Picromerus Amyot and Serville 1843
Creators: name: Zhao, Qing
name: Liu, Guoqing
name: Bu, Wenjun
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Picromerus

description: Key to the species of Picromerus Amyot and Serville from China   
1 Pronotal humeral angle sharp angulated, with a subapical prominence or tooth and same color as the pronotal disc......... 2  
- Pronotal humeral angle obtuse angulated, without a subapical prominence or tooth, color different from disc............. 5  
 2 Connexivum entirely black; the apex of humeral angle with an obvious tooth (Fig. 23); body dorsum black, hardly with yellow spots; membrane passing the end of abdomen slightly; aedeagus with one pair of basolateral conjunctival lobes, proximal branch small, short, membranous; distal branch long, narrow, with sclerotized apex; apical conjunctival lobe short and bifurcate, stretch out from apical part of theca (Fig. 59).................................................... P. griseus   
- Connexivum black and yellow, humeral angle slightly bifurcate, posterior branch only a prominence (e.g. Fig. 24)......... 3  
 3 The anterolateral margin of pronotum with a broad yellow-white margin, anterior branch of pronotal humeral angle very long and the apex slightly curved (Fig. 24); head above and beneath, anterolateral pronotal submargin, incisures of connexivum and ventral surface of pronotal humeral angles, lateral area of sternum more or less marked with metallic-green shades................................................................................................ P. viridipunctatus   
- The anterolateral margin of pronotum without such broad yellow-white margin, nearly same color with other part of pronotum.................................................................................................... 4  
 4 Buccula relatively narrow, outer margin straight, with 2–3 rows of punctures (Fig. 13, arrow noted); lateral sides of the ventral abdomen evenly scattered with finely black spots, not formed into black belts (Fig. 15); paramere slim and long, apex hooked and sharp(Figs. 37, 52); aedeagus with one pair of basolateral conjunctival lobes, proximal branch small, short, membranous; distal branch long, narrow and with sclerotized apex; apical conjunctival lobe long, bifurcate (Fig. 57)............ P. bidens   
 - Buccula relatively broad, outer margin curved, with 4–6 rows of punctures (Fig. 14, as arrow noted); lateral sides of the ventral abdomen with series of black spots, sometimes formed into black belts (Fig. 16,); paramere wide in basal part, apex hooked and digitiform (Fig. 38, 53); aedeagus with one pair of basolateral conjunctival lobes, proximal branch small, semicircled; distal branch long, narrow and with sclerotized apex; apical conjunctival lobe long and bifurcate, stretch out from apical part of theca obviously (Fig. 58).......................................................................... P. lewisi   
 5 Head black, center with a broad mesial yellow-brown band, including clypeus and vertex, continuing to base of head; anterolateral pronotal margins thick, with sparse, obtuse tooth; the calli outlined in black, with some black irregular short band radiating backward; dorsal surface of body intumescent, not flat (Fig. 17); humeral angles black, shortly porrect (Fig. 25)................................................................................................ P. fasciaticeps   
 - Head yellowish uniformly; anterolateral pronotal margins relatively thin and with small obtuse teeth; the back margin of calli outlined in black unclearly; dorsal surface of body flat, not intumescent (Fig. 18); humeral angles elevated, pale and long (Fig. 26).................................................................................. P. elevatus sp. nov.
description: Published as part of Zhao, Qing, Liu, Guoqing & Bu, Wenjun, 2013, A review of the Chinese species of the genus Picromerus Amyot and Serville, with description of a new species (Hemiptera: Heteroptera: Pentatomidae: Asopinae), pp. 146-164 in Zootaxa 3613 (2) on pages 147-148, DOI: 10.11646/zootaxa.3613.2.3, http://zenodo.org/record/5292617