Phalangopsidae crickets (Orthoptera, Grylloidea) from the Mitaraka biological survey, French Guiana Author Desutter-Grandcolas, Laure Institut de Systématique, Évolution et Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS UPMC EPHE UA, case postale 50, 57 rue Cuvier, 75231 Paris Cedex 05 (France) desutter @ mnhn. fr (corresponding author) desutter@mnhn.fr Author Faberon, Léo Gagny, Le Raincy, 93340 (France) faberonl @ gmail. com faberonl@gmail.com text Zoosystema 2020 2020-12-22 42 32 739 797 journal article 9154 10.5252/zoosystema2020v42a32 7753c3e4-2c97-40e8-9098-4d1b2fa88b2a 1638-9387 4399795 urn:lsid:zoobank.org:pub:4B5EE94B-F254-4B4D-BED1-746AE71A5FDC Ectecous lamelliferus Desutter-Grandcolas , n. sp. ( Figs 26 , 27 ; Table 19 ) urn:lsid:zoobank.org:act: BCBABC04-B038-4D9F-B2E0-8463E9B6D069 TYPE LOCALITY. — French Guiana , Monts Tumuc-Humac, Massif du Mitaraka. TYPE MATERIAL. — Holotype by present designation . French Guiana • 1♂ ; Monts Tumuc-Humac , Massif du Mitaraka, D2; 54.451125 O 2.234786 N ; alt. 300 m ; 23.II.-10.III.2015 ; F. Legendre & S. Hugel leg.; fn. SH028, de nuit; MNHN-EO-ENSIF10794 . Paratypes : 2 males . French Guiana • 2 ♂ ; Monts Tumuc-Humac , Massif du Mitaraka , vers sommet en Cloche ; entre 54.4541 O 2.2349 N et 54.4646 O 2.2329 N; alt. entre 370 m et 470 m ; 23.II.-10.III.2015 ; F. Legendre & S. Hugel leg.; fn. SH422, SH423, de nuit; MNHN-EO-ENSIF10795, 10796 . ETYMOLOGY. — Species named after the lamella-shape of pseudepiphallic apical lobes in male genitalia. DIAGNOSIS. — Species very close to E. tenebrosus Desutter-Grandcolas, 1992 by its size, coloration, male FW size and venation, but separated from that species by male genitalia (as in E. tenebrosus , except for lamella-shaped dorsal valves), its slightly more narrow FWs (length/width ratio 1.42, n= 3, against 1.53, n = 6, in E. tenebrosus ), with fewer stridulatory teeth (232 against 259-264, n = 6, mean 262, in E. tenebrosus ). DESCRIPTION In addition to the character of the genus. General morphology Size only slightly bigger than E. tenebrosus . Fastigium, ocelli and palpi as in E. tenebrosus ; with lateral ocelli separate by a distance shorter than their own width. Coloration General coloration as on Fig. 26 . Face as in E. tenebrosus : black, with reversed Y-shaped line under median ocellus, a small yellow spot under antennal pit (in an area with many long setae), and a wider yellow area under lower angle of eye; but median yellow line thinner between antennal pits and spot under anterior angle of eye smaller ( Fig. 27A ). Maxillary palpi as in E. tenebrosus , but article 5 darker ( Fig. 27A ). Vertex ( Fig. 27B ) as in E. tenebrosus , with the most lateral yellow lines (behind the eyes) prolonged as a semi-circular line on the occiput (unnoticed in E. tenebrosus description). Pronotum ( Fig. 27B, C ) and legs ( Fig. 26 ) as in E. tenebrosus . FIG. 26. — Ectecous lamelliferus Desutter-Grandcolas , n. sp. , male paratype MNHN-EO-ENSIF10795 foraging at night on a tree trunk. Photos: Sylvain Hugel. TABLE 19. — Measurements of Ectecous lamelliferus Desutter-Grandcolas , n. sp. (in millimetres).

iod	pron L	pron w	FW L	FW w	FIII L	FIII w	TIII L	Tars1-III
Male holotype	1.4	2.5	3.9	7.8	5.4	12.7	2.9	10.7	2.4
Paratype male (n =2)	1.4	2.5-2.6	4.3	8-8.8	5.8-6.1	12-12.2	3.1	10.3-10.8	2.7-2.8
Mean (n = 3)	1.4	2.53	4.17	8.2	5.77	12.3	3.03	10.6	2.63

Male FWs covering abdomen up to half supra anal plate, as in E. tenebrosus . Venation ( Fig. 27D ): harp with 6 – 8 veins, mirror crossed by 4 – 5 concentric veins. Stridulatory file with 232 teeth (n=1). Subgenital plate short, truncated apically. Distal margin of supra anal plate with many long and thick setae ( Fig. 27E ). Male genitalia ( Fig. 27 F-H) Pseudepiphallic sclerite, rami, ectophallic apodemes, ectophallic fold (short and bifid) and endophallic apodeme as in E. tenebrosus (see Desutter-Grandcolas 1992b, Figs 59-61), but dorsal valves wide and thick, having the shape of nearly vertical lamellas ( Fig. 27H ), with sharp, curved denticles on lower margin ( Fig. 27G ); median lophi (= apical lobes) entirely membranous ( Fig. 27F, G ), convex on outer side, concave with abruptly vertical base on inner side. Female Unknown. Measurements (in mm) See Table 19 .