Jataiba Burckhardt & Queiroz 2020, gen. nov.
Creators: name: Burckhardt, Daniel
name: Queiroz, Dalva L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Psylloidea
Jataiba

description: Jataiba gen. nov.
LSID: urn:lsid:zoobank.org:act: FA0B08C4-506B-4189-AB6A-501F4538B576
Type species: Jataiba uncigera sp. nov., by present designation; gender feminine.
Diagnosis. Adult. Head wider than mesonotum, inclined at 45° from longitudinal body axis. Vertex with well-developed, big and flattened or small and nipple-like anteorbital tubercle; flat along coronal suture; genal processes long, 0.8–1.1 times as long as vertex along midline, conical, pointed apically, compound eyes moderately large, hemispherical, slightly recessive, preocular sclerite well-developed; in profile, distance between hind margin of occiput and forewing base less than diameter of eye and occiput. Antenna filiform, 1.5–2.0 times as long as forewing. Propleurites narrowly subrectangular, suture oblique; proepimeron larger than episternum. Parapteron subglobular, much larger than tegula. Metapostnotum with smaller or larger median, longitudinal ridge. Forewing oval, 2.1–2.3 times as long as broad, broadly, evenly rounded apically, transparent; pterostigma broad, short; cell cu 1 large. Metatibia bearing distinct genual spine and 1+3+1 apical spurs. Metabasitarsus with two lateral spurs. Fifth instar immature. Body 1.5–2.0 times as long as wide, weakly sclerotised.Antenna 7 or 8-segmented. Forewing pad about a third antennal length, oval, lacking humeral lobes, bearing short and long marginal, very weakly capitate setae. Margin of hindwing pad with moderately long, imperceptibly capitate setae, lacking sectasetae. Legs long, with a few long, very weakly capitate setae on tibiae; tarsal arolium long, twice as long as claws, subtrapezoidal with unguitractor and pedicel. Caudal plate weakly sclerotised; abdominal margin with 4+4 truncate sectasetae which are grouped together, each on a small bump, positioned on either side of circumanal ring in a distance of about half the diameter of the latter. Anus in terminal position; circumanal ring relatively small, vaguely heart-shaped, extending mostly onto abdominal venter, broadly rounded laterally; consisting of several rows of wax pores; extra pore field absent.
Description. Adult (Fig. 71). Medium sized psyllids, 2.7–3.6 mm long. Head wider than mesonotum, inclined at 45° from longitudinal body axis. Vertex subtrapezoidal, down-curved anteriorly; foveae weakly indented; coronal suture fully developed; vertex flat along coronal suture; lateral ocellar tubercle well-developed; anteorbital tubercle well-developed, big and flattened or small and nipple-like; vertex separated from genae by indistinct transverse suture; toruli forming slightly raised rim; genal processes long, 0.8–1.1 times as long as vertex along midline, conical, pointed apically, dorsal surface weakly or strongly inclined from plane of vertex, almost adpressed or widely separated medially (Figs 72, 73); frons small, almost completely covered by median ocellus; compound eyes moderately large, hemispherical, slightly recessive, preocular sclerite well-developed along eye, giving the eye a more or less stalked appearance; occiput narrowly subrectangular in dorsal view; in profile, eye almost completely covering propleurites, distance between hind margin of occiput and forewing base less than diameter of eye and occiput. Antenna filiform, as long as or longer than forewing, 10-segmented; terminal setae shorter than segment 10, flagellum otherwise lacking macroscopic setae; segment 3 shorter than segments 7 or 8, with a single subapical rhinarium on each of segments 4, 6, 8 and 9. Clypeus mostly hidden by genae in lateral view, pear-shaped; rostrum short, 0.3–0.4 times as long as head width, only apex visible in lateral view. Thorax weakly arched dorsally; lacking conspicuous macroscopic setae. Pronotum transversely, narrowly ribbon-shaped, curved anteriad medially; sometimes covered by occiput laterally. Propleurites narrowly subrectangular, suture oblique; proepimeron larger than episternum. Parapteron subglobular, much larger than tegula. Metapostnotum with smaller or larger median, longitudinal ridge. Forewing (Figs 74, 75) oval, 2.1–2.6 times as long as broad, broadly, evenly rounded apically, transparent; veins clothed with fine microscopic setae; vein C+Sc slender, costal break present, pterostigma broad, short; vein R about twice as long as M+Cu; cell cu 1 large; anal break close to apex of vein Cu 1b. Hindwing slightly shorter than forewing; costal setae grouped; vein R+M+Cu splitting into R and M+Cu. Legs moderately long; metacoxa with short, almost straight, horn-shaped, pointed meracanthus; metafemur about three quarters as long as metatibia, slightly thicker than the latter; metatibia bearing distinct genual spine and 1+3+1 apical spurs. Metabasitarsus with two lateral spurs. Abdominal sternite 3 not thickened basally. Male proctiger unipartite, sometimes with posterior lobes (Figs 78–83). Subgenital plate subglobular (Fig. 76). Paramere lamellar (Figs 84, 86, 88, 90, 92, 94). Distal segment of aedeagus club-shaped or S-shaped (Figs 85, 87, 89, 91, 93, 95). Female terminalia, in profile, moderately long, cuneate (Figs 96–100). Proctiger with dorsomedial setae forming longitudinal rows in either side, in apical half. Circumanal ring oval, consisting of two subequal rows of pores. Dorsal margin of subgenital plate with small lobe in some species (Fig. 101). Valvula dorsalis cuneate, dorsal outline smooth, with hardly visible subapical indentation; valvula ventralis weakly curved, pointed apically, bearing subapical tooth; valvula lateralis membranous, narrowly rounded apically.
Fifth instar immature (Fig. 77). Body elongate, 1.5–2.0 times as long as wide, weakly sclerotised. Antenna 7 or 8-segmented, sparsely beset with setae which are about as long as diameter of flagellum; bearing a single subapical rhinarium on each of segments 3 and 5, and two rhinaria on segment 7, or one each on segments 3, 5, 7 and 8. Dorsal body surface sparsely covered in moderately long setae. Forewing pad about a third to half antennal length, oval, lacking humeral lobes; margin with short normal or lanceolate setae and long, very weakly or distinctly capitate setae; dorsum with normal setae. Margin of hindwing pad with moderately long, imperceptibly or distinctly capitate setae; lacking sectasetae. Legs long, with a few long, very weakly capitate setae on tibiae and many short and long setae; tarsal arolium long, twice as long as claws, subtrapezoidal, with unguitractor and pedicel (Fig. 104). Abdomen suboval, broadly rounded terminally; caudal plate weakly sclerotised; abdominal margin with 4+4 truncate sectasetae which are grouped together, each on a small bump (Figs 102, 103), positioned on either side of circumanal ring in a distance of at least a quarter of the diameter of the latter. Anus in terminal position; circumanal ring relatively small, vaguely heart-shaped, extending mostly onto abdominal venter; consisting of one row of irregular, very narrow wax pores; extra pore fields absent.
Egg (Fig. 25). Large, almost 0.3 mm long; oblong oval, about twice as long as wide; irregularly narrowing at apex which is subacute. Judging from the few eggs we have seen in the cleared abdomina of females, it appears that the eggs are soft-shelled and only weakly sclerotised.
Etymology. Combination of the word parts jato- and -iba from the Portuguese names for Hymenaea and Copaifera, jatobá and copaiba, respectively, the two known host genera of the new psyllid genus.
Distribution. Neotropical.
Host plants. Copaifera spp., Hymenaea spp. (Leguminosae).
Comments. Jataiba is erected here for six Neotropical species, described below, five of which are associated with Copaifera and one with Hymenaea. A species known only from a single female, reported as Mitrapsylla sp. B from Panama (Brown & Hodkinson 1988), probably also belongs here. The presence of 4+4 sectasetae, each on a small bump, grouped together on the margin of subgenital plate on either side in immatures, place the new genus into the Ciriacreminae (Psyllidae). From the predominantly Old World genera Ciriacremum Enderlein, Kleiniella Aulmann and Palmapenna Hollis, it differs in the separated veins Rs and M 1+2, which touch or are linked by a crossvein in the former three genera. From the Neotropical genera Auchmerina Enderlein, Auchmeriniella Brown & Hodkinson, Euceropsylla Boselli, Heteropsylla Crawford, Isogonoceraia Tuthill, Manapa Brown & Hodkinson and Mitrapsylla Crawford as well as the Old World genera Insnesia Tuthill and Trigonon Crawford, it differs in the long, pointed genal processes and the lamellar parameres. The genal processes in the former genera are either absent, shorter or apically truncate. The parameres in the former genera are bifid, incised and usually not lamellar (e.g. club-shaped). Morphologically, Jataiba is closest to Mitrapsylla Crawford from which it differs as indicated in the keys to genera above, in particular in the long, pointed genal processes (rather than shorter and/or truncate), in the male proctiger which has no or only short posterior lobes (always with long lobes in Mitrapsylla) and in the relatively small, rounded circumanal ring in immatures (rather that large and undulate).
On the basis of the genal processes (medially separated versus adpressed) and the host associations (Hymenaea versus Copaifera) two putatively monophyletic species groups can be defined within Jataiba: the J. hymenaeae and the J. uncigera -groups respectively. The former contains a single species only and the latter the remainder of species. Of these, J. cearensis, J. cognata, J. incisa and J. uncigera constitute a putatively monophyletic group based on the club-shaped distal portion of the aedeagus bearing an extraordinarily long and massive sclerotised end tube of the ductus ejaculatorius and the lobe on the dorsal margin of the female subgenital plate.
description: Published as part of Burckhardt, Daniel & Queiroz, Dalva L., 2020, Neotropical jumping plant-lice (Hemiptera, Psylloidea) associated with plants of the tribe Detarieae (Leguminosae, Detarioideae), pp. 1-73 in Zootaxa 4733 (1) on pages 20-24, DOI: 10.11646/zootaxa.4733.1.1, http://zenodo.org/record/3669649