Acizzia convector Burckhardt & Taylor, 2023

Taylor, Gary S., Halbert, Susan E., Tripathy, Ashirwad & Burckhardt, Daniel, 2023, A new Australian species of invasive psyllid, Acizzia convector Burckhardt & Taylor, sp. nov. (Psylloidea: Psyllidae) associated with Acacia auriculiformis and A. mangium (Fabaceae), Zootaxa 5228 (1), pp. 61-72 : 63-69

Acizzia convector Burckhardt & Taylor , sp. nov.

( Figs 1–3 , 5–29 )

LSID: urn:lsid:zoobank.org:act:B2193322-533E-4A4A-B046-A4D3EEC7E924

Material examined. Holotype ♂, Australia: Northern Territory, Darwin, Nakara, Charles Darwin University , 13.iii.2012, Acacia auriculiformis (H. Brown & M. Neal) (MAGNT, dry mounted).

Paratypes. Brunei: 1 ♀, 4 immatures, coast near Muara, 27.xi.1988 (C. Lienhard) #Bru-88/49 ( MHNG, dry mounted) .— Cambodia: 1 ♂, 1♀, Highway6,South of Skuon, 11.x.2011, Acacia auriculiformis (A.L.Yen) ( MAGNT, dry mounted); 3 ♂, 2 ♀, same but ( NHMB, in 70% ethanol) .— India: 2 ♂, 2 ♀, 11 immatures, Odisha, Bhubaneswar, College of Forestry , OUAT, N20.263557° E85.811841°, 30 m, 30.i.2019, Acacia mangium (A. Tripathy) ( NHMB, in 70% ethanol) .— Laos: 2 ♂, 4 ♀, Luang Prabang, The Grand Luang Prabang Hotel , 6.x.2011, Acacia auriculiformis (A.L. Yen) ( MAGNT, dried, point); 2 ♂, 2 ♀, same but ( NHMB, in 70% ethanol) .— Malaysia: 1 ♀, Sabah, Sandakan , 3.v.1982, at light (D. Burckhardt) #82105 ( MHNG, dry mounted); 2 ♂, 4 ♀, same but Sepilok, east of Sandakan, Forest Research Centre , 24.iv.1982, at light (D. Burckhardt) #8228–8230 ( MHNG, dry mounted); 1 ♂, same but Keningau, 930 m, 14.iii.1983 (C. Lienhard) ( MHNG, dry mounted) .— Singapore: 1 ♂, 1 ♀, 1 immature, Woodland, North side, 5.x.1985, mangrove (C. Lienhard) #Sum-85/3 ( MHNG, dry mounted) .— Thailand: 1 ♀, Chiang Mai, 7.viii.1980, at light (D. Burckhardt) #80166 ( MHNG, dry mounted); 2 ♂, 2 ♀, Khon Kaen University, 31.ix.2011, Acacia auriculiformis (A.L. Yen) ( MAGNT, dried, point); 1 ♂, 2 ♀, same but ( NHMB, in 70% ethanol) .— United States of America: Florida: COLLIER COUNTY : 2 ♂, 4 ♀, Bonita Springs, 9751 Bonita Beach Rd, 6.iv.2016, Acacia aurilculiformis (S.D. Krueger) FSCA # E2016-1457 (FSCA dry mounted); 1 ♂, Immokalee, SW Florida Research and Education Center, 16.x.2014, short suction trap ‘open field’ location (S. Croxton) FSCA# E2014-7419 ( FSCA, dry mounted); 1 ♂, same but 12.iii.2015, FSCA# E2015-1210 ( FSCA, dry mounted) ; 1 ♀, same but 19.iii.2015, FSCA# E2015-1390 ( FSCA, dry mounted); 1 ♂, same but 26.iii.2015, FSCA# E2015-1538 ( FSCA, slide mounted); 1 ♂, same but 2.iv.2015, FSCA# E2015-1623 ( FSCA, slide mounted) ; 1 ♀, same but 4.xi.2015 (J.A. Tansey & Xulin Chen) FSCA# E2015-6306 ( FSCA, slide mounted); 1 ♂, same but 11.x.2016 (M. Triana) FSCA# E2016-4933 ( FSCA, slide mounted) ; 1 ♀, same but short suction trap ‘south’ location, 19.iii.2015 (S. Croxton) FSCA# E2015- 1387 ( FSCA, slide mounted) ; 1 ♀, same but 15.x.2015 (J.A. Tansey) FSCA# E2015-5940 ( FSCA, dry mounted) ; 1 ♀, same but tall suction trap near screenhouse, 9.iv.2015, (S. Croxton) FSCA# E2015-2162 ( FSAC, dry mounted) ; 2 ♀, Immokalee , N26.44395° W81.458083°, 10 m, 20.iv.2017, Acacia auriculiformis (D. Burckhardt & D.L. Queiroz) #17-14(5) ( NHMB, in 70% ethanol); 1 ♂, 1 ♀, Naples, 3578 Plover Ave , 5.ii.2016, Acacia auriculiformis (S.D. Krueger) FSCA # E2016-384 ( FSCA, dry mounted) ; 1 ♀, 18 immatures, Naples , N26.05806° W81.69944°, 29.iii.2016, Acacia auriculiformis (Scott D. Krueger) FSCA # E2016-1247 ( FSCA, dry (adult) and slide (immatures) mounted) ; 9 immatures, Naples, 3835 White Lake Blvd (across from road), 29.iii.2016, Acacia auriculiformis (S.D. Krueger) FSCA # E2016-1248 ( FSCA, slide mounted); 7 ♂, 3 immatures, Naples, City Gate Drive , N26.16904° W81.68308°, 19.iv.2017, Acacia auriculiformis (D. Burckhardt, R. Delcid, S.E. Halbert, S.D. Krueger, D.L. Queiroz) FSCA # E2017-1592 ( FSCA, dry and slide mounted); 38 ♂, 39 ♀, 9 immatures, same but N26.169117° W81.683433°, 5 m, 19.iv.2017, Acacia auriculiformis (D. Burckhardt & D.L. Queiroz) #17-13(1) ( NHMB, dry and slide mounted, in 70% ethanol); — INDIAN RIVER COUNTY: 1 ♀, Vero Beach , 94 th Dr, N27.63902° W80.51907°, 1.vii.2020 (A.D. Tasi) FSCA# E2020-2564 ( FSCA, dry mounted); — LEE COUNTY: 2 ♂, 1 ♀, 4 immatures, Bonita Springs, 28270 S Tamiami Trail , 6.iv.2016, Acacia auriculiformis (S.D. Krueger) FSCA # E2016-1458 ( FSCA, dry and slide mounted); 2 ♂, 1 ♀, Lehigh Acres, 24 th St W & Ruth Ave (NW corner), 29.xi.2017 (R. Delcid) FSCA# E2018-302 ( FSCA, dry mounted); —MIAMI-DADE COUNTY: 1 ♂, Miami, NW 7 th Ave & NW 202 nd St (SW corner), 26.i.2015, stray on Eucalyptus torelliana (O. Garcia) FSCA # E2015-394 ( FSCA, dry mounted); 1 ♂, same but 30.i.2015, FSCA# E2015-490 ) ( FSCA, slide mounted); 1 ♂, same but 16.ii.2015, FSCA# E2015-722 ( FSCA, slide mounted); 1 ♂, 1 ♀, North Miami, NE 190 th St & NE 6 th Ave, N25.95136° W80.20135°, 18.vi.2019 (O. Garcia) FSCA# E2019-3415 ( FSCA, dry mounted); 1 ♂, Miami , Chapman Field , 13603 Old Cutler Rd, 9.ii.2015, suction trap (H.I. Escobar) FSCA# E2015-752 ( FSCA, dry mounted); — PALM BEACH COUNTY: 1 ♀, Belle Glade , Everglades Research and Education Center , 3200 E Palm Beach Rd, 13.ix.2019, suction trap (J.M. Beuzelin) FSCA# E2019- 5338 ( FSCA, dry mounted); — POLK COUNTY: 1 ♂, Winter Haven , DPI Citrus Arboretum , 3027 Lake Alfred Rd, short suction trap, 7.xi.2019 (R.L. Lawrence & K.D. Branch) FSCA# E2019-6254 ( FSCA, dry mounted) .

Diagnosis. Adult. Pale yellow-brown with brown markings on head and thorax ( Figs 1, 2 , 5–8 ); fore wing with brown markings, progressively more abundant and forming 3 indistinct bands towards distal portion of wing ( Figs 12, 13 ). Genal processes 0.3–0.4 times as long as vertex along midline, broadly conical with subacute apices ( Fig. 9 ). Antenna 1.6–1.8 times width of head. Metatibia with a small but distinct genual spine ( Fig. 11 ) and 1+4 apical spurs; metabasitarsus with a pair of spurs. Fore wing ( Figs 12, 13 ) oval, widest in apical quarter, apex broadly rounded; vein C+Sc slender, pterostigma petiolate, long and slender; surface spinules covering all cells, leaving spinules-free stripes along veins ( Fig. 14 ), densely irregularly spaced slightly thicker on maculations ( Fig. 15 ). Male proctiger ( Fig. 16 ) with long thin tubular apical projection and elongate rounded posterior lobes bearing an elongate pointed appendage ( Fig. 17 ). Paramere ( Fig. 18 ) narrow and bent posteriorly at mid-length at about 130°, with an antero-medial process at mid-height. Distal segment of aedeagus ( Fig. 19 ) thin with a bulbous apex. Female proctiger ( Fig. 20 ) in longitudinal body axis short, vertically tall with strongly inclined dorsal surface with apex bearing a rounded lobe with curved to hooked setae ( Fig. 22 ).

Fifth instar immature. Antenna with segments 3 and 5 each with one subapical capitate seta about as long as diameter of corresponding segment or slightly longer ( Fig. 25 ). Fore wing pad with 7–9 moderately long marginal capitate setae and 10–19 short dorsal rod setae; hindwing pad with 5 marginal capitate setae and 0–3 short dorsal rod setae. Caudal plate ( Figs 27, 28 ) 1.4–2.0 times wider than long, truncate posteriorly; with (0–2)+(0–2) submedian dorsal and (6–7)+(6–7) lateral long capitate setae and (7–9)+(7–9) short sublateral dorsal rod setae. Outer circumanal ring ( Fig. 29 ) 0.2–0.3 times as wide as caudal plate.

Description. Adult. Colour. Pale yellow-brown with brown markings on head and thorax ( Figs 1, 2 , 5–8 ). Genal processes pale; vertex pale yellow-brown with pattern of submedial and sublateral brown markings. Antennal segments 1–2 yellow-brown, segments 3–8 progressively darker apically, segments 9–10 dark brown. Pronotum yellow-brown with a thin medial and 3 pairs submedial and sublateral brown markings; mesopraescutum yellowbrown with a pair of submedial brown markings; mesoscutum yellow-brown with a thin medial longitudinal brown marking, a pair of broad submedial brown markings and a pair of broader orange-brown sublateral markings; mesoscutellum pale with a submedial brown marking. Legs pale yellow-brown, femora with a dorsal brown infuscation. Fore wing with brown markings, progressively more abundant and forming 3 indistinct bands towards distal portion of wing, and two distinctive darker brown markings in cell cu 1 confluent with hind margin of wing; veins light-brown ( Figs 12, 13 ). Abdominal membrane pale green or yellow. Male proctiger and subgenital plate pale yellow-brown, parameres pale yellow-brown with dark sclerotised apices; female proctiger and subgenital plate pale yellow-brown. Females are generally slightly darker than males with a more expanded and distinct brown fore wing pattern.

Structure. Head wider than mesoscutum ( Figs 7, 8 ). Vertex rhomboidal ( Fig. 9 ) covered with moderately long setae and irregularly imbricate microsculpture ( Fig. 10 ); genal processes 0.3–0.4 times as long as vertex along midline, broadly conical with subacute apices. Rostrum 0.3–0.4 times as long as head width. Antenna 1.6–1.8 times width of head, rhinaria present on antennal segments 4, 6, 8 and 9; segment 10 with a thin subacute and a slightly shorter thin truncate terminal seta, 0.9 times and 0.6 times as long as segment 10, respectively. Thorax weakly arched ( Figs 5, 6 ); propleurites irregularly rectangular, higher than wide, both dorsal branches of suture developed, episternum slightly larger than epimeron; mesopraescutum and mesoscutum wider than long ( Figs 7, 8 ). Metacoxa with distinct conical meracanthus; metatibia 0.7–0.8 times as long as head width, with a small but distinct genual spine ( Fig. 11 ) and one outer and four inner apical spurs, two of which are contiguous; metabasitarsus with a pair of spurs of similar size. Fore wing ( Figs 12, 13 ) oval, 2.6–2.9 times as long as head width, 2.2–2.3 times as long as wide, widest in apical quarter, apex broadly rounded; vein C+Sc slender, pterostigma petiolate, long and slender; cell m 1 very elongate, cell value 2.5–2.9; cell cu 1 arched towards wing base, cell value 1.1–1.3; radular areas short, broadly triangular, in cells r 2, m 1, m 2 and cu 1; surface spinules covering all cells, leaving spinule-free stripes along veins ( Fig. 14 ), densely irregularly spaced slightly thicker on maculations ( Fig. 15 ). Male terminalia as in Fig. 16 ; proctiger with long thin tubular apical projection and elongate rounded posterior lobes bearing an elongate pointed appendage ( Fig. 17 ). Paramere ( Fig. 18 ) narrow and bent posteriorly at mid-length at about 130°, with an anteromedial process at mid-height; outer face with spine-like microsculpture in the middle, sparsely beset with setae; inner face densely beset with long setae, with long thick bristle apically. Distal segment of aedeagus ( Fig. 19 ) thin with a bulbous apex; sclerotised end tube of ductus ejaculatorius short, slightly curved. Female terminalia as in Fig. 20 ; proctiger 0.6–0.7 times as long as head width, short longitudinally, tall vertically with strongly inclined dorsal surface from lateral aspect bearing moderately long setae laterally, long setae posteriorly and a row of four very long bristles postero-laterally on either side; apex bearing a rounded lobe with curved or hooked setae ( Fig. 22 ); circumanal ring 0.3–0.4 times as long as proctiger, with a double row of pores ( Fig. 21 ). Subgenital plate 0.6–0.7 times as long as proctiger, elongate triangular from lateral aspect with moderately long sparse setae. Valvula dorsalis triangular, valvula ventralis pointed apically with a subapical ventral tooth ( Fig. 23 ).

Measurements (in mm). Body length (27 ♂, 26 ♀): ♂ 1.9–2.2, ♀ 2.1–2.5. Morphological structures (2 ♂, 2 ♀): head width ♂ 0.56–0.58, ♀ 0.58–0.62; antenna length ♂ 0.96–0.98, ♀ 0.90–1.00; fore wing length ♂ 1.48–1.54, ♀ 1.70–1.78; male proctiger length 0.22–0.24; paramere length 0.20; length of distal segment of aedeagus 0.16–0.18; female proctiger length 0.36–0.42.

Fifth instar immature. Colour. Sclerites greyish-brown, membrane dirty whitish. Antennal segments 1 and 2, light brown, segments 3–7 and base of segment 8 light yellowish, tip of segment 8 and segment 9 dark brown or black. Rostrum brown, tip almost black. Legs brown, tarsi ochreous.

Structure. Body ( Fig. 24 ) flattened, elongate, 1.4–1.5 times as long as wide. Surface smooth. Antenna 9- segmented, 1.0–1.2 times as long as fore wing pad; with each an apical rhinarium on segments 3, 5, 7 and 8; segments 3 and 5 each with one subapical capitate seta about as long as diameter of corresponding segment or slightly longer ( Fig. 25 ). Cephalothorax with moderately long, partly capitate, partly normal setae. Thoracic tergites small. Legs with long normal setae, tibiae also with capitate setae; metatibiotarsus 0.5–0.6 times as long as fore wing pad; tarsal arolium ( Fig. 26 ) triangular, with unguitractor and long pedicel. Fore wing pad oval, with 7–9 moderately long marginal capitate setae and 10–19 short dorsal rod setae; hindwing pad with 5 marginal capitated setae and 0–3 short dorsal rod setae. Caudal plate ( Figs 27, 28 ) 1.4–2.0 times wider than long, truncate posteriorly; with (0–2)+(0–2) submedian dorsal and (6–7)+(6–7) lateral long capitate setae and (7–9)+(7–9) short sublateral dorsal rod setae. Outer circumanal ring ( Fig. 29 ) 0.2–0.3 times as wide as caudal plate consisting of a single row of elongate pores.

Measurements (in mm; 3 specimens). Body length 1.02–1.32; antenna length 0.46–0.48; fore wing pad length 0.40–0.44; caudal plate width 0.42–0.56.

Etymology. From Latin convector, noun in apposition, masculine = the fellow traveller, passenger, referring to its broad adventitious distribution along with its hosts.

Distribution. Australia (Northern Territory); adventive in Brunei, Cambodia, India (Odisha), Laos, Malaysia (Sabah), Singapore, Thailand and the United States of America (Florida).

Host plants. Acacia auriculiformis A.Cunn. ex Benth. and A. mangium Willd. ( Fabaceae , Caesalpinioideae, mimosoid clade). Acacia auriculiformis , northern black wattle or ear-pod wattle, occurs in Australia, Papua New Guinea and Indonesia. Its distribution in Australia comprises the north of the Northern Territory including several off-shore islands as well as the Cape York Peninsula and the Torres Strait Islands, Queensland ( Boland et al. 1990). In Papua New Guinea it occurs in the Central and Western Provinces, and extends into Irian Jaya (Papua Barat) and the Kai Islands of Indonesia. Acacia auriculiformis is naturalised widely in Africa, the Americas, Asia and Oceania ( Vélez-Gavilán 2016). Acacia mangium , brown salwood or black wattle, has a similar distribution. It originates from Australia (northeastern Queensland), the Western Province of Papua New Guinea, Irian Jaya and the eastern Maluku Islands ( Francis 2003). It has been planted throughout the tropics and is naturalised in many areas ( CABI 2021).

Comments. Acizzia convector sp. nov. is well characterised by its fore wing pattern and structure of the male and female terminalia in the adults as well as the chaetotaxy in the immatures. It resembles Acizzia beieri Loginova and A. jucunda Tuthill in the male proctiger with a long apical portion and a spine-like process adjacent to the posterior lobe, as well as the paramere with an anterior tooth on the fore margin. It differs from the former in the presence of a dark fore wing pattern and from the latter in two metabasitarsal spurs and the female terminalia bearing hooked long setae posteriorly.

Figures

FIGURES 1–4. 1–3, Acizzia convector Burckhardt & Taylor, sp. nov. (photographs by Lyle Buss, University of Florida); 1, male; 2, female; 3, immature.—4, Monoculture of Acacia auriculiformis trees 6 m high in Florida. This field was bare ground three years prior to taking this photograph (photograph by Scott D. Krueger, Florida Department of Agriculture and Consumer Services, Division of Plant Industry).

FIGURES 5–15. Acizzia convector Burckhardt & Taylor, sp. nov., adults; 5–8, habitus; 5, 6, lateral view; 7, 8, dorsal view; 5, 7, 12, 14, male; 6, 8, 13, female; 9, head, dorsal view; 10, vertex, right half; 11, metatibia, base with genual spine; 12–14, fore wing; 12, 13, wing pattern; 14 surface spinules; 15, details of surface spinules in apical third of cell r2.

FIGURES 16–23. Acizzia convector Burckhardt & Taylor, sp. nov., terminalia; 16, male terminalia, in profile; 17, posterior lobe of male proctiger; 18, paramere, inner face in profile; 19, distal portion of aedeagus, in profile; 20, female terminalia, in profile; 21, detail of circumanal ring; 22, hooked seta; 23, valvulae dorsalis and ventralis.

FIGURES 24–29. Acizzia convector Burckhardt & Taylor, sp. nov., immature; 24, habitus, dorsal view, right side; 25, antennal segments 3–6 with rhinaria and capitate setae on segments 3 and 5; 26, apex of tarsus with claws and arolium; 27, caudal plate, ventral view, left side; 28, caudal plate, dorsal view, right side; 29, circumanal rings and anus.