Massocephalus, : LETHIERRY & SEVERIN, 1893

Rider, David A., 2008, Massocephalus stysi, a new species of Pentatomidae (Hemiptera: Heteroptera) from the Philippines, Acta Entomologica Musei Nationalis Pragae 48 (2), pp. 583-590 : 585

Key to species of Massocephalus

1 A distinct, well-defined, oval, pale spot in each scutellar basal angle ( Figs. 1 , 4); lateral margins of hemelytra narrowly pale, lacking pale marginal spot near middle ( Figs. 1 , 4); femora and tibiae immaculate, lacking small brown spots; acetabula pale; ostiolar ruga pale, relatively long, reaching beyond middle of metapleural plate ( Fig. 5). .................... ............................................................................................... M. maculatus Dallas, 1851

– Basal scutellar pale markings consisting of an irregular band across entire basal margin ( Figs. 2 , 9); lateral margins of hemelytra not pale, but with a small, irregular, marginal, pale spot near middle ( Figs. 2 , 9); femora and tibiae with numerous small brown spots; acetabula dark brown; ostiolar ruga dark, relatively short, not quite reaching middle of metapleuron ( Fig. 10). ............................................................................ M. stysi sp. nov.

Figures

Figs. 1-2. Habitus. 1 – Massocephalus maculatus Dallas, 1851; 2 – M. stysi sp. nov.