Guyalna bicolor Sanborn 2016, n. comb.
Creators: name: Sanborn, Allen F.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Guyalna
Guyalna bicolor

description: Guyalna bicolor (Olivier, 1790) n. comb.
(Fig. 5)
Cicada bicolor Olivier, 1790: 748.
Cicada passerculus Walker, 1850: 125, n. syn.
Cicada spinicosta Walker, 1850: 126, n. syn.
Cicada lacrines Walker, 1850: 132, n. syn.
Fidicina bicolor – Stål 1866a: 171.
Fidicina cayennensis Kirkaldy, 1909: 391.
Dorisiana bicolor – Boulard 1996: 142.
TYPE LOCALITY. — Cayenne, French Guiana.
MATERIAL EXAMINED. — “ FRENCH GUIANA: / Amazone Nature Lodge / 30 km SE Roura on / Kaw Rd. 5-19-II-2010, J. E. Eger, coll., 300 m // N04°33.570’ / W052°12.433’ / 300m UV Light Trap ” 2 ♂ (FSCA), ♂ (coll. AFSC); “ FRENCH GUIANA: 32 / km SE Roura on Kaw / Rd., 9-10-II-2010, J. E. / Eger, MV Light, 287 m // N04°33.612’ / W052°11.350’ ” 2 ♂, 5 ♀ (FSCA), ♂, ♀ (coll. AFSC); “ FRENCH GUIANA: / 12 km W of Risquetout / 10-XII-2002, J. E. Eger / N04° 54.673’ W052 o / 11.150’ 58 m MV Light ” 4 ♀ (FSCA), 2 ♀ (coll. AFSC); “ FRENCH GUIANA: / Entomotech Lodge / 30 km SE Roura on / Kaw Rd. 1- 12-XII- / 2002 J. E. Eger // N04°33.570’ W052°12.433’ / 300 m MV Light ” ♀ (FSCA), 2 ♀ (coll. AFSC); “ FRENCH GUIANA: / 8 km W of Risquetout / 2-XII-2002, J. E. Eger / N04°55.097’ W052° / 33.121’, 45 m MV Light ” ♂ (FSCA), 2 ♀ (coll. AFSC); “ FRENCH GUIANA: / 8 km W of Risquetout / 8-VI-2005, J. E. Eger / N04°55.097’ W052° / 33.121’, 45 m MV Light ” ♂, ♀ (coll. AFSC); “ FRENCH GUIANA: / 14 km E of N2 on rd / to Dégrad Corréze, 6- / XII-2002 J. E. Eger // N04°29.964’ / W052° / 20.260’ / 108 m MV Light ” ♂ (FSCA), ♂ (coll. AFSC); “ FRENCH GUIANA / Belizone, Montagues de / Tortue, 427 m / 4°14’42 N 52°35’06”W / 27 Jan. – 6 Febr. 2003 / H. von Schmeling ” 2 ♂, ♀ (UGCA), ♀ (coll. AFSC); “ FRENCH GUIANA: 8 / km west of Risquetout / 15-IV-2007, D G Hall / & J E Eger, coll. // N 04°55.097’ / W 052°33.121’ / 45 m MV Light ” 4 ♂ (coll. AFSC); “ FRENCH GUIANA: / 27 km SE Roura on / Kaw Rd., 14-IV-2007 / D G Hall & J E / Eger, coll., MV Light ” ♂ (coll. AFSC); “ FRENCH GUIANA: Ama- / zona Nature Lodge, 30 / km SE Roura on Kaw Rd / 10-18-IV-2007, D / G Hall & J E Eger, coll. // N04°33.570’ / W052°12.433’ / 300m UV Light ” ♂, 4 ♀ (coll. AFSC); “ FRENCH GUIANA: 27 / km SE Roura on Kaw / Rd 5-II-2010, J. E. / Eger coll., MV Light // N04°34.116’ / W052°12.614 ” ♀ (FSCA), ♀ (coll. AFSC); “ FRENCH GUIANA: 27 / km SE Roura on Kaw / Rd 21-IV-2007, J. E. / Eger coll., MV Light ” 3 ♂ (coll. AFSC); “ FR. GUIANA: Hwy N2 to / Regina, 67 km. s. of / Cayenne, 6 VI-1986 / E. G. Riley & D. A. Rider // collected at / mercury vapor ” ♀ (LSAM); “ NICARAGUA: Rio San Juan / Prov. Refugio Bartolo, 51 m / 10.97254°N, 084.33906°W / VIII-5-15-2002 / Coll. R. M. Caesar, UV Light ” ♂, ♀ (coll. AFSC); “ PANAMA, Panama Pr. / Cerro Campana, 1700’ / May 17-19. 1987 / E. Giesbert, coll.” ♂ (coll. AFSC); “ PANAMA: Panama Provll / Reserva Sobrina Pine- / line road, 9 km mark / VI-25-1994, blacklight / N. Smith & D. Mitchell ” ♀ (coll. AFSC); “ PANAMA, San Blas Pr. / Nusagandi / 28 may ’95 Cavan” ♀ (coll. AFSC); “ Fca. Biesnan, Colonia / Refug. Los Angeles, 11 / km E Quebrada Grande, / Guan. Prov. COSTA RICA / 500m 13 Jun 1985 / DHJansen & W. Hallwachs // INB0003980785 / INBIOCRI COSTA RICA” ♀ (coll. AFSC); “ COSTA RICA. Prov. Alajuela. Upala. P. N. / Volcán Tenorio. Albergua Heliconias. / 800-900m. 6-9 JUN 2006. B. Gamboa, M. / Moraga.Tp. Luz. L_N_299800_423800 #86394 // INB0004017652 / INBIOCRI COSTA RICA” ♂ (coll. AFSC).
DISTRIBUTION. — The species has been reported under various names from Brazil Colombia, Costa Rica, French Guiana, Nicaragua, and Panama (Metcalf 1963a, Duffels and van der Laan 1985, Martinelli & Zucchi 1997, Boulard 1996, 1998, 2005, 2006, Sanborn 2011, 2013, 2014, Sanborn & Maes 2012, Maes et al. 2012).
REMARKS
The generic assignment of this species was reviewed in the context of the synonymies discussed below. Boulard (1996) assigned the species to Dorisiana Metcalf, 1952 without comment.Both Dorisiana (Delétang 1919) and Guyalna (Boulard & Martinelli 1996) were introduced in the literature as part of keys so a complete morphological analysis of the genera has yet to be produced. Boulard & Martinelli (1996) list three- segmented tarsi, rounded timbal cover apex, pronotum shorter than mesonotum, head as wide or slightly wider than the mesonotum and slightly protruding eyes as characteristic of the genus Guyalna all of which are found in C. bicolor. Delétang (1919) lists a cruciform elevation notched in the form of a more or less open semicircle and Boulard & Marinelli (1996) list a tapered, triangular timbal cover as characteristic of Dorisiana, both of which are absent in C. bicolor. As a result, C. bicolor is hereby transferred to the genus Guyalna to become Guyalna bicolor (Olivier, 1790) n. comb.
My previous report (Sanborn 2011) of Fidicinoides passerculus (Walker, 1850) from French Guiana was in error. The specimens have three segmented tarsi and are thus part of the Guyalnina and not the Fidicinina. Boulard (1996, 1998, 2005, 2006) has described and illustrated G. bicolor n. comb. originating from French Guiana and Brazil which appear to be identical to the specimens previously identified as F. passerculus. Boulard (1996) also recorded and identified G. bicolor n. comb. in the type locality (Pará) for F. passerculus. The specimens I previously identified as F. passerculus also fit the original description of G. bicolor n. comb. (Olivier 1790). As a result, F. passerculus is determined here to be a junior synonym of G. bicolor n. comb. and F. passerculus is removed from the cicada fauna of French Guiana.
The misidentification of specimens as F. passerculus initiated a review of the status of species previously synonymized with it. Fidicinoides spinicosta (Walker, 1850) was first synonymized with F.passerculus by Distant (1906a) perhaps after comparing the type material in the BMNH. Mick Webb has been unable to locate the holotype of F.passerculus in the BMNH (personal communication) but it may have been available when Distant synonymized the species. It was considered a junior synonym of F. passerculus in Metcalf (1963a) but was considered later as a valid taxon by a number of authors (Young 1977, 1980a, b, 1981a, b, 1983, 1984; Duffels & van der Laan 1985; Humphreys 2005; Salazar Escobar 2005; Sanborn 2005, 2010, 2014; Sanborn et al. 2008; Salazar and Sanborn 2009; Santos et al. 2010; Sanborn & Maes 2012; Maes et al. 2012). No comment was given when the species was resurrected and later authors (including myself) perpetuated the use of the taxon based on the earlier works. However, with the reassignment of the French Guiana specimens of F. passerculus to G. bicolor n. comb., the status of F. spinicosta also comes into question.
Cicada spinicosta was described on the following page of Walker (1850) using specimens that originated in the same location (Para, Brazil) as the type of F. passerculus. Boulard (1996) made sound recordings and identified G. bicolor n. comb. in Pará. Walker (1852) again identified specimens as both F. passerculus and F. spinicosta from the same location (“Ega, on the Amazon”) suggesting Walker used minor color variations to distinguish the species.Specimens in my possession from Central and South America fit the original descriptions for both species, which are very similar and differ in minor details, as well as the original description of C. bicolor (Olivier 1790). Mick Webb compared a syntype of F. spinicosta in the BMNH to images of G. bicolor n. comb. originating in French Guiana and specimens previously identified as F. spinicosta from Costa Rica (Fig. 5) and found no significant differences. Thus, Fidicinoides spinicosta is determined here to be a junior synonym of G. bicolor n. comb. as well.
Examples of G. bicolor n. comb. from French Guiana and what had been identified as F. spinicosta from Costa Rica are illustrated in Figure 5. The collection localities are near the extremes of the known distribution for the species yet there are no significant differences in the morphology of the specimens supporting the contention that the species are the same and should be synonymized.
Finally, C. lacrines was first synonymized with F. spinicosta by Distant (1883) after comparing the type material of both species in the BMNH. The synonymy of C. lacrines with F. spinicosta has never been questioned (Metcalf 1963a; Sanborn 2013) and C. lacrines is considered here a junior synonym of G. bicolor n. comb.
description: Published as part of Sanborn, Allen F., 2016, Five new species, a new genus and a new record of cicadas from French Guiana with four new combinations and three new synonymies (Insecta, Hemiptera, Cicadoidea, Cicadidae), pp. 177-199 in Zoosystema 38 (2) on pages 186-188, DOI: 10.5252/z2016n2a2, http://zenodo.org/record/5154396