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Megymenum affine or Megymenum spinosum
About 2-3 cm in length, not including the antennae. Megymenum Guerin, 1831, is from the Megymeninae Subfamily of the Dinidoridae Family. Pentatomoidea is a superfamily of insects in the Heteroptera suborder of the Hemiptera order and, as such, share a common arrangement of sucking mouthparts. They are commonly referred to as shield bugs, chust bugs, and stink bugs. Dinidoridae is a small family of Pentatomoidea divided into two subfamilies (Dinidorinae and Megymeninae). Wikipedia.
Spotted it in the Malunggay leaves (Moringa oleifera). In the garden, in Biñan Laguna, Philippines.
Reference: http://www.cydnidae.uni.opole.pl/bibliot.... According to this paper, there are 2 Megymenum species occurring in the Philippines: M. affine Boisduval, 1835, and M. spinosum (Burmeister, 1834).
Need to changes as ID... This one is in Dinidoridae family... and called Pumpkin Bug.