved mite. Some trichoms are also included. The amber piece appears rather dark due to many particles clouding the interior. Its measurements are 13.7 mm × 10 mm, and it weighs 1.15 g. The piece is in overall good condition but has some fragments broken off on the opposite margin of the specimen and should be handled with care. Diagnosis. — Forewing characters: 1 A, CuPb, and CuPaβ free. CuPaα fused with CuA + CuPaα. M with three branches. RP with nine branches. RA with 16 or more cross veins. Body characters: Proximal part of metatibia dorsally with denticles the same height as metatibia. Metatibial spurs leaf-like. Apically with four spine-like spurs, one small, two medium, one large. Metabasitarsus dorsally with smaller, ventrally with longer spines; dorsally less numerous than or equally as much as ventrally. Ovipositor sword shaped (Fig. 4). Description. — Completely preserved specimen with only parts of the antennae and ovipositor missing. Body length ca. 5.2–5.5 mm. Wings. Forewing 6.9 mm long. 1 A, CuPb, and CuPaβ free. CuPaα fused with CuA + CuPaα. MP with regularly spaced cross veins, one of them Y-shaped. M with three branches. RP with nine branches, no terminal bifurcation of any RP branch. Pterostigma present. Pterostigma area with cross veins (> 16). Subcostal venation not visible. Hindwing 6.64 mm long (Fig. 4 A). Head. Antennal scapes large, same width as antennal cavities. Antennomeres with small spines, irregularly placed. Eyes strongly protruding, oval shaped, and much higher than wide. Eyes 0.94 mm high (ca. half of head height) (Fig. 4 C). Thorax. Pronotum 1.4 mm long (dorsally), elevated from thorax (Fig. 4 C). Prothoracic leg: Femur 1.6 mm long. Dense short hairs dorsally, few fine denticles / short hairs ventrally. Tibia ca. 1.4 mm long. Ventral spination starting at ca. half the length and increasing in size toward apex. Two apical large spines at a V-angle. Tarsus three-segmented. First tarsus looking like continuation of tibia, but without spines, except one or two large apical spines (perhaps again at V-angle). Second tarsal segment much shorter than first, bearing a lobe. Third tarsal segment ca. 70 % of first tarsal segment in length, slender. Claws missing (Fig. 4 C). Mesothoracic leg: With some damage. Small spines present on femur and tibia. At least one large spine apically on tibia. Tarsus with hairs and two claws (Fig. 4 C). Metathoracic leg: Femur 3.56 mm long, 0.76 mm high. Tibia 3.51 mm long, much thinner than femur. Proximally with small denticles. Metatibial spurs leaf-like. Apical spurs spine-like, two small, two medium and one large one. Only basitarsus preserved (cut off at amber). Dorsally with smaller, ventrally with longer spines (Fig. 4 A – D). Abdomen. One cercus preserved, straight, 0.78 mm long. A single hair near the cercus tip might be a detached appendage of the tip; however, no appendage was present in the holotype. Ovipositor broken off shortly after base, but apparently sword-shaped (general direction does not indicate a scythe-like curve) (Fig. 4 C). Remarks. — The new species is placed in the subfamily Archelcaninae based on its free 1 A, CuPb, and CuPaβ. It is attributed to the genus Longioculus based on the large protruding eyes, which are much higher than wide, RA with visible cross veins, the absence of wing spots, postero – lateral margin of pronotum without concave curve, and metatarsus with denticles and cerci not setulose. A detailed comparison of the known species of Archelcaninae from Kachin amber is provided in Table 1. The state of 1 A, CuPb, and CuPaβ is unknown in L. burmensis, but the genus can be assigned to the Archelcaninae based on the free state of these veins in the new species. Poinar et al. (2007) described the forewing of L. burmensis with a stem of RP (orig. “ base of RS ”) between the third and fourth branch of RP (“ RA ”) (RP branches counted in the direction towards wing apex). In L. poinari, the position of the stem of RP is unsure; however, it is not further posterior than behind the ninth branch of RP as the area of the wing from there can be well seen. We estimate that the stem of RP in L. poinari is either be between MA 1 and RP 9 or RP 9 and RP 8. This position is much more in line with where the stem of RP can usually be found in the forewings of Elcanidae. It would be helpful if the type specimen of L. burmensis could be reviewed to confirm the position of the RP-stem in this species. Unfortunately, its whereabouts in the collection of R. Buckley are currently unknown. Longioculus poinari differs from L. burmensis by not having seven circular light blotches on the dorsal surface of the pronotum and by the denticles on the proximal half of the metatibia being broader and more prominent.

Published as part of Schall, Ole-Kristian Odin & Husemann, Martin, 2026, The first species of Parelcana and the second species of Longioculus (Orthoptera, Elcanidae) from mid-Cretaceous Burmese amber, pp. 77-82 in Journal of Orthoptera Research 35 (1) on pages 77-82, DOI: 10.3897/jor.35.154648