Red-veined dropwing

Description

Trithemis arteriosa,the red-veined dropwing,is a species of dragonfly in the family Libellulidae.The face of the mature male is deep red,the vertex and top of the frons having a purple sheen.The eyes are deep red and the labium deep yellow with a dark brown stripe in the centre.The synthorax is red with black stripes;mature males often have a purple bloom on the upper thorax.The wings have bright red veins and orange makings at their bases.The pterostigmas are 2.3-2.4 mm long and dark brown.The slender abdomen is bright red;S6-S8 have black wedges on each side;S9 and S10 are black.Females have similar markings,but the abdomen and face are yellow to yellowish brown.The sides of the synthorax are pale yellow-brown,as are the lower sides of S1-S3.