Loeia serrata, Dietrich, 2025

Dietrich, Christopher H., 2025, Review of the Southeast Asian leafhopper genus Loeia Duan (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 5666 (2), pp. 195-210 : 207

Loeia serrata sp. nov.

( Figures 1J , 5A–D , 7A–D, L )

Diagnosis. This species resembles L. tridentata in the structure of the genital capsule and in having the style apex enlarged and footlike but is easily distinguished by the aedeagus with a single dorsal spine near the base of the shaft and by the arcuate and dorsally serrate shaft apex.

Description. Body length of male 5.5–6.1 mm, female 7.1 mm. Head in dorsal view with crown slightly longer medially than next to eye, 1.6× wider at base than medial length. Male pygofer ~3.5× longer than maximum height, without ventral spine. Style moderately robuse, preapical lobe prominent, apex footlike with toothed mesal heel and broad, tapered lateral toe. Aedeagus with dorsal apodeme moderately long, slender, forming acute angle with dorsal margin of shaft; shaft compressed, tapered in lateral view, straight through most of length, with short, compressed, marginally serrate arcuate distal process; gonopore preapical on dorsal surface. Female sternite VII wider than long, lateral margins convexly tapered in posterior half, posterior margin convex with narrow median lobe marked with dark brown.

Etymology. The species name refers to the serrate distal process of the aedeagus.

Material examined. Holotype male, THAILAND Kanchanaburi, Khuean Srinagarindra NP, Tha Thung-na / Chong Kraborg , 14º29.972'N 98º53.035'E 210m, Malaise trap 11–18.xii.2008 Boonnam & Phumarin leg. T4441 [ QSBG] . Paratypes: 1 male and 2 females, same data as holotype [all INHS] .

Figures

FIGURE 1. Loeia new species, dorsal and lateral habitus, males. A, L. articulata; B, L. biclavata; C, L. brevis (left forewing missing); D, L. cetacea; E, L. chelata; F, L. compressa; G, L. decidua; H, L. elongata; I, L. robusta; J, L. serrata (right forewing missing); K, L. sinuata; L, L. tridentata. Scale bars = 1 mm.

FIGURE 5. Loeia male genital capsule and genitalia. A–D, L. serrata: A–B, genital capsule, lateral and ventral view; C–D, genitalia, lateral and ventral view. E–H, L. sinuata: E–F, genital capsule, lateral and ventral view; G–H, genitalia, lateral and ventral view.

FIGURE 7. A–D, Loeia serrata ovipositor: A–B, first valvula with enlargement of apex; C–D, second valvulae and gonoplac with enlargement of second valvulae apex. E–N, sternite VII: E, L. articulata; F, L. cetacea; G, L. chelata; H, L. compressa; I, L. decidua; J, L. elongata; K, L. robusta; L, L. serrata; M, L. tamtipi; N, L. tridentata. O, L. tamtipi, base of abdomen, ventral view, showing 1S and 2S apodemes; P, same showing apodemes only.