Euryparyphes (La Greca, 1993)

Chobanov, Dragan & Massa, Bruno, 2022, On some Moroccan Pamphagidae, with the description of a new species of Euryparyphes (Orthoptera: Caelifera), Zootaxa 5104 (3), pp. 409-425 : 423-424

Key to species of Euryparyphes (after Massa 2013, updated)

1. Pronotum laterally compressed, with median keel more or less raised and convex................................ .. 2.

– Pronotum a little dorsally depressed, more or less flat, median keel low, straight or just convex ...................... 12.

2. Median keel of pronotum not interrupted by transverse sulcus, very compressed and raised. Antennal segments longer than wide, hind tibiae inside reddish with bluish base. Mean ratio length/height of hind femora 3.2 in males, 3.4 in females. Large size ( Table 1 ).............................................. Euryparyphes bolivari (Stål, 1876) . Morocco, Spain?

– Median keel of pronotum interrupted by transverse sulcus, compressed or not, more or less raised, hind margins of pronotum festooned. Antennal segments as long as wide (with the exception of central ones). Mean ratio length/height of hind femora 2.6–3.0 in males, 2.7–3.2 in females. Size variable ( Table 1 )................................................. .. 3.

3. Ratio length/ height of tegmen <2.0, lateral keels of pronotum less callused ..................................... .. 4.

– Ratio length/ height of tegmen> 2.0, lateral keels of pronotum more callused ..................................... 6.

4. Pronotum significantly widened in the metazona. Hind femora blackish or cream, spines black with ochreous pre-apical ring. Species of medium size ( Table 1 ) ....................... Euryparyphes defauti La Greca, 1993 . Morocco, Middle Atlas.

– Pronotum not particularly widened in the metazona. Spines of hind tibiae ochreous black or brown tipped. Species of large size ( Table 1 ).......................................................................................... .. 5.

5. Vertex, in lateral view just protruding, not sloping (mainly in females). Base of inner side of hind femora reddish or red, bluish at the apex, sometimes red or blue, hind tibiae black..................................................................................................... Euryparyphes gharbensis Defaut, 1987 . Morocco, Rif and coastal areas.

– Vertex, in lateral view, sloping forwards (mainly in females). Hind femora ochreous or reddish, hind tibiae black-reddish or black......................................... .. Euryparyphes tazzekensis La Greca, 1993 . Morocco, Middle Atlas.

6. Median keel of pronotum just raised or nearly straight in males, just raised in females, hind margin of pronotum protruding with subacute angle. Species of small size ( Table 1 )............................................................. 7.

– Median keel of pronotum raised in both sexes............................................................ .. 8.

7. Smaller sized (body length: male 23.4, female 27.5, ratio length/height hind femora: male 3.0, female 2.6), aedeagus valves in frontal view without widened apex, epiphallus with more or less rectangular pseudolophi ........................................................................................... Euryparyphes minor n. sp. Morocco, High Atlas.

– Larger sized (body length: males 24.0–24.7, females 29.7–33.5, ratio length/height hind femora: male 2.8–3.0, female 3.0–3.1), apex of aedeagus valves in frontal view enlarged, the columnar keels short and particularly wide, epiphallus with long and arched pseudolophi, not enlarged at the base ... Euryparyphes mamorensis Defaut, 1987 . Morocco, area of Mamora (Tiflet).

8. Pronotum significantly widened posteriorly. Inner spines of hind tibiae black or black with pre-apical yellow or red ring... 9

– Pronotum not significantly widened posteriorly. Inner spines of hind tibiae yellow with pre-apical black ring or yellow black tipped .............................................................................................. 10

9. Apical valves of aedeagus in frontal view wider than long, with longer columnar crests. Hind femora inside brown-reddish, tibiae blackish, inner spines black or with pre-apical yellow ring, outer spines yellow black tipped ... Euryparyphes flexuosus Uvarov, 1927 . Morocco, coastal, piedmont and montane areas.

– Apical valves of aedeagus in frontal view longer than wide, with shorter columnar crests........................... 11

10. Upper border of tegmina in most specimens brownish. Hind femora inside light, inner and upper sides of hind tibiae reddish or ochreous, spines yellowish black tipped..................................................................................................... Euryparyphes maroccanus (Saussure, 1887) . Morocco, coastal and piedmont areas.

– Upper border of tegmina cream. Inner spines of hind tibiae black with pre-apical yellow ring................................................................................. Euryparyphes terrulentus (Serville, 1838) . South Spain.

11. Columnar crests of aedeagus valves in frontal view very short. Hind femora inside black or orange, tibiae black, spines black with yellow pre-apical ring ......................... Euryparyphes paraflexuosus La Greca, 1993 . Morocco, High Atlas.

– Columnar crests of aedeagus valves in frontal view longer. Hind femora inside brown-black, with red base, tibiae black-violaceous, outer spines yellow black tipped, inner spines black. Euryparyphes laetus (Bolívar, 1907) .................................................................................... Morocco, coastal, piedmont and montane areas.

12. Species of smaller size ( Table 1 ), pronotum flat, lateral keels not evident ......................................... 13

– Species of larger size ( Table 1 ), median and lateral keels much evident........................................ 15.

13. Brown stripe in the light dorsal area of tegmina absent, fore margin of pronotum straight, hind margin cut. Spines of hind tibiae ochreous black tipped............................................................................... .. 14.

– Brown stripe in the light dorsal area of tegmina present, fore margin of pronotum a little protruding. Hind femora inside brownblackish, tibiae light brown-reddish, spines ochreous black tipped.............................................................................................. Euryparyphes breviphallus La Greca, 1993 . Morocco, High Atlas.

14. Pronotum not tuberculated or wrinkled. Hind femora inside yellow-ochreous, tibiae ochreous or pinkish................................................................... Euryparyphes atlasicus La Greca, 1993 . Morocco, High Atlas.

– Pronotum with some black tubercles, also present in the metanotum and the first tergite. Hind femora inside brown-blackish, tibiae blackish with ochreous-reddish tip .................. Euryparyphes nigripes La Greca, 1993 . Morocco, High Atlas.

15. Inner margin of hind femora with 4–5 evident spines. Species of larger size ( Table 1 ). Hind tibiae inside yellowish or reddish. Pronotum with evident pronotal crest, median keel compressed and three incomplete keels on paranota.................................................... Euryparyphes sitifensis (Brisout de Barneville, 1854) . Tunisia, Algeria, Morocco.

– Inner margin of hind femora with very small spines. Species of smaller size ( Table 1 ). Pronotal keels less evident than in the previous species................................................................................... .. 16.

16. Ratio length/height of tegmen> 2.0 in males. Pronotum straight and enlarged in the metazona, median keel stout. Hind femora inside brown with reddish base, hind tibiae red-blackish, outer spines yellow, inner spines red black tipped or also with black base............... Euryparyphes pictipes Uvarov, 1927 . Morocco, coastal, piedmont and montane areas (Middle Atlas).

– Ratio length/height of tegmen <2.0 in males. Pronotum just enlarged in metazona, median keel not distinctly furrowed longitudinally. Brown stripe in the light dorsal area of tegmina absent. Hind femora and hind tibiae inside yellow or ochreous, spines yellow black tipped...................................... Euryparyphes cinerascens La Greca, 1993 . Morocco, Rif.