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FIGURE 1 in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 1. Structures of Limnocoris. (A–B) Part of thorax in ventral view, (A) L. yanomami n. sp., (B) L. surinamensis n. stat., white arrow indicates row of elongate golden setae on mesosternum (C) Propleuron of L. reynosoi, white arrow indicates posterior end of shagreened area. (D–F) Lateral view of mesosternal carina, (D) L. pusillus, (E) L. reynosoi, (F) L. illiesi. (G–H) Dorsal view of abdominal segments III–V, (G) L. pusillus, (H) L. reynosoi, white arrows indicate posterolateral corners. (I–J) Left abdominal sternum II (circled), (I) L. pusillus, (J) L. reynosoi. (K–N) Terminal abdominal sterna of female, (K) L. illiesi, (L) L. minutus, (M) L. pusillus, (N) L. reynosoi.

FIGURE 2. Limnocoris amazonensis Rodrigues & Sites n in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 2. Limnocoris amazonensis Rodrigues & Sites n. sp. (A) Dorsal habitus and (B) ventral habitus of female holotype, hindwing brachypterous (INPA), blue arrow indicates posterior end of propleuron shagreened area, (C) ventral view of part of head and thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.

FIGURE 6 in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 6. Structures of male terminalia. (A, C, E, G) 6th and 7th abdominal terga, (B, D, F, H) 8th abdominal tergum. (A–B) Limnocoris amazonensis n. sp., (C–D) L. burmeisteri, (E–F) L. fittkaui, and (G–H) L. flavescens n. sp. agp = accessory genitalic process, lml = left medial lobe, rml = right medial lobe.

FIGURE 5. Limnocoris flavescens Rodrigues & Sites n in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 5. Limnocoris flavescens Rodrigues & Sites n. sp. (A) Dorsal habitus and (B) ventral habitus of male holotype, hindwing macropterous (UMC), (C) ventral view of part of head and thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B. cl = claval suture, ic = intraclaval suture.

FIGURE 14. Caimen Creek, a in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 14. Caimen Creek, a blackwater stream in the Central Suriname Nature Reserve, the type locality of Limnocoris inflatus n. sp. Photo courtesy of Andrew Short.

FIGURE 12 in Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

FIGURE 12. Structures of male terminalia. (A, C, E) 6th and 7th abdominal terga, (B, D, F) 8th abdominal tergum. (A–B) Limnocoris inflatus n. sp., white arrows indicate the small, rounded, lateral lobes of 7th abdominal tergum, (C–D) L. moreirai n. sp., and (E–F) L. yanomami n. sp.

FIGURE 8 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 8. Additional specimens in life illustrating the variation of coloration within Allobates ripicolus sp. nov., A. tapajos (photos L.J.C.L. Moraes and A.P. Lima) and A. kamilae (photos A.P. Lima).

FIGURE 7 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 7. Dorsal, ventral, left palmar and left plantar views of preserved holotype of Allobates ripicolus sp. nov. and lateral view of the holotype in life. Additional uncollected specimen of a calling male from Sipaliwini, Suriname and a clutch found nearby.

FIGURE 6 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 6. Additional specimens in life illustrating the variation on coloration within Allobates vicinus sp. nov. and A. granti.

FIGURE 5 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 5. Dorsal, ventral, left palmar and left plantar views of preserved holotype of Allobates vicinus sp. nov. and dorsolateral view of the holotype in life.

FIGURE 2 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 2. Morphometric analyses: Principal Component Analysis (PCA) plot of the first two PCs and the correlation circle representing variable contributions for (A) the Allobates granti complex using raw data and (B) size-corrected data, (C) the A. tapajos complex using raw data and (D) size-corrected data.

FIGURE 1 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 1. (A) Maximum Likelihood phylogenetic tree obtained from the analysis of 135 sequences of 16S (546 bp) of Allobates belonging to the A. granti and the A. tapajos complexes. Bootstraps> 50 % are indicated on the left side of the nodes. A backbone mitogenomic phylogeny adapted from Réjaud et al. (2020) indicates the respective phylogenetic positions of these two species complexes within the genus. For the sake of clarity, branches within species are collapsed (full tree available in Appendix 4). (B) Distribution of the different species included in the molecular dataset (plus A. sumtuosus to illustrate the spatial pattern) are depicted by polygons and the limits of the two complexes with dotted lines. The limit of Amazonia is depicted as a white line.

FIGURE 4 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 4. Examples of sonograms of Allobates aff. tapajos, A. tapajos and A. kamilae: (A) depicting a series of calls (a single call in A. tapajos and A. kamilae) on a 1s window and (B) focusing on a single note on a 0.2 s window; (C) PCA plot of the first two PCs and the correlation circle representing variable contributions, and (D) excluding A. kamilae. Only the range of the number of notes per call (NC) do not overlap across the three species.

FIGURE 3 in Two new species of Allobates of the trilineatus clade (Anura: Aromobatidae) from the Eastern Guiana Shield

FIGURE 3. Examples of sonograms of Allobates granti and A. aff. granti: (A) depicting a series of calls on a 1 s window and (B) focusing on a single call on a 0.2 s window; (C) PCA plot of the two first PCs and the correlation circle representing variable contributions. The measured variables are illustrated on the call of A. aff. granti. (D) Box plot of two selected variables whose values do not overlap among species.

FIGURE 5 in Vanilla cameroniana (Orchidaceae, Vanilloideae), a new species from French Guiana and new records from the Guiana Shield

FIGURE 5. New Vanilla records from the Guiana Shield based on herbarium material. A–F Vanilla sprucei, A–B. perianth dissection, C–D. labellum apex, E–F. column apex and anther. G–H. Vanilla dressleri, I. Vanilla corinnae. Based on Redden 2518, US (A,C,E); Redden 1843, US (B,D,F); Cremers 13016, NY (G); Wurdack 43074, US (H); and Wurdack 43170, US (I). Photographs by A. Damián.

FIGURE 4 in Vanilla cameroniana (Orchidaceae, Vanilloideae), a new species from French Guiana and new records from the Guiana Shield

FIGURE 4. Geographic distribution of the species discussed in this study, including the limits of the Guiana Shield. The black-colored datapoints on the map represent occurrences documented in the GBIF database, while the blue-colored datapoints indicate new records reported in this study. Additionally, red datapoints represent the newly described species. The asterisk (*) is used to indicate type material.

FIGURE 3 in Vanilla cameroniana (Orchidaceae, Vanilloideae), a new species from French Guiana and new records from the Guiana Shield

FIGURE 3. Labellum comparison of morphological similar species. A. to V. cameroniana. B. V. hartii. C. V. appendiculata. D–E. V. sprucei. Based on (A) Sabatier D. & Prevost M.-F 4912 (French Guiana, SEL), (B) Stevens 20021 (Nicaragua, SEL), (C) J. Pizango JPF003 (Perú, USM), (D) Redden 1843 (Guyana, US), (E) Redden 2518 (Guyana, US). Photographs by A. Damián (A, B, D, E) and N. Mitidieri (C).

FIGURE 2 in Vanilla cameroniana (Orchidaceae, Vanilloideae), a new species from French Guiana and new records from the Guiana Shield

FIGURE 2. Herbarium specimens studied of Vanilla cameroniana Damián. A. Holotype, Sabatier D. & Prevost M.-F 4912 (SEL047233). © copyright of the Marie Selby Botanical Gardens Herbarium (SEL). B. Bordenave B., N. Raes & L. Betian 4960 (U0112153) © copyright of the Naturalis Biodiversity Center, Leiden.

FIGURE 1 in Vanilla cameroniana (Orchidaceae, Vanilloideae), a new species from French Guiana and new records from the Guiana Shield

FIGURE 1. Line drawing of Vanilla cameroniana based on the French Guiana holotype. A. Habit. B. Leaf adaxial surface. C. Inflorescence. D. Flower, E. Dissected perianth. F. Lip. G. Pubescent detail at the base of the lip. H. Penicillate callus. I. Detail of the lip apex. J. Anther. K. Column with and without anther. Drawing by N. Mitidieri based on A, D iNaturalist record and B, C, E–K Sabatier D. & Prevost M.-F 4912 (SEL).