Loeia compressa, Dietrich, 2025

Dietrich, Christopher H., 2025, Review of the Southeast Asian leafhopper genus Loeia Duan (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 5666 (2), pp. 195-210 : 204-205

Loeia compressa sp. nov.

( Figure 1F , 3I–L , 7H )

Diagnosis. This species resembles L. decidua in having a pair of ventromedially directed ventral pygofer processes and the aedeagal shaft relatively slender and compressed, but is readily distinguishable by its sinuate shape and the absence of paired processes.

Description. Body length of male 5.7–6.1 mm, female 6.5–6.6 mm. Head in dorsal view with crown no longer medially than next to eye, 2.2× wider at base than medial length. Male pygofer ~3× longer than maximum height, with short, acute, heavily sclerotized ventral process near midlength extended slightly basomesad. Subgenital plate extended slightly beyond midlength of pygofer. Style relatively short, preapical lobe broadly rounded, apex tapered evenly curved laterad. Aedeagus with dorsal apodeme relatively short and broad in lateral view with quadrate anterior keel, shaft slender, strongly compresed, curved dorsad from base then slightly sinuate in lateral view, apex evenly tapered, gonopore on posterior surface near midlength. Female sternite VII approximately as long as wide, lateral margins convexly tapered, posterior margin with broad median lobe slightly indented in middle and with submarginal arcuate brown macula

Etymology. The species name refers to the strongly compressed aedeagal shaft.

Material examined. Holotype male: THAILAND Loei, Phu Kradueng NP, Mixed deciduous/ Elerd , 16º56.57'N 101º49.04'E 273m, Malaise trap 12–19.iii.2008, Thonghuay Phatai leg. T5108 [ QSBG] . Paratypes: 1 male, same data as holotype ; 1 male, THAILAND Loei, Phu Kradueng NP Huay Lao Kao , 16º52.442'N 101º50.706'E 280m, Malaise trap 9–16.viii.2006, Sutin Khonglasae leg. T484 ; 1 female, THAILAND Loei, Phu Kradueng NP, Bamboo forest / Huay Taad / Elerd , 16º56.57'N 101º48.9'E 273m, Malaise trap 12–19.iii.2008, Thonghuay Phatai leg. T5096 ; 1 female, THAILAND Loei, Phu Kradueng NP, Forest protection unit Loei.5 ( Phakbung ), 16º50.493'N 101º41.726'E 412m, Malaise trap 13–19.ii.2007, Wuthicahi kwanjam leg. T1500 [all paratypes 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 3. Loeia male genital capsule and genitalia. A–D, L. cetacea: A–B, genital capsule, lateral and ventral view; C–D, genitalia, lateral and ventral view. E–H, L. chelata: E–F, genital capsule, lateral and ventral view (apices of pygofer lobes broken); G–H, genitalia, lateral and ventral views. I–L, L. compressa: I–J, genital capsule, lateral and ventral view; K–L, genitalia, lateral and ventral views.

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.