Adetomyrma

Yoshimura, Masashi & Fisher, Brian L., 2012, A revision of the Malagasy endemic genus Adetomyrma (Hymenoptera: Formicidae: Amblyoponinae), Zootaxa 3341 (1), pp. 1-31 : 5-10

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

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

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

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

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

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

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

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

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

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

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

Figures

FIGURES 7 – 8. Clypeus and mandible of Adetomyrma workers in oblique full-face view. 7, A. bressleri (CASENT 0205995: holotype); 8, A. caputleae (CASENT 0227994: 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.

FIGURES 9 – 10. Propodeum of Adetomyrma workers in dorsal view. 9, A. bressleri (CASENT 0205995: holotype); 10, A. goblin (CASENT 0227981: holotype). 9, the propodeal spiracles are visible in dorsal view; 10, the propodeal spiracles are not visible in dorsal view.

FIGURES 73 – 80. Workers of Adetomyrma in lateral view and dorsal view. 73, 74, A. bressleri sp. nov. (CASENT 0205995: holotype); 75, 76, A. caputleae sp. nov. (CASENT 0004358); 77, 78, A. goblin sp. nov. (CASENT 0227981: holotype); 79, 80, A. venatrix (MCZTYPE 34786). 73, 75, 77, 79, lateral view; 74, 76, 78, 80, dorsal view.

FIGURES 11 – 12. Metatarsus of Adetomyrma workers in posterior view. 11, A. caputleae (CASENT 0227994: paratype); 12, A. venatrix (CASENT 0489808). 11, the fifth tarsomere distinctly wider compared to fourth; 12, the fifth tarsomere almost the same width as fourth.

FIGURES 13 – 14. Terminal abdominal segments of Adetomyrma males in oblique dorsal view. 13, A. bressleri (CASENT 0008693); 14, A. cassis (CASENT 0163620: 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.

FIGURES 15 – 16. Terminal abdominal segments of Adetomyrma males in oblique dorsal view. 15, A. cassis (CASENT 0163620: holotype); 16, A. venatrix (CASENT 0079480). 15, paramere with a needle-like projection on its posterodorsal portion; 16, paramere without needle-like projection on its posterodorsal portion.

FIGURES 17 – 18. Mesosoma of Adetomyrma males in dorsal view. 17, A. goblin (CASENT 0084070); 18, A. venatrix (CASENT 0151606). 17, notaulus and parapsidal line are clearly impressed on the mesoscutum; 18, notaulus is not impressed but parapsidal line is impressed.

FIGURES 19 – 20. Paramere of Adetomyrma males in lateral view. 19, A. caudapinniger (CASENT 0244415: holotype); 20, A. aureocuprea (CASENT 0227991: 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.

FIGURES 21 – 22. Head of Adetomyrma males in oblique dorsal view. 21, A. caputleae (CASENT 0227999: paratype); 22, A. venatrix (CASENT 0151606). 21, lateral ocellus is distant from the eye; 22, lateral ocellus is close to the eye.

FIGURES 23 – 26. Males of Adetomyrma. 23, 25, A. clarivida (CASENT 0064259: holotype); 24, A. venatrix (CASENT 0151606); 26, A. cilium (CASENT 0007808: 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.

FIGURES 27 – 28. Eye of Adetomyrma males in full-face view. 27, A. cilium (CASENT 0007808: holotype); 28, A. aureocuprea (CASENT 0227991: 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.

FIGURES 29 – 37. Males of Adetomyrma in lateral view. 29, A. aureocuprea sp. nov. (CASENT 0227991: holotype); 30, A. bressleri sp. nov. (CASENT 0008693); 31, A. caputleae sp. nov. (CASENT 0079552); 32, A. cassis sp. nov. (CASENT 0163620: holotype); 33, A. caudapinniger sp. nov. (CASENT 0244415: holotype); 34, A. cilium sp. nov. (CASENT 0007808: holotype); 35, A. clarivida sp. nov. (CASENT 0064259: holotype); 36, A. goblin sp. nov. (CASENT 0084070); 37, A. venatrix (CASENT 0151606).