Jambu, Miglio & Perafán & Pérez-Miles, 2024

Miglio, Laura T., Perafán, Carlos & Pérez-Miles, Fernando, 2024, Jambu, a new genus of tarantula from Brazil (Araneae, Theraphosidae, Theraphosinae), European Journal of Taxonomy 930 (1), pp. 229-248 : 231

Genus Jambu gen. nov.

urn:lsid:zoobank.org:act:B2638CEA-AF12-4A6B-B5E7-127155E0F610

Figs 1–10

Type species

Jambu paru gen. et sp. nov. by present designation.

Diagnosis

Males of Jambu gen. nov. differs from those of all known Theraphosidae by the combined presence of type IV urticating setae and a spatulated, wide, paraembolic apophysis on the palpal bulb. Also, males of Jambu have a pronounced tegular apophysis on palpal bulb. The male tibial apophysis is very sclerotized, composed of two convergent branches, the larger with a short and strong apical spine. Females differ from those of other Theraphosidae by the combination of type IV urticating setae and spermathecae morphology with single lamp-shaped or heart-shaped receptacle. Both sexes have dorsal abdominal patterns of dark brown spots on a lighter brown background.

Etymology

The genus is named after the word ‘Jambu’ which refers to a native plant from Brazilian Amazonia used as an ingredient in traditional gastronomy as Tacacá soup and as a natural analgesic. The gender is neuter.

Composition

Jambu paru gen. et sp. nov, Jambu manoa gen. et sp. nov., Jambu butantan ( Pérez-Miles, 1998) gen. et comb. nov.

Distribution

Northern Brazil, Amazon Basin.

Figures

Fig. 1. Jambu paru gen. et sp. nov., holotype, ♂ (MPEG 7437). A. Abdomen, dorsal view. B. Abdomen, ventral view.C. Carapace, dorsal view.D. Sternum, ventral view.E. Distal right palp and bulb, retrolateral view (arrow shows retrolateral tibial process). F. Oral region, ventral view. G. Right cymbium, ventral view.

Fig. 2. Jambu paru gen. et sp. nov., paratype, ♀ (MPEG 7447). A. Carapace, dorsal view. B. Oral region, ventral view. C. Abdomen, dorsal view. D. Abdomen, ventral view. E. Sternum, ventral view.

Fig. 3. Jambu paru gen. et sp. nov., holotype, ♂ (MPEG 7437), left palpal bulb. A. Prolateral view. B. Retrolateral view. C. Dorsal view. D. Ventral view. Arrows show the embolus. Abbreviations: PA = paraembolic apophysis; PI = prolateral inferior keel.

Fig. 4. Jambu paru gen. et sp. nov. A–D. Holotype, ♂ (MPEG 7437). E. Paratype, ♀ (MPEG 7447). A–B. Left palpal bulb. A. Prolateral view. B. Retrolateral view. C–D. Left tibial apophysis. C. Ventral view. D. Prolateral view. E. Female spermathecae, ventral view. Arrows show embolus. Abbreviations: PA = paraembolic apophysis; PI = prolateral inferior keel. Scale bars = 1 mm.

Fig. 5. Jambu paru gen. et sp. nov., paratypes (♂ MPEG 7442, ♀ MPEG 7440), type IV urticating setae. A. Male, lateral view. B. Male, convex face view. C. Female, lateral view. D. Female, convex face view. Scale bar = 20 μm.

Fig. 6. Jambu manoa gen. et sp. nov., holotype, ♂ (INPA 6131). A. Abdomen, dorsal view. B. Abdomen, ventral view. C. Carapace, dorsal view.D. Sternum, ventral view.E. Distal right palp and bulb, retrolateral view. F. Oral region, ventral view. G. Right cymbium, ventral view.

Fig. 7. Jambu manoa gen. et sp. nov., holotype, ♂ (INPA 6131), left palpal bulb. A. Prolateral view. B. Retrolateral view. C. Dorsal view. D. Ventral view. Arrows show the embolus. Abbreviation: PA = paraembolic apophysis.

Fig. 8. Jambu manoa gen. et sp. nov., holotype, ♂ (INPA 6131). A–B. Male left palpal bulb.A. Prolateral view. B. Retrolateral view. C–D. Male left tibial apophysis. C. Ventral view. D. Prolateral view. Arrows show embolus. Abbreviation: PA = paraembolic apophysis. Scale bars = 1 mm.

Fig. 9. Jambu manoa gen. et sp. nov., holotype, ♂ (INPA 6131), type IV urticating setae. A. Lateral view. B. Convex face view. Scale bar = 20 μm.

Fig. 10. Geographic distribution of the species of Jambu gen. nov.