A new species of Pamphagus (Orthoptera: Pamphagidae) from Algeria with a key to all the species of the genus Benkenana, Naima Massa, Bruno Zootaxa 2017 4254 1 102 110 4C8Q4 [151,441,1395,1421] Insecta Pamphagidae Pamphagus Animalia Orthoptera 3 105 Arthropoda species milevitanus sp. nov.     Materialexamined and typedepository. Algeria, Mila, loc. Chigara  21.V.2016( ♂ holotype); same data  9.V.16( ♀ allotype) ( MSNG);  Algeria, Mila, loc. Chigara  8.V.2014( 1♂, 1♀ paratypes) ( MNHN);  Algeria, Mila, loc. Chigara  22.V.2014( 2♂, 2♀ paratypes); same data  4.VI.2015( 2♂, 1♀ paratypes); same data  8.V.2014( 1♂ paratype);  Algeria, Oum-el Bouaghi, Sigus  24.V.2016( 1♂, 1♀ paratypes) ( BMPC).   Description. Male. Teguments rather smooth. Frontal ridge not projecting forward and compressed. Fastigium of vertex elongate, concave, limited by straight lateral carinulae. Antennae thick, 16¯18 segmented, of which the first 7¯8 with triangular section, others with circular section, as long as head and pronotum together; eyes oval. Median keel of pronotum high and raised, convex and laterally compressed, mainly in the dorsal portion, not or just interrupted by typical sulcus ( Fig. 23). Dorsal posterior margin of metanotum and abdominal tergites, in lateral view, with a small tooth projection. Abdomen moderately carinate ( Figs 5, 23). Krauss’s organ smooth. Tegmina short, like in the other species of  Pamphagus, not exceeding the metanotum. Prosternal tubercle characterized by a bulge that ends anteriorly with two pointed lobes; mesosternal space and metasternal space just wider than long. Last sternite very pointed, cerci conical and short ( Fig. 35). Phallic complex, in lateral view, with long aedeagus ( Fig. 37); aedeagus from back view stout and rhomboidal ( Fig. 50); 3¯4 large black pseudolophi (sensu Ünal 2014) of epiphallus, in single line, short ancorae ( Fig. 37). Female. Same characters of the male with the following differences ( Figs 6, 29). Larger size ( Table 1). Pronotum protruding mainly anteriorly, less posteriorly, ratio length/height of pronotum: 1.0. Mesosternum just wider than long, metasternum 1.5¯2 times wider than long. Ovipositor valves greenish, stout with slightly curved black tips. Cerci conical and pointed. Sub-genital plate rectangular, with a triangular lobe in the middle.  Colour. Green with yellow fore and dorsal margins of pronotum and abdominal carina. Ventral side of femora and inner side of tibiae yellow, tegmina blackish with yellow dorsal margin. Ventral side of tarsi blackish. Abdomen of the female less green than in male with posterior margin of tergites brownish.  Measurements. See Table 1. The ratio between the length and height of the pronotum is on average 1.0 both in males and in females.  Affinities.  P. cristatusis the most related species to  P. milevitanus  n. sp.Both species have a high pronotum, in most specimens the carina is not interrupted by a typical sulcus, and the abdomen is superiorly a little carinate.  P. cristatushas a comparatively longer than high pronotum (ratio length/height: 1.1 on average); in addition there are evident differences in the phallic complex ( Figs 40, 56). For a comparison with other species of the genus  Pamphaguscf. Figs 1¯4, 7¯22, 24¯28, 30¯34, 38¯46, 47¯49, 51¯56 and the key to species below reported.   Etymology. In antiquity Milevumwas the Latin name of Mila;  milevitanusis adjective.   Distribution.  P. milevitanus  n. sp.seems to occur only in the area of the highlands North and South of Constantine, in Mila, Setifand Oum-el Bouaghi provinces. 1455870611 [151,1229,1502,1527] 2016-05-21 Algeria Chigara Material 3 105 2 1 Mila holotype 1455870616 2016-05-09 MSNG Algeria Chigara Material 3 105 1 1 Mila allotype 1455870613 [422,1206,1539,1563] 2014-05-08 MNHN Algeria Chigara 3 105 2 1 1 Mila paratype 1455870617 2014-05-22 Algeria Chigara 3 105 4 2 2 Mila paratype 1455870614 [634,1128,1575,1599] 2015-06-04 Algeria Chigara 3 105 3 1 2 Mila paratype 1455870612 2014-05-08 Algeria Chigara 3 105 1 1 Mila paratype 1455870615 [271,1090,1611,1635] 2016-05-24 BMPC Algeria Sigus Oum-el Bouaghi 3 105 2 1 1 paratype