Pseudophacopteron khayae, Malenovský & Burckhardt, 2009

Malenovský, Igor & Burckhardt, Daniel, 2009, A review of the Afrotropical jumping plant-lice of the Phacopteronidae (Hemiptera: Psylloidea), Zootaxa 2086 (1), pp. 1-74 : 20-21

publication ID	https://doi.org/ 10.11646/zootaxa.2086.1.1
persistent identifier	https://treatment.plazi.org/id/EC223817-FF9D-FFE6-FF22-F9CFFABBF975
treatment provided by	Felipe
scientific name	Pseudophacopteron khayae
status	sp. nov.

Treatment

Pseudophacopteron khayae View in CoL sp. nov.

( Figs. 32 View FIGURES 29–38 , 69 View FIGURES 67–76 , 92–94, 178–179, 232, 249)

Description. Adult. Colour. Vertex orange brown to dark brown laterally and anteriorly, median ridge and posterior margin lighter ochreous medially. Genae ochreous or orange brown, frons and clypeus darker brown. Pronotum uniformly light ochreous or with dark markings laterally. Mesopraescutum with two orange or dark brown triangular macules along midline anteriorly, light ochreous posteriorly. Mesoscutum ochreous with four orange brown bands. Mesoscutellum, metascutum, metascutellum and metapostnotum light ochreous. Lateral sclerites of thorax dark brown to black. Antenna ochreous, segments 1–2 basally and segments 4–8 narrowly dark brown apically, segments 9–10 entirely dark brown to black. Legs light ochreous; metacoxa with extensive dark brown markings; femora dark brown basally or almost entirely; tibiae light; tarsi infuscated to brown. Fore wing membrane clear, transparent, lacking dark patches ( Fig. 32 View FIGURES 29–38 ). Veins off-white, except for C+Sc, apical half of R+M+Cu 1, basal two thirds of R, a spot on M+Cu 1 fork, and two spots on anal vein, which are all dark brown. Hind wing clear, transparent, C+Sc light brown. Abdominal tergites uniformly dark brown or brown with tubercular processes on dorsum orange brown. Sternites brown to dark brown. Male terminalia light to dark brown, apical half of proctiger light ochreous. Female terminalia ochreous to brown basally and dark brown apically. Measurements and ratios in Tabs. 2–4.

Morphology. Head and legs similar to P. zimmermanni . Antenna relatively slender, segments cylindrical, weakly widening to apex; terminal setae subequal, short, the longer terminal seta less than half as long as segments 9 and 10 together ( Fig. 232 View FIGURES 230–246 ). Fore wing elongate, apex more or less rounded; fine surface spinulation present in cells cu 2 and apical portion of r 2 ( Fig. 69 View FIGURES 67–76 ). Male proctiger, in lateral view, relatively long and narrow (Fig. 92). Paramere relatively short, robust; in lateral view, nearly parallel-sided, apical part obliquely truncate, apex forming a tooth situated near posterior margin; paramere inner side densely covered with stout setae (Fig. 93). Apical dilation of distal segment of aedeagus very large, globose, with dorsal margin basally angular (Fig. 94). Female proctiger and subgenital plate with short apical extensions; circumanal pore ring with two rows of pores, pores of outer row contiguous; subgenital plate, in lateral view, with ventral margin regularly convex, broadly pointed apically (Fig. 178); in ventral view broad, rectangular, with two short lobes and shallow medial incision at apex (Fig. 179). Dorsal and ventral valvulae laterally with 5–7 distinct teeth (Fig. 178). Measurements and ratios in Tabs. 2–4.

Fifth instar larva ( Fig. 249 View FIGURES 247–250 ). Body elongate, parallel-sided. Whole dorsum of body covered with long simple setae. Antenna slender, with nine distinct segments; a single rhinarium apically on each of segments 7 and 8. Tarsal arolium smaller than claws. Abdomen dorsally on each side with five or six free sclerites and fused caudal plate; apex of caudal plate broadly rounded. Anus in ventral position. Outer circumanal ring wide, with anterior and posterior margin widely separated, composed mostly of two rows of pores, laterally sinuate. Measurements and ratios in Tab. 5.

Host plant. Khaya senegalensis (Meliaceae) .

Biology. According to the data on labels of specimens from the type series it is a gall-inducing species, but no further details are known on its biology.

Distribution. Nigeria.

Material examined. Holotype, ♂, NIGERIA: Mubi , 25 December 1967, on Khaya senegalensis , gall (H. Roberts). Dry-mounted [ BMNH] . Paratypes: NIGERIA: 4 ♂, 2 ♀, same data as holotype ; 3 ♀, Samaru , Rest House, 27 December 1967, on Khaya senegalensis , B-type gall-maker (H. Roberts) ; 4 ♂, 6 larvae, Zaria , Lebanon Club, 24 December 1967, on Khaya senegalensis , B-type gall (J. S. Ufaruna via D. L. Krieger). Dry- and slide-mounted [ BMNH, MMBC, NHMB] .

Etymology. Named after its host plant genus Khaya .

Comments. P. khayae appears close to P. zimmermanni , P. aulmanni , and P. fuscivenosum , with which it shares a basally angular dorsal margin of apical dilation of distal segment of aedeagus. It also shares the same host plant as P. zimmermanni and P. aulmanni . Adult P.khayae differs from all three other species in its larger size, shorter antennal terminal setae, and clear veins Cu 1a and Cu 1b of fore wing. The shape of paramere, distal segment of aedeagus and female subgenital plate, and the number of lateral teeth on dorsal and ventral valvulae also differ. The fifth instar larva of P. khayae is larger than the larvae of P. zimmermanni , P. aulmanni and P. fuscivenosum , and differs in chaetotaxy, and structure and shape of the circumanal pore ring.