Bioacoustics of Paraeumigus lopezi

Description . Antennae 15–16 (males) and 16- (female) segmented, shorter than head and pronotum together. Teguments are rather wrinkled, fore and hind borders of pronotum clearly protruding, pronotum posteriorly enlarged, with a central stout keel (not furrowed in the males, just furrowed in the female) and two lateral keels, more or less parallel ( Figs. 141, 143, 145 ). Pronotum keel in lateral view is just raised in the males, clearly raised in the female, gently interrupted by typical sulcus ( Figs. 141, 145 ). Central keel is visible also on the first segments of the abdomen. Tegmina are 2.4–2.5 longer than high and are more or less unicolor, with the upper part just clearer than lower one. Mesosternal space is 2.0 times wider than long, and metasternal space 2.5 times wider than long ( Fig. 155 ). Krauss organ smooth. Prosternal process has an evident fore collar and two pointed hind tubercles ( Fig. 142 ). Aedeagus valves, from back view, have long and narrow lobes, enlarged at the apex; central columnar keels arrive to the apex, while the other two remain only in the basal part, which is as wide as long ( Fig. 144 ). In lateral view, aedeagus valves are apically flattened and pointed, the epiphallus shows ca. 35 small spines on the central sides ( Fig. 144 ). Habitat . Specimens were collected in a plain with dispersed Argania trees and a high density of annual grasses. Biological notes . The collector, H. Lopéz, found the specimens as nymphs; they were kept in a plastic container and were feeding with Plantago sp., mulberry, Rumex lunaria and lettuce. Every day, the container was revised to detect possible moulting, mating and/or song emissions. Males were adult on 16th March and 21st April , the female on 29th March . One male remained at the second nymph instar for 55 days and at the third instar for 11 days, the other male remained at the third instar for 50 days; the female remained at the third instar for 38 days and at the fourth instar for other 25 days. Mating occurred in the first days of May ( Fig. 161 ).