Passaloecus edentutus Li & Ma, 2024

Li, Jinghong, Ma, Li & Li, Qiang, 2024, Five new species of Passaloecus Shuckard (Hymenoptera, Crabronidae) from China, with a key to Chinese species, Journal of Hymenoptera Research 97, pp. 1141-1161 : 1141-1161

publication ID

https://doi.org/ 10.3897/jhr.97.135489

publication LSID

lsid:zoobank.org:pub:800A093F-E578-428F-BB9E-B2A81E968EBF

DOI

https://doi.org/10.5281/zenodo.14100839

persistent identifier

https://treatment.plazi.org/id/6F867050-BE09-41CA-A4F9-48D9A725A406

taxon LSID

lsid:zoobank.org:act:6F867050-BE09-41CA-A4F9-48D9A725A406

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Passaloecus edentutus Li & Ma
status

sp. nov.

Passaloecus edentutus Li & Ma sp. nov.

Figs 3 A – G View Figure 3

Type material.

Holotype: China • ♀; Tibet, Shigatse City, Yadong County, Shang Yadong Country , Galingang Village ; 27°30'28"N, 88°57'40"E; 3445 m elev.; 24. VII. 2018; NO. 202006141; coll. Shijie Du; sweep net ( YNAU) GoogleMaps . Paratype: China • 1 ♀; Tibet, Shigatse City, Gyirong County, Gyirong Town , Madun Bridge ; 28°23'35"N, 85°19'45"E; 2795 m elev.; 1. VIII. 2018; coll. Shijie Du; sweep net ( YNAU) GoogleMaps .

Diagnosis.

This species differs from P. tuberangustus Bashir & Ma, 2019 and other congeners by these characteristics: hypersternaulus smooth, not crenate; pronotal collar with weak, anterior, transverse carina laterally; lateral surface of propodeum with dense, slender, oblique rugae anteriorly; propodeal enclosure with irregular rugae medially, and sparse, irregular, oblique rugae laterally; mesopleuron coriaceous, posterior area with sparse, indistinct, very short, longitudinal rugae. Passaloecus tuberangustus has the following characters: hypersternaulus conspicuously crenate; pronotal collar without anterior, transverse carina; lateral surface of propodeum smooth and shiny anteriorly; propodeal enclosure with dense, slender, longitudinal rugae, and interspersed with several, short, transverse rugae medially; mesopleuron coarsely coriaceous, posterior area smooth, without rugae.

Description.

Female. Measurements. ♀, BL: 6.9 mm; HLF: HW: HLD = 58: 67: 40; HW: EWd: EW: TW: EL = 67: 16: 16: 35: 43; POD: OOD: OCD = 7: 11: 18; SL: PL: LFI: LFII: WFI: WFII = 25: 7: 8: 8: 4: 5; WAS: AOD: IAD = 7: 10: 9; EDU: EDL = 49: 43; PLL: PW: LTI: WTI = 30: 7: 42: 35.

Color pattern. Body black; mandible ivory except apex reddish-brown; palpi ivory to brown; ventral scape and pronotal lobe ivory; tegula and forewing veins dark brown; all tibiae and tarsis brown to dark brown; sides of lower frons and clypeus with scattered, silvery, short setae; outer margin of the mandible with scattered golden, long setae.

Head. Mandible bidentate apically, inner tooth large (Fig. 3 A View Figure 3 ). Labrum broadly V-shaped, slightly wider than clypeal lobe, apex bluntly rounded, distinctly constricted subapically (Fig. 3 A View Figure 3 ). Clypeus smooth medially, coriaceous elsewhere; free margin of clypeus broadly produced, distinctly emarginated medially (Fig. 3 A View Figure 3 ). Sides of lower frons coarsely coriaceous; scapal hollow coriaceous, shallow, clearly defined; interantennal tubercle narrow and short; frontal median carina distinct, slightly impressed; median and upper frons coarsely coriaceous, slightly convex, with dense, fine punctures (Fig. 3 A View Figure 3 ). Ocellar triangle coarsely coriaceous, nearly flat, with dense, fine punctures (Fig. 3 B View Figure 3 ). Vertex coriaceous, with dense, weak, transverse striations (Fig. 3 B View Figure 3 ). Gena coriaceous, shiny, impunctate. Occipital carina narrow, not crenate (Fig. 3 B View Figure 3 ). Inner and outer orbital furrows lacking (Fig. 3 A View Figure 3 ).

Mesosoma. Pronotal collar with weak, anterior, transverse carina laterally, without antero-lateral corner (Fig. 3 C View Figure 3 ). Scutum coarsely coriaceous, with dense, fine punctures, anterior area nearly right angle, significantly higher than pronotum, posterior area smooth, without rugae; scutal patches absent; admedian line distinctly impressed, extending to 1 / 3 of scutum length; notaulus indistinctly impressed, slightly shorter than admedian line; parapsidal line distinctly impressed, long (Fig. 3 C View Figure 3 ). Scutellum and metanotum coriaceous and impunctate (Fig. 3 C View Figure 3 ). Mesopleuron coriaceous, posterior area with sparse, indistinct, very short, longitudinal rugae; scrobal suture reduced to single trace; hypersternaulus narrowly, weakly impressed, smooth and not crenate; episternal sulcus broad, deeply impressed and distinctly crenate; omaulus absent (Fig. 3 D View Figure 3 ). Metapleuron shiny and smooth (Fig. 3 D View Figure 3 ). Propodeal enclosure matte, not delimited by carina, with irregular rugae medially, and sparse, irregular, oblique rugae laterally; posterior surface of propodeum coarsely coriaceous and with sparse, irregular rugae (Fig. 3 E View Figure 3 ); lateral surface of propodeum with dense, slender, oblique rugae anteriorly, and sparse, robust, oblique rugae posteriorly (Fig. 3 D View Figure 3 ).

Metasoma. Petiole long, conspicuously longer than width; dorsal surface of petiole with indistinct, median, longitudinal groove (Fig. 3 F View Figure 3 ); lateral surface of petiole with two short, longitudinal carinae (Fig. 3 G View Figure 3 ). Gaster shiny, with sparse, tiny punctures; sternum I with median, longitudinal carina and two longitudinal rugae; sternum II deeply impressed basally; gaster slightly constricted between terga I and II (Fig. 3 G View Figure 3 ); pygidial plate lacking.

Male. Unknown.

Distribution.

China (Tibet).

Etymology.

The name edentutus is derived from the prefix e - (= without) and the Latin word dentutus (= dentate), referring to the hypersternaulus smooth, not crenate.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Crabronidae

Genus

Passaloecus