A revision of the Malagasy endemic genus Adetomyrma (Hymenoptera: Formicidae: Amblyoponinae) Author Yoshimura, Masashi Author Fisher, Brian L. text Zootaxa 2012 2012-06-11 3341 1 1 31 https://biotaxa.org/Zootaxa/article/view/zootaxa.3341.1.1 journal article 10.11646/zootaxa.3341.1.1 10b73727-8726-4994-a2ed-3d2a008678c9 1175-5326 213817 Key to species of Adetomyrma Workers Workers of aureocuprea , caudapinniger , cilium , and clarivida are unknown. 1. Only a single hair present lateral to (outside of) the longest hair on the anterior margin of the clypeus in full-face view ( Fig 7 ). Denticle present on base of subapical (second from apex) tooth ( Fig 7 ) with no gap present between basal dentition and apical teeth............................................................................................... 2 -. Two or more hairs present lateral to the longest hair on the anterior margin of the clypeus in full-face view ( Fig 8 ). Denticle absent on base of subapical (second form apex) tooth ( Fig 8 ) with a gap present between basal dentition and apical teeth... 3 FIGURES 7–8. Clypeus and mandible of Adetomyrma workers in oblique full-face view. 7, A. bressleri (CASENT0205995: holotype); 8, A. caputleae (CASENT0227994: paratype). 7, only a single hair is present lateral of the longest anterior clypeal hair; 8, two or more hairs are present lateral of the longest anterior clypeal hair. 7, a denticle is present on the base of the subapical tooth; 8, no denticle is present on the base of the subapical tooth. 2. Propodeal spiracle large, visible in dorsal view at posterior lateral corner of propodeum ( Fig 9 ). In lateral view, petiolar spiracle large, its horizontal diameter as long as the distance between the spiracle and anterior margin of petiolar node... bressleri -. Propodeal spiracle small, not visible in dorsal view ( Fig 10 ), located on lateral propodeum ( Fig 77 ). In lateral view, petiolar spiracle small, its horizontal diameter distinctly shorter than the distance between the spiracle and anterior margin of petiolar node............................................................................................ goblin FIGURES 9–10. Propodeum of Adetomyrma workers in dorsal view. 9, A. bressleri (CASENT0205995: holotype); 10, A. goblin (CASENT0227981: holotype). 9, the propodeal spiracles are visible in dorsal view; 10, the propodeal spiracles are not visible in dorsal view. 3. Posterior margin of head flat. In posterior view, fifth (apical) tarsomere distinctly wider compared to fourth ( Fig 11 ). Ventral margin of head in lateral view distinctly convex...................................................... caputleae -. Posterior margin of head concave. Fifth (apical) tarsomere in posterior view almost the same width as fourth ( Fig 12 ). Ventral margin of head in lateral view relatively flat.......................................................... venatrix FIGURES 11–12. Metatarsus of Adetomyrma workers in posterior view. 11, A. caputleae (CASENT0227994: paratype); 12, A. venatrix (CASENT0489808). 11, the fifth tarsomere distinctly wider compared to fourth; 12, the fifth tarsomere almost the same width as fourth. Males 1. Parameres broadly overlapping dorsally, almost along the whole length of basimere ( Fig 13 ). Posterodorsal portion of paramere with a distinct, flattened, needle-like projection, and with a deep notch separating the projection and paramere ( Fig 13 ).......................................................................................... bressleri -. Parameres not or sometimes narrowly overlapping dorsally on small part of basimere ( Fig 14 ). Posterodorsal portion of paramere without needle-like projection, or without a deep notch separating the projection and paramere ( Fig 14 )......... 2 FIGURES 13–14. Terminal abdominal segments of Adetomyrma males in oblique dorsal view. 13, A. bressleri (CASENT0008693); 14, A. cassis (CASENT0163620: holotype). 13, paramere is broadly overlapping dorsally, and with a deep notch separating between a needle-like projection and paramere; 14, paramere is not or narrowly overlapping dorsally, and without a deep notch between a needle-like projection and the paramere. 2. Posterior portion of paramere narrow, forming a blunt, needle-like projection ( Fig 15 ). Large species (WL> 2.1mm ).... cassis -. Posterior portion of paramere wide, not forming a needle-like projection ( Fig 16 ). Small to medium species (WL< 2.1mm ).. 3 FIGURES 15–16. Terminal abdominal segments of Adetomyrma males in oblique dorsal view. 15, A. cassis (CASENT0163620: holotype); 16, A. venatrix (CASENT0079480). 15, paramere with a needle-like projection on its posterodorsal portion; 16, paramere without needle-like projection on its posterodorsal portion. 3. Notaulus distinctly impressed on mesoscutum ( Fig 17 ). Body color usually black to blackish brown, rarely brighter. Small species (WL 0.79–1.28mm )........................................................................ goblin -. Notaulus not impressed on mesoscutum ( Fig 18 ). Body color usually brown to yellow, sometimes darker. Medium to small species (WL 1.03–2.03mm )............................................................................ 4 FIGURES 17–18. Mesosoma of Adetomyrma males in dorsal view. 17, A. goblin (CASENT0084070); 18, A. venatrix (CASENT0151606). 17, notaulus and parapsidal line are clearly impressed on the mesoscutum; 18, notaulus is not impressed but parapsidal line is impressed. 4. Paramere with a broad, distinct lobe posterodorsally ( Fig 19 ). Subpetiolar process small, but distinct. Palpal formula 2,2.............................................................................................. caudapinniger -. Paramere without distinct lobe posterodorsally ( Fig 20 ). Subpetiolar process distinct or indistinct. Palpal formula usually 3,3 rarely 2,3............................................................................................ 5 FIGURES 19–20. Paramere of Adetomyrma males in lateral view. 19, A. caudapinniger (CASENT0244415: holotype); 20, A. aureocuprea (CASENT0227991: holotype). 19, a broad and distinct lobe is present on posterodorsal portion of the paramere; 20, a broad and distinct lobe is absent on posterodorsal portion of the paramere. 5. Lateral ocellus relatively small and distant from eye; distance between them more than 1.5× maximum diameter of lateral ocellus ( Fig 21 ). Subpetiolar process developed, with few hairs. Body color brown........................... caputleae -. Lateral ocellus relatively large and close to eye; distance between them less than 1.5× maximum diameter of lateral ocellus ( Fig 22 ). Subpetiolar process variable, but usually poorly developed and often without hairs. Body color brown to yellow.. 6 FIGURES 21–22. Head of Adetomyrma males in oblique dorsal view. 21, A. caputleae (CASENT0227999: paratype); 22, A. venatrix (CASENT0151606). 21, lateral ocellus is distant from the eye; 22, lateral ocellus is close to the eye. 6. Distance between lateral ocelli about same length or less than maximum diameter of mid ocellus. Distance between lateral ocellus and eye 0.5× or less than maximum diameter of lateral ocellus ( Fig 23 ). Hairs on compound eye more than 0.33× of horizontal diameter of mid ocellus. Anterior face of mesofemur with only subdecumbent short hairs ( Fig 25 )...... clarivida -. Either distance between lateral ocellus distinctly longer than maximum diameter of mid ocellus, or distance between lateral ocellus and eye distinctly longer than 0.5× length of maximum diameter of lateral ocellus ( Fig 24 ), or hairs on compound eye distinctly shorter than 0.33× length of horizontal diameter of mid ocellus, or anterior face of mesofemur with short and dense long hairs ( Fig 26 )..................................................................................... 7 FIGURES 23–26. Males of Adetomyrma . 23, 25, A. clarivida (CASENT0064259: holotype); 24, A. venatrix (CASENT0151606); 26, A. cilium (CASENT0007808: holotype). 23, 24, head in oblique dorsal view; 24, 26, mesofemur in dorsal view. 23, lateral ocellus is large, and close to the eye; 24, lateral ocellus is small, and distant from the eye; 25, only short hairs are present on the anterior face of the mesofemur; 26, short and long hairs are present on the anterior face of the mesofemur. 7. Hairs on compound eye longer than 0.5× length of horizontal diameter of mid ocellus ( Fig 27 ). Subpetiolar process developed............................................................................................... cilium -. Hairs on compound eye shorter than 0.25× length of horizontal diameter of mid ocellus ( Fig 28 ). Subpetiolar process not developed........................................................................................... 8 FIGURES 27–28. Eye of Adetomyrma males in full-face view. 27, A. cilium (CASENT0007808: holotype); 28, A. aureocuprea (CASENT0227991: holotype). 27, hairs on the eye longer than 0.5× length of horizontal diameter of the mid ocellus; 28, hairs on the eye are shorter than 0.25× length of horizontal diameter of the mid ocellus. 8. Body color uniform dark brown ( Fig 37 ). Parapsidal line clearly impressed, usually highlighted with darker pigment. venatrix -. Body bicolored, head brown and the other body parts yellow ( Fig 29 ). Parapsidal line usually unclear, sometimes weakly impressed, without pigmentation............................................................... aureocuprea