Nothotrioza longipedis Burckhardt and Halbert, 2020

Halbert, Susan E. & Burckhardt, Daniel, 2020, The psyllids (Hemiptera: Psylloidea) of Florida: newly established and rarely collected taxa and checklist, Insecta Mundi 2020 (788), pp. 1-88 : 64-67

Nothotrioza longipedis Burckhardt and Halbert , new species

LSID: urn:lsid:zoobank.org:act:73C22DC3-A9D7-465D-A080-1DDD8D429EA4

( Fig. 185–200 )

Materials examined. Holotype ♀: USA: Florida : Monroe County, Big Pine Key , Key Deer Boulevard across street from Wildwood Lane, 24.69651, –81.37375, 17.ii.2017, Mosiera longipes (J. Farnum) ( FSCA # E2017-428 ) ( FSCA, dry mounted) . – Paratypes. USA: Florida: Monroe County: 2 ♂, 5 ♀, 54 immatures, 13 skins, same but 22.ix.1988, leaf galls on Mosiera longipes (M. Hennessey) ( FSCA, slide mounted, in 70% ethanol) ; 1 ♀, 1

immature, same data as holotype but 24.688445, –81.369544, 7.ix.2016, Mosiera longipes (J. Farnum) ( FSCA # E2016-4246 ) ( FSCA, slide mounted, 70% ethanol) ; 1 immature, same data but dirt road opposite 1525, 24.68937, –8136969, 17.ii.2017, Mosiera longipes (J. Farnum) ( FSCA # E2017-429 ) ( FSCA, slide mounted) .

Description. Adult ( Fig. 185, 186 ). Coloration. General body color dark brown with light pattern as follows. Vertex with brown disc and whitish margins; occiput whitish. Antennal segments 1 and 2 yellowish, 3–8 brown with dark apex, 9 and 10 dark brown or almost black. Pronotum dirty whitish with brown dots laterally; mesopraescutum brown anteriorly, whitish posteriorly; mesoscutum with four brown longitudinal stripes; mesoscutellum whitish laterally; metapostnotum orange laterally. Tibiae and basitarsi yellowish. Forewing membrane ( Fig. 187 ) transparent, colorless; veins whitish basally light brown apically. Hindwing membrane transparent, colorless. Abdomen dorsally with white median longitudinal stripe, broad at base and apex, narrow in the middle; intersegmental membranes orange or yellow; terminalia brown. – Structure. Head ( Fig. 188 ) inclined at about 45° from longitudinal body axis, wider than pronotum and slightly narrower than mesoscutum. Vertex and dorsal surface of thorax beset with short inconspicuous setae. Antenna 1.7 times as long as head width; relative length of flagellar segments as 1.0: 0.5: 0.6: 0.5: 0.5: 0.5: 0.2: 0.2; relative length of segment 10, longer and shorter terminal setae as 1.0: 2.5: 1.8; shorter terminal seta shorter than antennal segments 9 and 10 together. Rostrum 0.5–0.6 times as long as head width. Thorax weakly arched dorsally. Metatibiae 0.7 times as long as head width; with (2–4)+(3–4) apical spurs. Forewing ( Fig. 187 ) 3.8–4.1 times as long as head width, 2.6–2.7 times as long as wide; vein Rs weakly curved; cell cu 1 relatively large and high, distance between apices of veins M 3+4 and Cu 1a around 0.9 times as long as that between apices of veins Cu 1a and Cu 1b, and distance between apices of vein Cu 1a and Cu 1b about 2.0 times as long as length of vein Cu 1b; surface spinules absent except for a few scattered ones at base; field of radular spinules in cell m 2 about as long as those in cells m 1 and cu 1. Male terminalia ( Fig. 189–191 ) with proctiger 0.5 times as long as head width, beset with long hairs in apical two thirds; in profile, with irregularly curved posterior lobe widest in basal third. Male subgenital plate subglobular, covered in long hairs mostly ventrally. Paramere, in profile, lamellar, with subparallel margins in basal two thirds, slightly narrowing to apex in apical third, with strongly sclerotized apical tooth directed caudad; covered in long setae in apical third on outer face and in long bristles in apical two thirds on inner face. Proximal segment of aedeagus strongly inflated apically; distal segment nearly straight in basal two thirds, hardly inflated apically; sclerotized end tube of ductus ejaculatorius short, strongly curved. Female terminalia ( Fig. 192 ) cuneate. Female proctiger 0.9 times as long as head width, slightly sinuous dorsally, strongly narrowed near apex which is blunt; circumanal ring 0.4 times as long as proctiger, consisting mostly of two rows of unequal pores, except for caudal area which is slightly expanded consisting of a field of round pores; base and apex bearing scattered setae, denser apically, in the middle with medium long setae, with an oblique longitudinal row of very long setae in apical third. Female subgenital plate 0.7 times as long as proctiger, cuneate, pointed apically, beset with setae in apical two thirds, short towards base, long towards apex. Dorsal valvulae cuneate, strongly narrowed apically and bearing a row of dorsal teeth; ventral valvulae almost straight, pointed apically, without teeth. – Measurements (in mm; 1 ♂, 1 ♀). Head width 0.62–0.64; antenna length 1.08; forewing length 2.38–2.62; length of male proctiger 0.30; paramere length 0.24; length of distal segment of aedeagus 0.28; length of female proctiger 0.60.

Fifth instar immature ( Fig. 193–195 ). Coloration. General body color yellowish or ochreous. Eyes dark red. Sclerotized dorsal abdominal plate dark brown; in life, abdomen covered dorsally with white wax ( Fig. 193 ). – Structure. Body elongate and very narrow, 2.4–3.1 times as long as wide; dorsal surface covered in short and very long setae. Antennae 0.4–0.5 times as long as forewing pad, curved, 3-segmented with 4 rhinaria on segment 3. Tarsal arolium ( Fig. 197 ) triangular about twice as long as claws, with unguitractor but without pedicel. Fore and hindwing pads long and narrow, glabrous dorsally. Abdominal dorsum modified into strongly sclerotized almost circular disc-like plate ( Fig. 198 ); several rows of very long setae along the margins, disc covered by lanceolate setae ( Fig. 199 ); abdominal apex rounded. Venter, proximal to circumanal ring with two irregular transverse rows of sclerotized peg setae; outer circumanal ring ( Fig. 200 ) V-shaped, consisting of several rows of pores. – Measurements (in mm; 6 immatures). Body length 2.26–2.58; antenna length 0.36–0.44.

Distribution. USA: Florida (Monroe County).

Host plant. Mosiera longipes (O. Berg) Small (Myrtaceae) . The immatures induce pouch galls on the leaves ( Fig. 194 ). The immature can close the opening of the gall with its strongly sclerotized, modified abdomen.

Derivation of name. Named after its host Mosiera longipes .

Comments. Nothotrioza Burckhardt is a small Neotropical genus with three described species from Brazil inducing globular leaf galls ( Carneiro et al. 2013). Two species are associated with Psidium spp. ( Myrtaceae ) and one was reported from an unidentified species of Malpighiaceae which is, however, a misidentification of a Psidium species (R.G.S. Carneiro, pers. comm.). In recently collected material from Brazil, there are at least as many undescribed species inducing globular leaf galls on Psidium spp. Nothotrioza longipedis shares with the other Nothotriza species the lack of genal processes and the large number of metatibial spurs in the adults, the 3-segmented antennae and the V-shaped outer circumanal ring in the immatures, as well as the association with Myrtaceae and the gall-inducing habit. It differs from the Brazilian species in the smaller body size, the less inclined head, the less hairy (shorter and sparser) vertex and thoracic dorsum, the dorsally less arched thorax, in details of the male and female terminalia, the very narrow, elongate last instar immature, with an apically rounded abdomen which is dorsally sclerotized and modified into an almost circular disc. It differs also in the pouch galls it induces on the host leaves, as opposed to the globular galls produced by Brazilian species.

Phylloplecta Riley, 1884

Figures

Figures 185–188. Nothotrioza longipedis new species, adult. 185) Habitus, oblique dorsal view. 186) Habitus, in profile. 187) Forewing. 188) Head, dorsal view. Scales: 186) 1.0 mm; 187) 0.4 mm; 188) 0.2 mm. (Photos by Lyle Buss, University of Florida, Entomology Department: 185).

Figures 189–192. Nothotrioza longipedis spec. nov., terminalia. 189) Male terminalia, in profile. 190) Inner face of paramere, in profile. 191) Distal segment of aedeagus. 192) Female terminalia, in profile. Scales: 189) 0.1 mm; 190, 191) 0.05 mm; 192) 0.1 mm.

Figures 193–200. Nothotrioza longipedis spec. nov., immature. 193) Habitus, oblique dorsal view. 194) Immature in opened gall. 195) Habitus, in dorsal view. 196) Galls on Mosiera longipes. 197) Tarsal apex. 198) Caudal plate, dorsal view. 199) Base of caudal plate, dorsal view. 200) Circumanal rings, ventral view. Scales: 195) 0.2 mm; 197) 0.02 mm; 198) 0.2 mm; 199, 200) 0.1 mm. (Photos by Lyle Buss, University of Florida, Entomology Department: 193; Jeff Lotz: 194; Jake Farnum, FDACS, DPI: 196).