A review of the genus Nysson Latreille (Hymenoptera: Crabronidae: Bembicinae: Nyssonini) from India Author Kumar, P. Girish text Records of the Zoological Survey of India 2021 121 2 269 277 journal article 10.26515/rzsi/v121/i2/2021/154391 2581-8686 13186217 2. Nysson erythropoda Cameron ( Figure 1–9 ) 1890. Nysson erythropoda Cameron , 242, sex not indicated. Holotype or syntypes : India : Bengal : Barrackpore ( OXUM ). Diagnosis : Apical margin of clypeal lobe bidentate with two sharp teeth ( Figure 3 ); frontal carina high, sharp towards lower side, extending about half towards anterior ocellus; punctation of head coarser ( Figure 2 ); pronotal dorsum not ridged anteriorly; upper part of mesopleuron towards top strongly elevated to form a lamellate projection; propodeal enclosure with coarse longitudinal rugae dorsally; posterolateral propodeal tooth short, blunt; second submarginal cell of forewing as long as third submarginal cell on the lower side ( Figure 6 ); first two metasomal tergites with punctures separated by usually once or twice the diameter of a puncture; pygidium ( Figure 9 ) well developed with small continuous pits, apex narrowly rounded; last metasomal sternite with a median polished longitudinal weak groove, apex of this sternite narrowly roundly projected. Colour : Black, integument dull, the following red: mandible except at apex, legs except base of coxae, and last metasomal segment; the following dull white to pale yellow: stripe on pronotal dorsum not interrupted in middle ( Figure 5 ), narrow band at base of scutellum ( Figure 5 ), first two metasomal terga apically with a narrow transverse stripe interrupted in middle and not extending to sides ( Figure 8 ); the following brown: scape, pedicel, and basal 5 flagellar segments ventrally, and tegulae. Vestiture silvery, short, and appressed, dense only on clypeus, lower half of frons towards inner eye margins, and propodeal dorsum laterad of propodeal enclosure. Wings ( Figure 6 & 7 ) slightly infumated, veins brown. Size : female, 5.0–6.0 mm. Male : Unknown. Material examined : INDIA : Kerala , Kozhikode district , Nambikulam Hills ( 11° 30’ 14’’ N & 75° 50’ 23’’ E , 624 m ), 1♀ , 16.iv.2019 , Coll. Sandra Lishikumar , ZSIK Regd. No. ZSI/WGRC/IR/INV.14473 . Tamil Nadu , Coimbatore district , Tholampalayam ( 11° 11’ 14’’ N & 76° 51’ 00’’ E , 399 m ), 1♀ , 4.i.2019 , Coll. P. Girish Kumar , ZSIK Regd. No. ZSI/WGRC/IR/INV.14474 . Distribution : India : Kerala (new record), Tamil Nadu (new record), West Bengal . Elsewhere : China ( Cameron, 1890 ; Rothney, 1903 ; Yasumatsu, 1942 ).