Cacopsylla paraspiculata Lashkari & Burckhardt, 2020

Lashkari, Mohammadreza & Burckhardt, Daniel, 2020, Jumping plant-lice (Hemiptera: Psylloidea) of Kerman, Iran, with the description of one new Cacopsylla species, Zootaxa 4803 (3), pp. 576-590 : 586

Cacopsylla paraspiculata Lashkari & Burckhardt , sp. nov.

( Figs. 3−5 , 18–25 )

urn:lsid:zoobank.org:act:4C0C9967-D133-41C5-BAAC-C20323476636

Material examined. Holotype ♂, Iran: Kerman, Baft, Gogher , N 29°29.12’, E 56°35.46’, 2940 m, 19.ix.2017, Salix pycnostachya, M. Lashkari leg. ( NHMB).

Paratypes: Iran: 12 ♂, 12 ♀, same data as holotype ( KGUT, HMIM, NHMB) .

Description. Adult. Colour. Body yellow to orange. Antennae with segments 1–3 yellow, segments 4–8 yel- low basally and dark brown apically, segments 9 and 10 entirely dark brown. Genal processes yellow, apically light brown. Eyes grey and ocelli orange. Pronotum yellow, anterior margin streaked with white; mesopraescutum with white mid-line; mesoscutum yellow with six longitudinal white stripes. Legs yellow, apical tarsal segments light brown. Forewing transparent with light brown veins and light brown clouds present in the apical cells. Terminalia yellow; tip of paramere black; tip of female proctiger brown.

Structure. Head ( Fig. 4 ) approximately as wide as thorax; vertex 0.3–0.4 times as long as broad; genal processes as long as vertex along mid-line, axes subparallel, subacute apically, with long setae. Antenna 10-segmented, 1.3 times head width. Thorax moderately arched. Metatibia 0.4–0.5 times as long as head width, with small basal spine and five sclerotised apical spurs. Metabasitarsus with two lateral sclerotised spurs. Forewing membranous, oval, 2.6–2.9 times as long as broad, 2.9–3.8 times as long as head width; pterostigma long and narrow, about one quarter the width of cell r, ending above apical quarter of vein Rs; entire membrane of fore wing covered with dense, light coloured surface spinules except for narrow stripes along the veins; cell cu 1 longer than high. Hindwing membranous, shorter than forewing.

Terminalia as in Figs. 5 , 18–23 . Male proctiger simple, sparsely hairy basally, densely hairy in apical half, 0.8–1.0 times as long as head width. Male subgenital plate subglobular ( Fig. 5 ). Paramere ( Figs. 18–20 ) shorter than proctiger, about two-thirds of proctiger length and 0.7–0.8 times as long as head width; in lateral view, with a small posterior basal process which is densely covered with fine setae on inner surface, posterior margin convex basally with dense long fine setae and becoming concave in apical quarter; anterior margin concave in basal quarter, convex in the middle and concave in apical fourth with a subquadrangular lobe; apex forming each a small and asymmetrical anterior and posterior tooth; inner and outer surface covered with long fine setae, denser on the inner surface. Distal portion of aedeagus ( Figs. 5 , 21 ) long with sickle-shaped apical dilatation. Female proctiger, in lateral view, long with almost straight dorsal margin and narrowly rounded apex, comparatively longer than in most Salix feeding Cacopsylla species, 0.7–1.0 times as long as head width, 7.0–7.5 times as long as circumanal ring, 1.4 times as long as subgenital plate; basal half of proctiger covered sparsely with short setae, apical half densely covered with conical peg-like setae and several long setae forming an irregular longitudinal row on both sides and short intermediate setae; long setae gradually getting shorter towards apex. Circumanal ring small, composed of two rows of pores surrounded by short setae. Female subgenital plate, in lateral view, subacute apically, covered sparsely with long setae in apical two-thirds ventrally and sparsely shorter setae laterally and dense conical peg-like setae in apical half ( Fig. 22 ). Dorsal valvulae smooth and ventral valvulae with a small sclerotised tooth apically ( Fig. 23 ).

Measurements (in mm; 5 ♂, 5 ♀). Head width 0.54–0.66; antenna length 0.54–0.62; forewing length 1.58–2.07; male proctiger length 0.46–0.50; paramere length 0.31–0.36; length of distal segment of aedeagus 0.28–0.31; female proctiger length 0.92–0.96.

Fifth instar immature unknown.

Etymology. From Latin par = comparable and spiculare = to stab, referring to the similarity with the North American Cacopsylla spiculata (Jensen) .

Distribution. So far known only from Iran.

Host plant. Adults were collected on Salix pycnostachya Andersson (Salicaceae) which is a likely host.

Comments. Cacopsylla paraspiculata sp. nov. is a member of the Cacopsylla saliceti group as defined by Lauterer & Burckhardt (1997). In this group, the most reliable diagnostic character is the shape and chaetotaxy of the paramere, to a lesser extent also the distal portion of the aedeagus and details of the forewings. The paramere of the new species resembles closely that of C. spiculata (Jensen) , a species reported from the USA (California, Utah) collected on Salix sp., from which it differs in details of the paramere, such as the much larger antero-median lobe and the shorter antero-apical tooth. A good description is provided by Jensen (1951). In the broad apex of the paramere, C. paraspiculata resembles also the two palaearctic species C. dissimilis (Baeva) and C. nigrita (Zetterstedt) from which it differs in the broader apex, the stronger subapical constriction and the large anterior lobe of the paramere.

Figures

FIGURES 1‒5. 1. Colposcenia orientalis, Forewing. 2. Craspedolepta tadshikistanica, Forewing. 3. Cacopsylla paraspiculata sp. nov., Forewing. 4. Cacopsylla paraspiculata sp. n., Head. 5. Cacopsylla paraspiculata sp. nov., Male terminalia, in profile.

FIGURES 18‒25. Cacopsylla paraspiculata sp. nov.: 18-19. Inner and outer surface of paramere, in profile. 20. Parameres, in rear view. 21. Distal segment of aedeagus, in profile. 22. Female terminalia, in profile. 23. Valvulae, in profile. 24. Habitus of male. 25. Habitus of female.