taxonID	type	description	language	source
F37B87D8FFE8FA64FF2EFE56FB05C6CC.taxon	type_taxon	Type species. – Ferriantenna excalibur Cumming and Le Tirant, 2021. http: // zoobank. org: act: 6 D 28929 A-DF 04 - 4038 - BB 44 - B 23 DAE 46 BB 82 Taxonomic remarks. – The herein described species fails to yield additionalcluesforthe taxonomic placementof Ferriantenna within the greater Coreidae. Just like other recovered congeneric inclusions, this species is also a nymph and is missing the tip of the abdomen (therefore, diagnostic features such as wing venation, genitalia, and knowing whether or not the adults have / do not have ocelli, are lacking). Differentiation. – Within Cumming and Le Tirant (2021) the genus Ferriantenna was erected for several Cretaceous coreids which differed notably from the only other known Cretaceous coreid with elaborate antennae morphology, Magnusantenna Du & Chen, 2021. Several features were noted to allow differentiation between these genera (length ratio of antennomeres, leg length and thickness, head width, and thorax / abdomen general morphology; Cumming & Le Tirant (2021 )). The herein described species is tentatively placed within the genus Ferriantenna due to having similar compound eye, head, and thorax morphology to the other Ferriantenna species. Interestingly though, this new species also has a few features which are found within Magnusantenna. First, long, thin legs are present in both Magnusantenna and Ferriantenna gracenuoxichenae sp. nov., likely these are required to compensate for their exceptionally long antennae (in both cases longer than their bodies; Fig. 1 C and D), versus other Ferriantenna species which have shorter antennae (with legs that are not quite as long; Fig. 1 A and B). An additional feature which likens our herein described species is the varying morphology between antennomeres II and III (with II relatively simple and III notably different with lobes; Fig. 1 C and D). Within the other known Ferriantenna however antennomeres II and III have very similar morphology (Fig. 1 A and B). As it appears the coreids of the Cretaceous often had elaborate and quite variable antennae morphology, we feel this feature is more plastic / species specific, whereas similar general body plans may indicate more closely shared ancestry more reliably. Following this line of reasoning the herein described species is placed within Ferriantenna, which can be differentiated from Magnusantenna by larger compound eyes relative to the head size, a head that is narrower than the thorax, and a thorax with undulating widths. Whereas Magnusantenna has smaller compound eyes, a head that is the same width as the thorax, and a thorax with straight lateral magins.	en	Cumming, Royce T., Tirant, Stéphane Le, Chen, Huarong (2024): An additional Cretaceous Ferriantenna Cumming & Le Tirant, 2021 species with wildly exaggerated antennae (Hemiptera, Coreidae). Faunitaxys (Reading, England) 12 (5): 1-6, DOI: 10.57800/faunitaxys-12(5), URL: http://dx.doi.org/10.1097/RLU.0000000000005813
F37B87D8FFE9FA66FF01FA16FBB2C451.taxon	description	(Fig. 1 C, 2, 3) ZooBank: http: // zoobank. org / FDF 27 C 53 - E 8 D 2 - 44 B 4 - B 985 - CEE 2589 A 2 AA 0	en	Cumming, Royce T., Tirant, Stéphane Le, Chen, Huarong (2024): An additional Cretaceous Ferriantenna Cumming & Le Tirant, 2021 species with wildly exaggerated antennae (Hemiptera, Coreidae). Faunitaxys (Reading, England) 12 (5): 1-6, DOI: 10.57800/faunitaxys-12(5), URL: http://dx.doi.org/10.1097/RLU.0000000000005813
F37B87D8FFE9FA66FF01FA16FBB2C451.taxon	materials_examined	Holotype. – Amber specimen # SC 4626, GM 12170200548. Roughly a rounded parallelogram piece of amber, approximately 3.69 cm long, 1.96 cm wide, and 1.42 cm thick, with high clarity and 2 small inclusions (one † Archaeatropidae (Psocodea) and a Nematoceran (Diptera )) in addition to the herein discussed species. The herein discussed species is not obscured and close to the surface (Fig. 1 B). Specimen partially complete yet wellpreserved, likely fourth instar. Missing the terminal two or three segments of the abdomen, the hind legs are incomplete, and the terminal antennomeres are missing. Deposited in the Montreal Insectarium (IMQC). Unknown sex. Type locality and horizon. – Kachin State, Myanmar; Upper Cretaceous ~ 98.79 ± 0.62 million years old (Shi et al. 2012). At present this genus and species is only known from this stratum. Differentiation. – At present two congenerics are known (one described (Fig. 1 A) and the other unnamed (Fig. 1 B); both from the same type locality and deposit (Cumming and Le Tirant, 2021 )) and these can be differentiated by antennae morphology. Within congeners, antennomeres II and III have a similar morphology, while in Ferriantenna gracenuoxichenae sp. nov. antennomeres II is relatively simple and antennomeres III has expansions on the dorsal and ventral surfaces (Fig. 3 F).	en	Cumming, Royce T., Tirant, Stéphane Le, Chen, Huarong (2024): An additional Cretaceous Ferriantenna Cumming & Le Tirant, 2021 species with wildly exaggerated antennae (Hemiptera, Coreidae). Faunitaxys (Reading, England) 12 (5): 1-6, DOI: 10.57800/faunitaxys-12(5), URL: http://dx.doi.org/10.1097/RLU.0000000000005813
F37B87D8FFE9FA66FF01FA16FBB2C451.taxon	description	Description. – Mostly complete nymph that appears to be fourth instar (based upon the characters of Schuh and Slater (1995): posterior margins of the hind wing buds not reaching the anterior margin of the first abdominal tergite; ocelli absent; and tarsi two-segmented). Sex unknown due to the instar stage and missing terminalia of the abdomen. The holotype specimen is relatively complete except for the terminal two or three abdominal segments, the hind femora are missing the distal ends and the remainder of the hind legs are missing, and the terminal antennomeres are missing (Fig. 2 A). Overalllength (including antennae which are missing the terminal antennomere) 10.91 mm (measured to the end of the incomplete abdomen, therefore the actual length of the insect is slightly longer). Head. – Antennal socket slightly protruding from the front of the head (Fig. 3 A), approximately 0.18 long by 0.19 mm wide, with a greatest width slightly wider than the first antennomere. Head roughly rectangular, 0.75 mm long by 0.49 mm wide (without including compound eyes), including compound eyes head is 0.89 mm wide. The head vertex is relatively smooth, no notable textures or structures (Fig. 3 A). Clypeus protruding into a stout point. The labrum is long and thin and ends in a fine point. Labium tetramerous, when fully extended the labium reaches almost to the apex of the second antennomere (Fig. 3 A). Labiomeres of various lengths; labiomere I is 0.44 mm long, labiomere II is 1.01 mm long, labiomere III is 1.04 mm long, labiomere IV is 0.50 mm long (Fig. 3 A). Apex of labiomere IV tapering to a fine point which hooks slightly ventrally (Fig. 3 A). Compound eyes prominent and distinctly protrude from the head capsule, are located in the center and take up ca. one third of the lateral head margins (Fig. 3 A). Antennae. – Antennae likely tetramerous (in the holotype only the proximal three antennomeres are preserved but at least a fourth was present at one point judging by the socket at the apex of antennomere III; Fig. 3 C). Based on congeners, there likely was only a fourth segment at the antenna apex, no additional segments, but the morphology is unknown based on the holotype. Overall antennae lengths 6.30 mm (right) and 6.27 mm (left) [both are missing their terminal antennomeres, therefore the actual length would be even longer], notably longer than the damaged holotype body length (4.61 mm). First antennomere tubular and simple, lacking significant features, 0.52 mm long and 0.19 mm wide. Antennomeres II and III laterally flattened. Antennomere II expansions only slightly protruding on both the dorsal and ventral surfaces (ventral slightly more prominently than the dorsal). These expansions are barely present on the proximal end and expand just slightly throughout the length to the distal end of the antennomere. These expansions are very slight, making this antennomere appear long and slender (Fig. 3 F). Margins slightly granular, with no detectable setae. Antennomere surfaces are smooth and possibly slightly tomentose (but this shine could be from the preservation). Second antennomere length 2.90 mm and maximum width 0.19 mm. Antennomere III notably different in shape from antennomere II. The ventral expansion of antennomere III has a maximum width of 0.29 mm and is broader than the dorsal expansion which has a maximum width of 0.17 mm. The ventral expansion steadily expands from the proximal margin for ca. the first third, contracts slightly, then runs parallel with the antennomere shaft for the central third of the expansion, then the distal third reduces until the distal end of the antennomere (Fig. 3 C). The dorsal expansion of antennomere III slightly increases in width until near the middle of the antennomere, then decreases in width only slightly throughout the remainder of the length until the expansion terminates on the distal margin (Fig. 3 C). Margins finely granular, and no observable setae. Surfaces of antennomere III relatively smooth. Antennomere III 2.88 mm long and has a maximum width of 0.45 mm. Fourth antennomere missing in the holotype. Thorax. – Thorax centrally deteriorated, but the margins are moderately intact. Thorax surfaces and margins are smooth and lack fine projections / notable textures. Pronotum roughly hexagonal with the posterior slightly wider than the other margins. The lateral margins expand to approximately the mid-length then contract to the posterior. Overall pronotum length 0.76 mm, anterior width 0.50 mm, posterior width 0.57 mm, maximum width 0.80 mm. Mesonotum and metanotum a similar shape as the pronotum. Mesonotum length 0.69 mm and greatest width 0.92 mm. Metanotum length 0.58 mm and greatest width 0.98 mm. Legs. – All legs of a similar morphology, only slight differences in length and thickness differentiate them (Fig. 3 B). The profemora and mesofemora are of uniform widths (ca. 0.23 mm; Fig. 3 B) and the metafemora are slightly thicker (maximum width 0.26 mm). All femora simple, tubular, no ornamentation. Protibiae and mesotibiae of uniform widths and are longer than the femoral shafts. Protibiae and mesotibiae simple, tubular, with no ornamentation. Femora tubular, with surfaces that are smooth. Tibiae are approximately half as wide as the femoral widths. Tibiae on the proximal end start out smooth but about halfway through the length short, sparse setae start and become denser throughout the remainder of the tibiae length until there is dense but short setae on the distal ends of the ventral tibiae surface. The dense but short setae continue on under the tarsomeres (Fig. 3 D). Tarsi each with two tarsomeres, and the apex of each two distinct tarsal claws, each with a prominent pulvillus. Leg segment lengths: profemora 2.46 mm, mesofemora 2.27 mm, metafemora 1.95 mm (distal ends broken, metafemora incomplete), protibiae 2.29 mm, mesotibae 2.37 mm, metatibiae missing from the holotype. Abdomen. – Abdomen notably damaged in the holotype. Most of the abdomenhas significant deterioration and is curved towards the amber surface where the terminal two or three abdominal segments are missing (Fig. 2 A). Greatest width approximately 0.96 mm. Abdomen without detectable external structures, margins appear to be ca. parallel sided with smooth transitions from one segment to the next.	en	Cumming, Royce T., Tirant, Stéphane Le, Chen, Huarong (2024): An additional Cretaceous Ferriantenna Cumming & Le Tirant, 2021 species with wildly exaggerated antennae (Hemiptera, Coreidae). Faunitaxys (Reading, England) 12 (5): 1-6, DOI: 10.57800/faunitaxys-12(5), URL: http://dx.doi.org/10.1097/RLU.0000000000005813
