taxonID	type	description	language	source
F90EED709B3A7C402BE893E3FEF4F9A9.taxon	materials_examined	Type species: Litophallus inornatus Bahder & Bartlett gen. et sp. n.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3A7C402BE893E3FEF4F9A9.taxon	diagnosis	Diagnosis. Medium-sized. Head in lateral view broad, lachrymiform or broadly rounded and projected for distance greater than maximum width of eye; head broader than long (length 0.5 – 0.8 x greatest width); vertex convex, apex rounded. Vertex narrowly triangular, lateral margins in contact at head apex, disc deeply concave (median carina obsolete). Frons strongly narrowed with lateral margins in close contact for entire length. Pits on lateral margins of vertex and frons. Lateral ocelli obscure or absent. Antennae with scape bearing elongated curved projection (projection shorter than antennal length), pedicel elongated and curved, about 3 x longer than scape. Apex of rostrum reaching hind coxae, apical segment short (about as wide as long). Composite vein reaching CuP before wing margin (i. e., clavus open), C 5 cell (i. e., procubital cell) closed. Stridulatory plate on trailing margin of hindwing small, with concave external margin. Hind tibia lacking lateral spines, second tarsal segment bearing two apical spines. Hind tibial spinulation 4 – (4 – 5) – 2. Aedeagal shaft straight, lacking processes, endosoma simple (lacking processes in type species).	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3A7C402BE893E3FEF4F9A9.taxon	etymology	Etymology. The genus name is derived from the Greek word ‘ litos ’ (plain, simple), combined with phallus (with the terminal s in litos dropped for euphony), a reference to the simple aedeagus in the type species. The name is intended as masculine.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3A7C402BE893E3FEF4F9A9.taxon	discussion	Remarks. The new species forms a monophyletic group with S. schellenbergii in all analyses, with 100 % support in the combined analysis. Litophallus gen. n. is similar to Shellenius in general habitus and the rounded apex of the head. Litophallus gen. n. differs in that the head is shorter than the greatest width. The terminalia of the new species differ from Shellenius balli in having a much smaller medioventral process of the pygofer, the gonostyli (ventral view) bear a strong, sclerotized, median hook in S. balli (as opposed to a rounded lobe, Bahder et al. 2023 d, fig. 8 E), and the aedeagus of S. balli has endosomal processes (none in the new species). Collectively, we believe these support a new genus for the new species and S. schellenbergii. Unfortunately, the male terminalia of S. schellenbergii have not been described and are not available to examine for this species. Two factors make us cautious about defining a new genus composed of these two species. First, the distribution of S. schellenbergii (United States) and that of the new species (Jamaica) is not an expected biogeographic pattern (although we note similar appearing species on iNaturalist in Central, e. g., observation 177454242 from El Salvador, and northern South America, e. g., observation 204624316 from Colombia). Second, the high level of genetic variance between the two may indicate that both taxa represent distinct genera. They are 1.7 % and 10.7 % different for 18 S and the D 9 – D 10 expansion region of 28 S, respectively, levels which appear to be genus level differences, albeit for closely related taxa (see Otiocerus and Apache, Figs. 7 & 8 and Tables 3 & 4). Furthermore, the novel taxon differs from S. shellenbergii by a level similar to that which it differs to S. ballii and S. serratus, whereas the two Shellenius species (S. ballii and S. serratus) differ from each other by 0.6 % percent (for 18 S). So while morphological, biogeographical and genetic patterns may suggest that the novel taxon and S. shellenbergii merit distinct genera, it is evident that S. shellenbergii is closer to the novel taxon than Shellenius s. s. and without additional taxa to analyze, elect to transfer S. shellenbergii to Litophallus gen. n. until additional taxon sampling is available.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3A7C402BE89469FC42F810.taxon	description	(Fig. 4)	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	description	(Figures 5 – 9)	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	materials_examined	Type Locality. Spring Garden, Portland Parish, Jamaica.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	diagnosis	Diagnosis. Pale species, uniformly white with slight yellow mark on genae. Head tear drop shaped in lateral view (subelliptical). Sinuate process arising from first antennal segment. Aedeagus and endosoma simple, lacking armature, recurved directly cephalad at base of endosoma.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	description	Description. Color. Ground color (Fig. 5) white in males, light yellow in females. Head with faint orange-red band from eye to front of head (weaker in males), females also with brown-orange marking along ventral margin of head extending from band to clypeus. Body otherwise pale. Wings clear, without distinct markings. Structure. Body length male (n = 1): 4.0 mm with wings; 2.1 mm without wings (Table 5), female (n = 1) 5.3 mm with wings, 2.5 mm without (Table 5). Head. In dorsal view (Fig. 6 A), vertex narrowly triangular, disc deeply concave, lateral margins in contact at head apex, anterior margin medially emarginate, posterior margin concave, rounded; lateral margins thickened and foliate, bearing small sensory pits. In lateral view (Fig. 3 B), head profile subelliptical, vertex concave, apex rounded. In frontal view (Fig. 6 C), lateral margins of frons touching for entire length, bearing row of sensory pits. Antennal scape bearing elongate projection, curved laterad; pedicel elongated, sinuate, apexally expanded, angled cephalad and slightly laterad. Eyes oval with emargination on posterior margin. Thorax. Pronotum, in dorsal view (Fig. 6 A), narrow (about 0.5 x vertex at midline) with anterior margin rounded; posterior margin deeply concave; median carina obsolete, lateral carinae extending to lateral margins; in lateral view (Fig. 6 B), dorsal margin anteriorly declinate, gently curved. Mesonotum in dorsal view, elongated (about equal in length to vertex + pronotum collectively), longer at midlength than greatest width, tricarinate, median carina complete to posterior margin, lateral carinae sinuate, faint. Forewings (Fig. 7) spatulate, apex of clavus in proximal third, C 5 cell closed, branching pattern RA 3 - branched, RP 2 - branched, MP 8 - branched, CuA 2 - branched, anastomosed to fuse with composite vein CuP + Pcu + A 1. Male Terminalia. Pygofer, in lateral view (Fig. 5 A), narrow and irregular on anterior and posterior margin, lateral margin of pygofer opening projected into short beak-like projection, hooked ventrad; in ventral view (Fig. 8 B), medioventral process present as low, rounded lobe. Gonostyli, in lateral view (Fig. 8 A), slender and elongated, scoop-like, curved on dorsal (concave) and ventral (convex) margins, apex acute; in ventral view (Fig. 8 B), medial margins strongly sinuate, forming two lobes (and median concavity), proximal smaller than distal lobe. Aedeagus (Fig. 9) simple, shaft straight (lacking projections); endosoma a simple, membranous, translucent, retrorse lobe, lacking processes, reaching midpoint of aedeagal shaft. Anal tube, in lateral view (Fig. 8 A), subrectangular and simple, dorsal and ventral margins irregularly sinuate, reaching gonostylus apex, quadrate in dorsal view (Fig. 8 C); paraproct small and subapical. Plant associations. Coconut palm (Cocos nucifera L.).	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	distribution	Distribution. Jamaica.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	etymology	Etymology. The specific name is derived from the Latin word ‘ inornatus ’ (unadorned), a reference to the absence of processes on the aedeagus. The name is intended as masculine to agree with the genus.	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	materials_examined	Material examined. Holotype male “ ♂ ” (FLREC) “ Jamaica, Portland Parish / Spring Garden / 15. II. 2022 / sweeping coconut palms / Coll.: B. W. Bahder // Holotype / Litophallus inornatus ♂ ”; paratype 1 female, same data as holotype (FLREC).	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
F90EED709B3B7C452BE890E4FC81FE7C.taxon	discussion	Remarks. Aside from geography, P. inornatus sp. n. differs from P. schellenbergii in color (white or yellowish in the former, Fig. 2, vs yellowish with red markings in the latter, Figs. 9 A, B). P. inornatus sp. n. also has a shorter head (length ~ 0.5 x greatest width, vs. ~ 0.8 x in P. schellenbergii).	en	Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E., Bartlett, Charles R. (2025): A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae. Zootaxa 5723 (2): 209-226, DOI: 10.11646/zootaxa.5723.2.3, URL: https://doi.org/10.11646/zootaxa.5723.2.3
