Phanagenia bidenticulata He & Ma 2024, sp. nov.
Creators: name: He, Yi
name: Li, Qiang
name: Ma, Li
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Phanagenia
Phanagenia bidenticulata

description: Phanagenia bidenticulata He & Ma, sp. nov.
urn:lsid:zoobank.org:act: CB34FCE4-7BDC-4805-974E-A2A225BEF2B7
Fig. 1
Type material. Holotype, ♀, China, Yunnan, Honghe Prefecture, Hekou County, Nanxi Town, 22°37′48.7′′N, 103°56′48.4′′E, 108 m, 21.VII.2003, coll. Tingjing LI. Paratypes: 1♀, same location as holotype, 20.VII.2003, coll. Qiang LI; 1♀, China, Yunnan, Xishuangbanna Prefecture, Jinghong City, National Scenery Garden and Golden Beach, 29.IV.2005, coll. Peng WANG; 1♀, China, Yunnan, Qujing City, Luoping County, Duoyi River, 23.VII.2005, coll. Hesheng WANG.
Diagnosis. The new species Phanagenia bidenticulata He & Ma, sp. nov. clearly differs from other congeners by the combination of characters: head in frontal view 0.92–0.95× as broad as high; apical margin of clypeus with two blunt teeth; metapostnotum shorter than metanotum; F1 8.0× as long as its apical width; SMC2 receiving cross vein 1m-cu at middle.
Description. Female (Measurements of the holotype are given in parentheses). Body length 9.2–9.5 (9.5) mm. Fore wing length 8.5–9.7 (9.7) mm (Fig. 1A). Colouration. Integument black except: mandible, clypeus apically; prementum bristles and all claws apically reddish brown; labial palpus, maxillary palpus basally and apically (brown in middle), legs and metasomal segments apically fulvous. Fore wing hyaline, with two different size dark fasciae, the small one pigmented along the basal vein, at the intersection of basal cell, subbasal cell, discal cell I and subdiscal cell I; the large one at subapical area between pterostigma and the second discal cell (including marginal cell basally, SMC1 apically, SMC2, SMC3 basally and discal cell II apically). Pterostigma brown. Hind wing hyaline, not infuscate (Fig. 1I). Integument. Body with silvery pubescence covering; frons around antennal socket, clypeus except apically, pronotum, prosternum, mesoscutum, scutellum, mesopleuron apically, metanotum, propodeum apically, all coxa ventrally, sternum except S6 with sparse, short and erect, white setae; clypeus apically, mandible basally and S6 with dense, long and erect setae. Head. Head in frontal view 0.92–0.95 (0.92) × as broad as high (Fig. 1B). Clypeus convex except apical margin, 1.9× as broad as long, apical margin with two blunt teeth. Labrum unexposed. Mandible bidentate, obtusely convex subapically. Fourth segment of maxillary palpus longest of all palpus, relative length of fourth to sixth palpal segment = 5.5: 4: 4. Fourth segment of labial palpus slender, relative apical width of second to fourth segment = 1.25: 0.75: 0.5. Prementum with many long, stout and curved bristles. Ratio of malar space and antennal pedicel = 0.5: 2.5. Frons with median sulcus shortly impressed, inconspicuous only on supra-antennal area. Inner orbits convergent above, divergent at middle and parallel below (Fig. 1B). UID: MID: LID = 1.1: 1.4: 1.3 (Fig. 1B). Ocelli in acute triangle, anterior ocellus larger than posterior ones, ocellar area slightly elevated (Fig. 1C). Vertex slightly convex above level of eye tops. Gena in dorsal view, strongly receding posteriorly (Fig. 1C), in profile, relative length of eye and gena medially = 8: 3, lower half of gena wider than its upper part (Fig. 1D). Occipital suture present (Fig. 1D). POD: OOD: Od: OCD = 3: 4: 1.8: 5.5 (Fig. 1C). F1 longest and 8.0 × as long as its apical width. Ratio of scape, pedicel, F1 and F2 = 7.5: 2.5: 16: 10 (Fig. 1E). Mesosoma. Pronotum shorter than mesoscutum, ratio of length to width medially = 2: 7, with dorsum flattened medially, gradually sloping anteriorly, posterior margin arched medially. Pronotal collar depressed and much lower plane than thoracic dorsum in lateral view (Fig. 1F). Mesoscutum with parapsidal sulcus reaching nearly 2/3 of mesoscutum. Disc of scutellum scarcely raised above level of mesoscutum in lateral view. Metanotum 1.75× as long as metapostnotum at midline, laterally with transverse striations. Metapostnotum with dense, transverse striations and inconspicuous, longitudinal depression medially, anterior margin straight, posterior margin curved in dorsal view. Propodeum with irregular, transverse rugae and a shallow, longitudinal and broad median groove. Sides of propodeum slightly convex in dorsal view, its posterior surface with gradually sloping, without distinct edge, ratio of length to width medially = 17.5: 16.5. Relative length of mesoscutum, metanotum, metapostnotum and propodeum medially = 7.5: 3.5: 2: 17.5 (Fig. 1G). Mesopleuron with shallow and inconspicuous mesopleuraulus (Fig. 1H). Legs. Relative length of fore, mid and hind femur/tibia = 2.1: 1.8, 2.5: 2.5, 3.3: 3.8. All tibiae with fine and short spines dorsally. All tarsus beneath with two rows of spines (Fig. 1J). Longer spur of hind tibia 0.52× hind tarsomere I. All tarsal claws dentate and sharp apically (Fig. 1J). Wings. Fore wing marginal cell slightly longer than its outside to wing tip, relative length in middle = 25: 24. Relative length of SMC2: SMC3 = 9: 14 on vein M, 6: 8 on vein Rs. SMC2 1.8× as high as long, receiving cross vein 1m-cu at its middle. SMC3 2.1× as high as long, receiving cross vein 2m-cu at its base, distant from outer wing margin by 1.2× its own length. Cross vein 2rsm slightly curved, not vertical to vein M. Cross vein 2m-cu curved outward. Cross vein cu-a originating distal to point of separation of vein M+CuA. Hind wing cross vein rs-m nearly vertical to vein M. Cross vein cu-a joins vein M+CuA much before juncture of M with CuA (Fig. 1I). Metasoma. T1 petiolate, with lateral crest on each side (Fig. 1G). S2 with obvious transverse groove. S6 not compressed laterally. T6 with pygidial area (Fig. 1K).
Male. Unknown.
Distribution. China (Yunnan) (Fig. 3).
Etymology. The specific epithet bidenticulata is derived from the Latin bi - (=double) and denticulata (=denticulate), referring to the clypeus with two blunt teeth, which is one of the main recognition characters of this species.
Remarks. In the similar species Phanagenia takasago Tsuneki: the head in frontal view 1.1× as broad as high; apical margin of the clypeus slightly angulate at middle; the metapostnotum as long as the metanotum; F1 5.0–5.8× as long as its apical width; SMC2 receiving cross vein 1m-cu at basal 0.38.
In addition, this new species also clearly differs from Ph. hippolyte (Smith) and other congeners by the combination of characters: the propodeum with irregular and transverse rugae; the body with silvery pubescence; SMC2 1.8× as high as long. In the species Ph. hippolyte: the propodeum scarcely striate; the body with golden pubescence; SMC2 2.0× as high as long.
description: Published as part of He, Yi, Li, Qiang & Ma, Li, 2024, The genus Phanagenia Banks, 1933 (Hymenoptera: Pompilidae) from China with descriptions of two new species and a key to the world species, pp. 542-552 in Zootaxa 5446 (4) on pages 543-545, DOI: 10.11646/zootaxa.5446.4.6, http://zenodo.org/record/11102272