Parancistrocerus sulcatus Giordani Soika, 1994

Qin, Jiong, Chen, Bin & Li, Ting-Jing, 2023, Additions to the knowledge of the genus Parancistrocerus Bequaert, 1925 from China (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5256 (4), pp. 345-357 : 356

Parancistrocerus sulcatus Giordani Soika, 1994

Figs 41–48

Parancistrocerus sulcatus Giordani Soika, 1994: 158 ; Gusenleitner, 2010: 696 ; 2011: 1358 .

Material examined. 1♁, China, Chongqing City, Wuxi County, Hongchiba Town , Yusha Village , 31°533′N, 108°844′E, 18.VIII.2019, Li Luo ( CNU) .

Diagnosis. Body length 5.8 mm in male, setae sparse and short, body black, with yellow and ferruginous markings ( Fig. 41 ); basal half of clypeus ( Fig. 42 ), and wide apical bands of both T1–T2 and S2 ( Figs 46–48 ) yellow; pronotum ferruginous anteriorly ( Fig. 45 ); occipital carina complete, almost whole sloping area of anterior face of pronotum polished ( Fig. 45 ); propodeum sloping downward just behind metanotum, dorsal carina weak ( Fig. 44 ); T1 much wider than long and with large dense punctures; both T2 and S2 ( Figs 46–48 ) swollen obviously, almost semicircular in shape and with a row of large and regular punctures close to margin, forming poorly raised submargin, margin narrow and not prolonged medially ( Fig. 46 ), punctures on swelling little larger than those of mesoscutum, interspaces between punctures not convex and equal to or less than punctures ( Fig. 46 ); punctures of lower part of mesopleuron about same as those of upper part; S2 basally with median longitudinal furrow, surroundings depressed; both T3 and S3 without prolongations ( Figs 46, 48 ).

Female (in Gusenleitner 2010). Body length 7.5 mm. Sculpture, setae, and coloration similar to male except as follows: clypeus mostly black, except arched band of clypeus basally ( Figs 1–2 in Gusenleitner 2010).

Distribution. China (Chongqing); Thailand; Laos.

Figures

FIGURES 41–48. Parancistrocerus sulcatus, ♁. 41. Habitus (dorsal view); 42. Clypeus; 43. Antenna; 44. Propodeum and T1 (dorsal view); 45. Head and pronotum (dorsal view); 46. T1–T7 (dorsal view); 47. Metasomal segments 1–7 (lateral view); 48. S1–S7 (ventral view).

FIGURES 1–7. Parancistrocerus fragilitergus sp. n., holotype, ♀. 1. Habitus (dorsal view); 2. Clypeus; 3. Head and pronotum (dorsal view); 4. Propodeum and T1 (dorsal view); 5. Metasoma (dorsal view); 6. S2–S6 (ventral view); 7. Metasomal segments 2–6 (lateral view).