Trispongiosus hui Zhang, Yao, & Liu, 2025

Trispongiosus hui Zhang, Yao, & Liu sp. nov.

Figs. 1–3 View Fig View Fig View Fig .

Zoobank LSID: urn:lsid:zoobank.org:act:6147E673-2167-4720-82EE-82FD9AD2B014 .

Etymology: Dedicated to Zhengkun Hu of the Fanjingshan National Nature Reserve (Tongren, China) for his donation of this amber specimen.

Holotype: CNU-HET-DM2024011, an adult female.

Type locality: The northern mountain range (Cordillera Septentrional) of the Dominican Republic between the cities of Puerto Plata and Santiago. Details unknown .

Type horizon: Burdigalian, Lower Miocene.

Diagnosis.—Body medium-sized; head oval, length of head slightly shorter than length of pronotum; posterior lobe of pronotum with parentheses-shaped indentations on both sides, humeral angles blunt; pronotum and each leg densely covered with short, decumbent to suberect, curly setae; membrane with external cell longer and narrower than internal cell; basal teeth of tarsi of foreleg and midleg rounded.

Description.—Macropterous female. Body medium-sized.

Vestiture: Head with dense, short, suberect to erect, curly setae on dorsal and lateral surfaces; antennae densely covered with very short, decumbent to suberect setae; labium with short, suberect to erect setae; pronotum and legs densely covered with short, decumbent to suberect, curly setae.

Structure: Body oval. Head elongate, with dorsum weakly inflated and venter flattened; postocular part 1.2 times as long as anteocular part; eyes slightly protruding anterolaterally; ocelli small, slightly elevated. Antennal scape longest, 2.0 times as long as length of head, base of scape notched, pedicel shortest, 0.7 times as long as length of

→ Fig. 4. Fossula spongiosa on the forelegs and midlegs of 11 yet undescribed species of fossil reduviids from Upper Cretaceous Burmese amber. A. CNU-HET-MA2025003,sp.1. B. CNU-HET-MA2025004, sp. 2. C. CNU-HET-MA2025005,sp.3. D. CNU-HET-MA2025006,sp.4. E. CNU-HET-MA2025007, sp. 5. F. CNU-HET-MA2025008, sp. 6. G. CNU-HET-MA2025009, sp. 7. H. CNU-HET-MA2025010, sp. 8. I. CNU-HET-MA2025011, sp. 9. J. CNU-HET-MA2025012, sp. 10. K. CNU-HET-MA2025013, sp. 11. H 1, J 1, K 1, forelegs; H 2, J 2, K 2, midlegs. Black arrows indicate the fossula spongiosa on the forelegs, while white arrows indicate those on the midlegs. Scale bars 250 µm.

head, basiflagellomere slightly shorter than scape, 1.9 times as long as length of head, distiflagellomere as long as length of head; labium curved, slightly surpassing anterior margin of prosternum, visible segment I subequal to length of visible segment II, visible segment III shortest, conical, 0.3 times as long as visible segment I.

Collar processes obtuse horn-shaped, produced laterally; length of pronotum along midline just as long as width across humeral angles, 1.5 times as long as length of head; anterior margin slightly concave, anterior lobe round and bulged, 0.5 times as long as posterior lobe, with deep median longitudinal sulcus; posterior lobe separated from anterior lobe by faint transverse sulcus; posterior lobe with parentheses-shaped indentations on both sides, anterior region of posterior lobe with shallow median longitudinal groove, humeral angles blunt, posterior margin nearly straight, lateral margin finely concave. Scutellum partially exposed, Y-shaped ridges narrow, scutellar process rounded.

Fore coxa spherical, fore femur thickened, somewhat flattened laterally, fore tibia slender, slightly curved, 1.2 times as long as fore femur, fore tarsus three-segmented, with a pair of tiny claws at apex; mid and hind coxae widely separated from each other; mid and hind femora moderately and strongly thickened, mid tibia 1.1 times as long as mid femur, hind tibia 1.2 times as long as hind femur, mid and hind tarsi three-segmented, with a pair of small claws at apices, base of claw with a relatively rounded and blunt tooth. Each tibia with fossula spongiosa approximately 0.1 times as long as of total length of each tibia.

Hemelytron slightly extending beyond abdominal tip, corium with quadrate cubitalcell, membrane with external cell longer and narrower than internal cell.

Abdomen broad oval, length 1.6 times as long as its maximum width, connexivum clearly extended outwards on both sides.

Dimensions.— Table 1.

Stratigraphic and geographic range.— In the northern mountain range (Cordillera Septentrional) of the Dominican Republic between the cities of Puerto Plata and Santiago. Burdigalian, Lower Miocene .