Perigona (Ripogena) deuvei Kavanaugh and Rainio, 2016

Kavanaugh, David H. & Rainio, Johanna, 2016, Twenty-six New Species of Predaceous Ground Beetles (Coleoptera: Adephaga: Carabidae) from Ranomafana National Park, Madagascar, Proceedings of the California Academy of Sciences 63 (7), pp. 201-268 : 226-228

Perigona (Ripogena) deuvei Kavanaugh and Rainio , sp. nov.

Figure 14

Ripogena n. sp. 1; Rainio 2009: 33 (informal designation).

Perigona (Ripogena) n. sp. 1; Rainio 2012: 73, Rainio 2013: 96 (informal designation).

TYPE MATERIAL.— Holotype ( Figs.14A–B ), a male, in CAS, labeled: “ MADAGASCAR, Ranomafana NP., Vatoharanana , Trail K at 350 m mark, 24.07.2005 ”/ “collected by hand in daytime, F. Ratalata & J. Rainio collectors”/ “ HOLOTYPE Perigona (Ripogena) deuvei Kavanaugh & Rainio sp. n. 2015” [red label] . Paratypes (total of 4): 1 female (in MNHN) labeled “ MADAGASCAR, Ranomafana NP., Vatoharanana , Trail J at 50 m mark, 6.10.2005 ”/ “collected by hand in daytime, F. Ratalata & J. Rainio collectors”/ “239.” [handwritten label] ; 1 female (in CAS) labeled “ MADAGASCAR, Ranomafana NP., Vatoharanana , Trail S at 600 m mark, 9.9.2005 ”/ “collected by hand in daytime, F. Ratalata & J. Rainio collectors”/ “239.” [handwritten label] ; 1 male (in MZF) labeled “ MADAGASCAR, Ranomafana NP., Vatoharanana , Trail S at 600 m mark, 24.7.2005 ”/ “collected by hand in daytime, F. Ratalata & J. Rainio collectors”/ “253.” [handwritten label] ; 1 female (in MZF) labeled “ MADAGASCAR, Ranomafana NP., Vatoharanana , Trail S at 600 m mark, 6.10.2005 ”/ “collected by hand in daytime, F. Ratalata & J. Rainio collectors”/ “245.” [handwritten label]. All paratypes also bear the following label: “ PARATYPE Perigona (Ripogena) deuvei Kavanaugh & Rainio sp. n. 2015” [yellow label] .

TYPE LOCALITY.— Madagascar, Fianarantsoa Province, Ranomafana National Park .

DERIVATION OF SPECIES NAME.— The species epithet, deuvei , is a noun in apposition, derived from the surname of Dr. Thierry Deuve of the Laboratoire d’Entomologie at the Muséum National d’Histoire Naturelle in Paris. We are pleased to name this new species in honor of Dr. Deuve in thanks for his friendship and kind hospitality during our several visits to MNHN in the course of this study.

RECOGNITION.— Size average for subgenus, SBL of males = 3.5– 3.8 mm, of females 3.8– 3.9 mm. Members of this species ( Fig. 14A ) share with those of Perigona heterodera Alluaud (1936) and Perigona prasinus Alluaud (1936) the following features: pronotum with lateral margins without sinuation anterior to hind angles, posterior margin slightly and smoothly convex, and hind angles either obtuse or broadly rounded. These features distinguish members of these three species from those of Perigona bembidioides Alluaud (1936) and Perigona viridimicans Jeannel (1948) , which have distinct sinuation of the lateral margins anterior to rectangular hind angles and a straight basal margin. Members of P. deuvei differ from those of P. prasinus in having smaller body size (SBL = 4.7 mm in P. prasinus ), narrower body form, and dorsum without metallic reflection (dorsum with metallic green reflection in P. prasinus ) but elytra with moderate but distinct iridescence generated by microsculpture comprised of transverse microlines and marjkedly transverse sculpticells. They are most similar to members of P. heterodera in body form and size but differ from them in having the pronotum proportionately longer and male genitalia ( Figs. 14C–D ) with shaft markedly narrowed basally, markedly inflated in apical two-thirds, and apex longer, slender and ventrally bent in lateral view ( Fig. 14C ), slightly deflected left and slightly longer in dorsal view ( Fig. 14D ) than in P. heterodera (see Figs. 351b-c in Jeannel 1948). They differ from members of Perigona descarpentriesi ( Deuve 1998) in having moderately large eyes (eyes markedly reduced eyes in size in P. descarpentriesi ), pronotum distinctly narrower and with less rounded lateral margins, and elytra with only stria 1 deeply impressed, stria 2 and 3 shallowly impressed but evident on disk, striae 4 to 7 effaced, and stria 8 impressed only in apical one-third (striae 1–7 shallowly impressed but evident at least on disc and stria 8 deeply impressed throughout in P. descarpentriesi members). Also, the apex of the median lobe of the male genitalia is narrower in lateral aspect in P. deuvei males (Fig. 143C) than in those of P. descarpentriesi (see Deuve 1998, Fig. 2 .). Finally, P. deuvei members differ from those of the new species described below in having small- er body size, pronotum with lateral margination very narrow throughout, fewer elytral striae evident, and median lobe of the male genitalia with a longer and ventrally bent apex.

GEOGRAPHICAL DISTRIBUTION.— At present, known only from the type locality.

HABITAT DISTRIBUTION.— All specimens of this species were collected by hand in daytime in primary montane rainforest in the Vatoharanana area at an elevation of 1200 m.

Figures

FIGURE 14. Digital images of holotype male of Perigona (Ripogena) deuvei Kavanaugh & Rainio sp. nov. A. Habitus, dorsal aspect; B Labels; C–D. Aedeagus of genitalia; C. Left lateral aspect; D. Dorsal aspect. Scale lines A = 1.0 mm, C–D = 0.25 mm.

FIGURE 2. Digital images of holotype female of Brachypelus ranomafanae Kavanaugh & Rainio sp. nov. A. Habitus, dorsal aspect; B. Labels. Scale line = 1.0 mm.