Bifurcipentatoma, Fan, Zhong - Hua & Liu, Guo - Qing, 2012

Fan, Zhong - Hua & Liu, Guo - Qing, 2012, species from China (Hemiptera: Heteroptera: Pentatomidae), Zootaxa 3274, pp. 14-28 : 16

Key to species of Bifurcipentatoma gen. nov.

1. Abdominal base with spine reaching mesocoxae (fig. 1)......................... B. roseicornuta ( Zheng & Ling, 1983)

– Abdominal base not spined, with short tubercle............................................................. 2

2. Humeral angles of pronotum with the outer margins red; one black spot on each mesopleuron (fig. 2); peritreme shorter than 1/ 3 width of evaporatorium............................................................................... 3

– Humeral angles of pronotum entirely black; two black spots on each mesopleuron (fig. 3); peritreme about equal to or slightly longer than 1/3 width of evaporatorium................................................. B. nigricornuta sp. nov.

3. Humeral angles of pronotum strongly produced and elevated, two apical teeth differring greatly in size, anterior tooth extending anteriorly beyond eye (fig. 4)........................................... B. acuticornuta ( Zheng & Ling, 1983)

– Humeral angles of pronotum weakly produced and elevated, two apical teeth slightly differring in size, anterior tooth not reaching eye (fig. 5)................................................................................... 4

4. Posterior half of pronotum punctured unevenly and sparsely, showing several pale yellow laevigate patches; yellow spot in the middle of each laterotergite very large and wide.................................. B. brunnea ( Zheng & Ling, 1983)

– Posterior half of pronotum punctured thickly and showing no distinct pale yellow laevigate patches; yellow spot in the middle of each laterotergite very small and narrow.............................................. B. parabrunnea sp. nov.