Crematogaster

Blaimer, Bonnie B., 2012, A subgeneric revision of Crematogaster and discussion of regional species-groups (Hymenoptera: Formicidae), Zootaxa 3482, pp. 47-67 : 59

x. Crematogaster borneensis- group

1. Antennae 10-segmented.

2. Head shape rectangular, longer than wide.

3. Petiole in dorsal view suboval ( Fig. 18 a), circular ( Fig. 21 a) or hexagonal ( Fig. 22 a). 4. Postpetiole globular (e.g. Figs 21 b, 24, 25), a faint posterior impression may be present.

Most members of this group are obligate inhabitants of Macaranga plants. Species associated with this clade are C. borneensis André , C. decamera Forel , C. captiosa Forel and several undescribed species (Feldhaar et al., in prep.).

Figures

FIGURES 12 – 19. 12: posterior head margin rounded [Crematogaster (Orthocrema) rasoherinae, CASENT 0193412]; 13: posterior head margin with subangular corners [C. (Orthocrema) volamena, CASENT 0012744]; 14 a: petiole moderately flared, b: postpetiole weakly bilobed (dorsal view) [C. (Crematogaster) pilosa, CASENT 0193165]; 15 a: petiole broadly flared, b: postpetiole weakly bilobed (dorsal view) [C. (Crematogaster) lobata, CASENT 0193045]; 16 a: petiole sharply flared, b: postpetiole distintly bilobed with broad median impression (dorsal view) [C. (Crematogaster) flava, CASENT 0193691]; 17 a: petiole greatly flared, b: postpetiole distintly bilobed (dorsal view) [C. (Crematogaster) dahlii, CASENT 0193602]; 18 a: petiole oval, b: postpetiole weakly bilobed and with faint median impression (dorsal view) [C. (Crematogaster) cf. mjobergi, CASENT 0193799]; 19 a: petiole suboval, b: postpetiole distintly bilobed (dorsal view) [C. (Crematogaster) ranavalonae, CASENT 0193425].

FIGURES 20 – 27. 20: petiole elongate rectangular (dorsal view) [Crematogaster (Crematogaster) irritabilis, CASENT 0193598]; 21: petiole circular (dorsal view) [C. (Crematogaster) subcircularis, CASENT 0193915]; 22 a: petiole hexagonal, b: postpetiole distintly bilobed (dorsal view) [C. _ ss _ AUS 3, CASENT 0193798]; 23: postpetiole with a thin median impression [C. (Crematogaster) irritabilis, CASENT 0193598]; 24: postpetiole lacking median impression (dorsal view) [C. (Crematogaster) treubi, CASENT 0193783]; 25: postpetiole with faint median impression (dorsal view) [C. (Crematogaster) onusta, CASENT 0193714]; 26: propodeal spiracle compressed oval [C. _ ss 11 (= bbb 43), CASENT 0193399]; 27: occipital carinae reduced [C. (Crematogaster) cf. buchneri, CASENT 0193750].