Ceropsylla Rileyı 1885

Oliveira, Denis Coelho De, Burckhardt, Daniel, Calácio, Tácito De Freitas, Kuster, Vinícius Coelho & Queiroz, Dalva Luiz de, 2019, Ceropsylla pouteriae Burckhardt sp. nov. (Hemiptera: Psylloidea: Triozidae) ı a new species of jumping plant-louse inducing galls on the leaves of Pouteria ramiflora (Mart.) Radlk. (Sapotaceae): taxonomyı gall structure and histochemistry, Journal of Natural History 53 (31), pp. 1923-1950 : 1926-1930

Ceropsylla Rileyı 1885

Ceropsylla ı 1885ı p. 76; Crawford 1914 ı p. 100; Tuthill 1943 ı p. 600; Hollis 1984 ı p. 2.

Type species: Ceropsylla sideroxyli Rileyı by monotypy.

Diagnosis

Adult. Head with genal processes strongly deflexed from plane of vertexı shorter than vertex along midline. Metatibia with 1 + 2 apical sclerotised spurs. Forewing with very long vein R + M+ Cuı which bifurcates into veins R + M and Cu; vein Rs shortı concavely curved towards fore marginı bifurcation of vein M distal to line connecting apices of vein Rs and Cu1a; vein Cu1b very longı distinctly longer that vein Cuı rendering cell cu1 very large. – Last instar immatures. Body almost completely flat dorsally. Antenna shortı conicalı slightly curvedı indistinctly 9-segmented. Humeral lobes developedı ending distal to eye which is enclosed between head sclerite and humeral lobe. Body margined by a singleı dense row of setae; dorsal surface covered by small setae. Inducing pit galls on Sapotaceae .

Redescription

Adult. Medium-sized triozidsı body length 3.4 – 4.4 mm ( Figure 2 (aıb)). Integument almost glabrous to imperceptibly granular. Headı in dorsal viewı about as wide as or slightly narrower than mesoscutum ( Figure 2 (cıd)); weakly to moderately deflexed from longitudinal body axis in an angle of 15 – 45°; vertex subtrapezoidalı coronal suture fully developed; occiputı in dorsal viewı weakly to moderately concaveı developed as broad transverse band caudad of eyes; lateral ocelli on weakly raised tubercles; frontal ocellus exposedı visible in dorsal view; compound eyes largeı hemispherical; genal processes conicalı subacute apicallyı strongly deflexed from plane of vertexı shorter than vertex along midline. Clypeus pear-shaped; labium moderately longı apex of segment 2 and entire segment 3 clearly visible in profile. Antenna 10-segmented with a single rhinarium on each of segments 4ı 6ı 8 and 9 ( Figure 2 (e)). Pronotumı in dorsal viewı forming a weakly curved transverse band; propleurites subrectangular with vertical sutureı proepisternum slightly larger than proepimeron. Metacoxae with moderately longı straightı apically blunt meracanthus; metatibia with a group of small or large genual spines ( Figure 2 (g)); with 1 + 2 apical sclerotised spurs. Forewing oblong ovalı with very long vein R + M+ Cuı which is bifurcating into veins R + M and Cu; vein Rs shortı concavely curved towards fore marginı bifurcation of vein M distal to line connecting apices of vein Rs and Cu1a; vein Cu1b very longı distinctly longer that vein Cuı rendering cell cu1 very large ( Figure 2 (f)); surface spinules absent apart from base of wing; radular spinules present in the middle of cells m1ı m2 and cu1 along wing margin. Hindwing about two-thirds forewing length; costal setae grouped; vein R + M+ Cu branching into short R + M vein and Cu. Male subgenital plate subglobular ( Figure 3 (aıb)). Paramere relatively long and slender ( Figure 4 (c ‒ e)). Distal segment of aedeagus shortı simpleı sclerotised end tube of ductus ejaculatorius relatively robustı weakly s-shaped ( Figure 4 (fıg)). Female terminalia ( Figure 3 (cıd)) shortı cuneateı subgenital plate shorter than proctiger; valvula dorsalis cuneate with a bump in the middle dorsally ( Figure 3 (gıh)); valvula ventralisı straightı lacking teeth; valvula lateralis membranousı rounded caudally.

Last instar immatures. Body 1.7 – 2.4 mm long; outlineı in dorsal viewı oval ( Figures 5 (aı b) and 6(aıb))ı 1.1 – 1.3 times as long as wide; almost completely flat dorsallyı flat to strongly bulbous ventrally. Antenna shortı conicalı slightly curvedı indistinctly 9-segmentedı with a single rhinarium on each of segments 3ı 5ı 7 and 8 ( Figures 5 (d) and 6(d)). Humeral lobes developedı ending beyond eye which is enclosed between head sclerite and humeral lobe ( Figures 5 (a) and 6(a)). Caudal plate semicircular ( Figures 5 (a) and 6 (a)). Outer circumanal ring smallı 0.2 times as wide as caudal plateı transverseı narrowly rounded or slightly angular laterally; consisting of a single row of poresı sometimes with additional pores laterally ( Figures 5 (f) and 6(f)). Body surrounded by a singleı dense row of sectasetae or scale-like setae ( Figures 5 (c) and 6(c)); dorsal surface covered by small sectasetae or peg setae ( Figures 5 (e) and 6(e)). Body covered with marginal and dorsal waxy secretions ( Figure 1 (c)).

Key to species of Ceropsylla Rileyı 1885

1 Adult: Body conspicuously bicolouredı almost black dorsallyı straw-coloured ventrally ( Figure 2 (a)). Head and thorax with longı fineı sparse setae dorsally ( Figure 2 (c)). Genal processes separate in the middleı axes strongly converging towards apex dorsally ( Figure 2 (c)). Flagellar segments of antenna thickened ( Figure 2 (e)). Metatibia with a group of smallı inconspicuous genual spines dorsally ( Figure 2 (g)). Forewing narrowly rounded apically ( Figure 2 (f)). Male proctiger longı slender ( Figures 3 (a)ı 4(a)); paramere digitiform ( Figure 4 (c)); apex of distal portion of aedeagus hook-shaped ( Figure 4 (f)). Female proctiger strongly curved in apical thirdı apex down-curvedı blunt; bearing long setae in apical third dorsally ( Figure 3 (c)); circumanal ring oval dorsallyı consisting of several rows of pores basally and two rows of unequal pores laterally and caudally ( Figure 3 (e)ı arrow); subgenital plate pointed apically; ventral margin concave ( Figure 3 (c)); valvula lateralis broadly rounded caudally. – Fifth instar immature: Body shorter than 2.0 mm; with longı denseı subacute marginal sectasetae dorsally ( Figure 5 (c)) and smallı dorsal sectasetae dorsally ( Figure 5 (e)); strongly bulbous ventrally. Tarsal arolium ovalı bearing short pedicel and unguitractor; slightly longer than well-developed claws dorsally ( Figure 5 (g)). Very long membranous process present at dividing line of thorax and abdomen medially ( Figure 5 (b): vp). Outer circumanal ring with some additional pores mostly laterally dorsally ( Figure 5 (f)). South America. On Pouteria ramiflora ............ .............................................................................................................. C. pouteriae Burckhardt sp. nov.

– Adult: Body mostly straw-coloured dorsally ( Figure 2 (b))ı except for black patch on head covering fronsı apex of vertex and base of genal processes dorsally ( Figure 2 (d)). Head and thorax with microscopic setae dorsallyı not visible macroscopically ( Figure 2 (d)). Genal processes contiguous in the middleı axes weakly converging towards apex dorsally ( Figure 2 (d)). Flagellar segments of antenna slender ( Figure 2 (b)). Metatibia with a group of large genual spines on a raised tubercle. Forewing subacute apically ( Figure 2 (b)). Male proctiger shortı broadly rounded posteriorly ( Figure 4 (b)); paramere bifid ( Figure 4 (dıe)); apex of distal portion of aedeagus straight ( Figure 4 (g)). Female proctiger weakly curved in apical thirdı apex upcurvedı subacute; bearing short setae in apical third dorsally ( Figure 3 (h)); circumanal ring cruciformı consisting of a single row of oblong-oval pores; subgenital plate truncate apically ( Figure 3 (f)ı arrow); ventral margin weakly convex dorsally ( Figure 2 (d)); valvula lateralis narrowly rounded caudally. – Fifth instar immature: Body longer than 2.0 mm; with scale-like marginal setae and small dorsally ( Figure 6 (c))ı peg-like dorsal setae dorsally ( Figure 6 (e)); flattened ventrally. Tarsal arolium circular; claws absent dorsally ( Figure 6 (g)). Lacking long membranous process at edge of thorax and abdomen medially dorsally ( Figure 6 (b)). Outer circumanal consisting of a single row of pores only dorsally ( Figure 6 (f)). North and Central America. On sideroxylon foetidissima .......................... .......................... C. sideroxyli Rileyı 1885

Figures

Figure 1. Galls of Ceropsylla pouteriae Burckhardt, sp. nov. on leaves of Pouteria ramiflora. (a) branches with galled leaves; (b) adaxial surface of gall; (c) abaxial surface of gall (= pit).

Figure 2. Ceropsylla spp., adult characters. (a, b) habitus,in profile; (c, d) head, dorsal view;(e) antenna; (f) forewing; (g) base of metatibia. ‒ (a, c, e‒g) C. pouteriae Burckhardt, sp. nov.; (b, d) C. sideroxyli Riley.

Figure 3. Ceropsylla spp., terminalia.(a, b) male terminalia, in profile; (c, d) female terminalia,in profile; (e, f) circumanal ring; (g, h) valvula dorsalis (vd) und valvula ventralis (vv). ‒ (a, c, e, g) C. pouteriae Burckhardt, sp. nov.; (b, d, f, h) C. sideroxyli Riley.

Figure 4. Ceropsylla spp., male terminalia. (a, b) male proctiger, in profile; (c, d) inner face of paramere, in profile; (e) paramere,rear view; (f, g) distal portion of aedeagus.‒ (a, c, f) C. pouteriae Burckhardt, sp. nov.; (b, d, e, g) C. sideroxyli Riley.

Figure 5. Ceropsylla pouteriae Burckhardt, sp. nov., immature. (a) habitus, left side, dorsal view; (b) habitus, right side, ventral view (vp = ventral process); (c) marginal sectasetae; (d) antenna; (e) dorsal sectasetae; (f) circumanal ring; (g) tip of tarsus with tarsal arolium.

Figure 6. Ceropsylla sideroxyli Riley, immature. (a) habitus, left side, dorsal view; (b) habitus, right side, ventral view; (c) marginal sectasetae; (d) antenna; (e) dorsal sectasetae; (f) circumanal ring; (g) tip of tarsus with tarsal arolium.