Platyjassus griswoldi,

Dietrich, Christopher H., Magalhães, Raysa Brito de & Takiya, Daniela M., 2020, Revision of the endemic Malagasy leafhopper tribe Platyjassini (Hemiptera: Cicadellidae: Iassinae), European Journal of Taxonomy 695, pp. 1-89: 45-46

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scientific name

Platyjassus griswoldi

sp. nov.

Platyjassus griswoldi  sp. nov.

Figs 2JView Fig, 9View Fig H–J, 17G –I


This species is named for Dr. Charles Griswold, noted spider expert and one of the collectors of the type series.

Material examined


MADAGASCAR • ♂; “ MADAGASCAR: Mahajanga Province, Mahavavy River, 6.2 km 145° SE Mitsinjo, elev 20m, 1–5 Dec 2002, 16°03′06 ″S, 45°54′30″ E, coll. Fisher, Griswold et al. California Acad. of Sciences collected at light - in gallery forest, code: BLF6933”; CAS.GoogleMaps 


MADAGASCAR • 1 ♂; Mahajanga, Mahavavy River , 6.2 km 145° SE of Mitsinjo; 16°03′06 ″S, 45°54′30″ E; alt. 20 m; 1–5 Dec. 2002; Fisher, Griswold et al. leg.; collected at light; gallery forest; coll. code: BLF6933; INHSGoogleMaps  1 ♀; same collection data as for preceding; CASGoogleMaps  .

Other material MADAGASCAR – Antananarivo • 1 ♂; 3 km 41° NE of Andranomay, 11.5 km 147° SSE of Anjozorobe; 18°28′24″ S, 47°57′36″ E; alt. 1300m; 5–13 Dec. 2000; Fisher, Griswold et al. leg.; Malaise trap inGoogleMaps 

montane rainforest; coll. code: BLF2375; CAS. – Mahajanga  1 ♂; Réserve dʼAnkoririka , 10.6 km 13° NE of Tsaramandroso; 16°16′02″ S, 46°02′55″ E; alt. 210 m; 9–14 Apr. 2001; Fisher, Griswold et al. leg.; Malaise trap; tropical dry forest; coll. code: BLF3665; INHSGoogleMaps  .


Length of male 7.5 mm, female 8.8 mm. Dorsum bright yellow except anterior margin of crown and lateral margin of pronotum white. Crown approximately as long as pronotum, anterior margin parabolic. Hind tibial rows PD, AD and AV with 18–19, 13–14 and 11–12 macrosetae, respectively. Style apophysis densely denticulate ventrally, broadened to distal two thirds in lateral view, then gradually narrowed, abruptly curved dorsad and tapered to acute apex. Connective anterior margin truncate. Aedeagus with shaft symmetrical, relatively short, curved dorsad, with pair of angulate lateroapical flanges, gonopore apical on posterior surface; basal process arising from ventral end of atrium, well separated from shaft, extended posteroventrad for short distance, then bent at right angle and extended posterodorsad, distal part asymmetrically twisted and blade-like, apex acuminate. Female abdominal sternite VII with posterior margin weakly trilobed. Second valvulae strongly and evenly broadened from base to near midlength; dorsal margin rising to bluntly angulate peak, then descending evenly to acute apex, distal third finely serrate with teeth slightly offset between sides.


The males from Antananarivo Province and Réserve dʼAnkoririka (Majajanga) are excluded from the type series because they exhibit variation in the aedeagus that may eventually prove to be interspecific. The former has the aedeagus with the shaft slightly longer and more slender than that of the holotype, with the apex constricted distad of the lateroapical processes in posterior view and the basal appendage broadened preapically. The latter has the preapical processes of the aedeagus relatively small.


California Academy of Sciences


Illinois Natural History Survey