Species Leptopsalis breyeri sp. nov.

Figs. 3–4

urn:lsid:zoobank.org:act: BE9130E7-26A1-470C-A505-C94D70DDDAD6

Holotype. MB.A.4457, ex coll. Jörg Wunderlich, F 2636.

Type locality. Myanmar, Hukawng Valley; Burmese amber. Upper Cretaceous (Lower Cenomanian).

Etymology. Named after Horst Breyer (the grandfather of Christian Bartel), who celebrated his 100 th birthday in January 2023. This is a masculine patronym in the genitive.

Diagnosis. Large and oval body, subtriangular in profile at the anterior end. Conical ozophores in type 2 position. Eyes possibly present. Chelicerae rather small and ornamented on median segment. Pedipalps thin and unmodified. Legs robust and granular. Tarsus IV with a long and fringed adenostyle near the middle. Opisthosomal sternal sulci mostly straight and parallel. Spiracles C-shaped.

Description. Body, total L 4.68, maximum prosomal W behind ozophores 1.64, maximum opisthosomal W 1.80. Conical ozophores in type 2 position (Fig. 3A, C). L of ozophores 0.28, W at base 0.24, distance between base of ozophores 1.16. Possible eye lens present anterior to ozophores. Chelicerae relatively small and ornamented on median segment (Fig. 3B, D); basal segment L 0.51, median segment L 1.16; cheliceral fingers equivocal. Pedipalps thin, its tarsus sparsely covered with sensory setae; tarsus with a small claw on its tip; pedipalp length: fe 0.68, pa 0.32*, ti 0.40, ta 0.48. Legs robust, granular and with numerous setae on tarsus; tarsus IV bearing a relatively long and fringed adenostyle near the middle (Fig. 4A); leg tarsi not subdivided, bearing a single smooth claw; leg lengths: I tr 0.40, fe 1.28*, pa 0.44, ti 0.70, mt 0.32, ta 0.88*, total 4.02; II tr 0.48, fe 1.28, pa 0.44, ti 0.80, mt 0.36, ta 1.02, total 4.38; III tr 0.32, fe 1.00, pa 0.48, ti 0.80, mt 0.38, ta 0.72, total 3.70; IV tr 0.48, fe 1.20, pa 0.58, ti 0.82, mt 0.36, ta 1.12, total 4.56. Opisthosomal sternites completely granular. Sternites 2–3 fused to a subtriangular plate; sternites 4–8 free, their widths: 4, 2.06; 5, 1.87; 6, 1.69; 7, 1.44; 8, 1.13; 9, 0.81. Opisthosomal sternal sulci mostly straight and parallel. Gonostome equivocal. Spiracles C-shaped, maximum W 0.16. Anal plate rounded and unmodified, W 0.53, L 0.38 (Fig. 4B). Cuticle without conspicuous pits or depressions.