Pseudophacopteron benguelense, 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 : 25-26

Pseudophacopteron benguelense sp. nov.

( Figs. 38 , 151–153, 195, 236, 250)

Description. Adult. Colour. Vertex, genae, frons and clypeus almost uniformly red brown to dark brown. Pronotum red brown, dark brown or black laterally. Mesopraescutum red brown, dark brown anteriorly. Mesoscutum red brown, lateral tips dark brown. Mesoscutellum and metapseudonotum red brown. Lateral sclerites of thorax black. Antenna off-white to ochreous, segments 1–2 red brown to dark brown anteriorly, segments 3–8 dark brown to black apically, segments 9 and 10 black entirely. Legs ochreous to brown; metacoxa with extensive dark brown markings or entirely dark brown; femora nearly entirely dark brown, narrowly lighter basally and apically; metatibia infuscated dark brown basally. Fore wing membrane transparent, clear, with dark brown infuscations along apical portions of veins M 1+2, M 3+4, Cu 1a, full length of Cu 1b and the touching point of veins Rs and M 1+2 ( Fig. 38 ). Veins ochreous except for dark brown C+Sc, a portion in the middle of R+M+Cu 1, basal two thirds of R, basal half of M, two spots on anal vein and the portions covered by infuscation of membrane. Hind wing clear, transparent; C+Sc brown. Abdominal tergites dark brown to black, red brown on dorsum. Sternites uniformly dark brown to black. Male terminalia with proctiger ochreous and parameres brown. Female terminalia dark brown to black, proctiger red brown basally.

Morphology. Head similar to P. zimmermanni . Antenna relatively slender, segments cylindrical, weakly widening to apex; terminal setae subequal, the longer terminal seta approximately 1.5 times or twice longer than segments 9 and 10 together ( Fig. 236 ). Fore wing pyriform, apex truncate; surface spinulation present in cells cu 1, cu 2, m 1, m 2, r 1, and apical portion of r 2. Metatibia with 11–13 apical spurs and 15–20 similar spurs laterally; metabasitarsus distinctly longer than broad, cylindrical. Male proctiger, in lateral view, relatively long and narrow (Fig. 151). Paramere, in lateral view, straight, anterior margin slightly convex and narrowing to a narrowly rounded apex (Fig. 152). Apical dilation of distal segment of aedeagus regularly widening to a broadly rounded apex (Fig. 153). 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, pointed apically ( Fig. 195 ). Measurements and ratios in Tabs. 2–4.

Fifth instar larva ( Fig. 250 ). Body robust, slightly ovoid; margins of wing pads not confluent with body margin. Body margin with short pointed lanceolate setae distributed in following numbers (one side only): head in front of insertion of antenna: 1–4, cephalothorax behind eyes: 5–9, fore wing pad: 15–17 (concentrated especially in humeral region), hind wing pad: 3–7, abdomen: (2–3) + (1–4) + (1–4) + (11–17). Dorsum of body with short simple setae. Long simple setae arranged in several groups of two to four on ventral side of abdomen near caudal plate margin and on each side of circumanal ring. Antenna slender, gradually narrowing to apex, directed obliquely backwards and bent over the upper body surface, undivided or at most with one or two basal divisions; two rhinaria in apical third. 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, composed of one row of pores, widely sinuate. Measurements and ratios in Tab. 5.

Host plant. Ekebergia benguelensis (Meliaceae) .

Biology. Unknown.

Distribution. Angola.

Material examined. Holotype, ♂, ANGOLA: Chianga , 22 August 1970, Ekebergia benguelensis (A. van Harten) . Dry-mounted [ BMNH] . Paratypes: ANGOLA: 1 ♀, same data as holotype ; 1 ♂, 1 ♀, 1 larva, same data as holotype but 31 August 1970 ; 9 larvae, same data as holotype but 4 July 1970. Dry- and slide-mounted [ BMNH] .

Etymology. Named after its host species Ekebergia benguelensis and the Benguela province in Angola.

Comments. P. benguelense shares a similar form of the distal segment of the aedeagus with P. electum , P. pretoriense , P. carapae and P. morion , and a similar form of female subgenital plate with P. sodalis and P. carapae . It differs from all these species in its larger size, fore wing pattern and the shape of the male paramere. Larvae differ in the presence of long simple setae and the widely sinuate form of the circumanal ring in P. benguelense .

Figures

FIGURES 29–38. Pseudophacopteron spp., fore wings. 29, P. zimmermanni; 30, P. aulmanni; 31, P. fuscivenosum; 32, P.khayae; 33, P. electum; 34, P. pretoriense; 35, P. carapae; 36, P.morion; 37, P. sodalis; 38, P. benguelense.

FIGURES 230–246. Pseudophacopteron spp., antennal segments 9 and 10. 230, P. zimmermanni; 231, P. aulmanni; 232, P. khayae; 233, P. pretoriense; 234, P. carapae; 235, P. stigmatum; 236, P. benguelense; 237, P. sodalis; 238, P. lautereri; 239, P. marmoratum; 240, P. arcuatum; 241, P. verrucifrons; 242, P. nigritulum; 243, P. wagneri; 244, P. bicolor; 245, P. geminum; 246, P. hankae.

FIGURES 188–200. Pseudophacopteron spp., females. 188, 190, 192–193, 195–197, 199, female terminalia, lateral view, with details of circumanal pore ring structure and dorsal and ventral valvulae; 189, 191, 194, 198, 200, female subgenital plate, ventral view. 188–189, P. lecaniodisci; 190–191, P. lautereri; 192, P. marmoratum; 193–194, P. verrucifrons; 195, P. benguelense; 196, P. arcuatum; 197–198, P. eastopi; 199–200, P. pusillum (188–189 and 197–200 reproduced from Malenovský et al. 2007 with permission of Taylor and Francis, London).

FIGURES 247–250. Pseudophacopteron spp., fifth instar larvae: left dorsal and right ventral surfaces, with details of antenna, tarsus, chaetotaxy, and circumanal pore ring. 247, P. zimmermanni; 248, P. aulmanni; 249, P. khayae; 250, P. benguelense.