Review of the Mesovelia horvathi species complex (Hemiptera: Gerromorpha: Mesoveliidae), with the description of seven new species from India Author Jehamalar, E. Eyarin Author Chandra, Kailash Author Polhemus, Dan A. text Zootaxa 2019 2019-08-06 4651 3 471 496 journal article 26077 10.11646/zootaxa.4651.3.4 5722d23f-3533-4621-9ce8-8fec0f035a56 1175-5326 3363374 D1C1327C-D098-499D-9A2F-81504ED52C0D Genus Mesovelia Mulsant & Rey, 1852 Diagnosis. Mesovelia is characterized by the presence of the following characteristics: the antennal tubercle is well developed, and the first antennomere has two subapical spiniform setae dorsally and a single thick seta ventrally; the rostrum is mostly yellowish brown except for the black fourth article, which reaches the middle of the hind coxa; the anterior and posterior margins of the pronotum are straight; the mesonotum is posteromedially produced; the posterior margin of the metanotum is straight; the extensor region of the fore femur has a single subapical setiform spine, and the mid and the hind femur have two subapical spines; the hind tibia is sparsely clothed with medium sized and long dark spines; the apices of the fore and mid tibiae dorsally have grooming combs; sternum VIII of the male mostly has spiniform setal tufts or other modified structures, although these are absent in few species; the proctiger has a short to long median lateral process; the female is somewhat larger and broader than the male. The macropterous form has a pair of small ocelli.