Spinal and marginal tubercles in apterous viviparous females of Ericaphis voegtlini sp. n. a Two pairs on ABD VII and ABD VIII b Only one tubercle on ABD VII and ABD VIII c One tubercle on ABD VII and two tubercles on ABD VIII d Only two tubercles on ABD VIII (The location of the marginal tubercles indicated by arrows) e Marginal tubercles on ABD II–VII (Tubercles on ABD I and ABD VIII indicated by arrows).