Carebara striata

The type material was collected from secondary shrub vegetation.

Identification
A member of the Carebara escherichi species complex.

Xu (2003) - Close to Carebara capreola, but mandible with 6 teeth, eyes present, propodeum protrudingly dentate, dorsum of gaster densely longitudinally striate.

Distribution based on Regional Taxon Lists
Palaearctic Region: China.

Nomenclature

 *  striata. Oligomyrmex striatus Xu, 2003: 314, figs. 13-15 (s.) CHINA. Combination in Carebara: Fernández, 2010: 202.

Worker
Holotype soldier. TL 2.5, HL 0.78, HW 0.60, CI 77, SL 0.30, SI 50, PW 0.43, AL 0.75, PL 0.25, PH 0.23, DPW 0.28. Head longer than broad, roughly rectangular and moderately narrowed forward. Occipital margin moderately concave, occipital corners rounded. Lateral sides straight. Mandible with 6 teeth. Median portion of clypeus depressed longitudinally, bicarinate and divergent forward, anterior margin concave. Antenna 11 segments with a 2-segmented club, apex of scape reaching 3/7 of the distance from socket to occipital corner. Eye minute with 1 facet. In profile view, occiput with a pair of short triangular horns. Dorsum of head straight. Frontal lobes protruding. Promesonotum high and roundly convex. Promesonotal suture obsolete on the dorsum. Dorsum of mesonotum straight, suddenly down curved at posterior end. Metanotum present, narrow and acutely pointed backward. Mesometanotal groove impressed, metapropodeal groove present. Propodeum with a pair of strong teeth, dorsum concave and down sloping, declivity concave. Petiole pedunculate anteriorly, ventral face weakly depressed, anteroventral corner with an acute tooth, lateral side with a sharp horizontal ridge. Petiolar node triangular, anterior face slope, posterior face nearly vertical, dorsal face narrow and rounded. Postpetiolar node roundly convex and lightly lower than petiolar node, lateral side also with a sharp horizontal ridge. In dorsal view, petiolar node as broad as postpetiolar node, both with quite developed roundly convex lateral ridges.

Mandibles and median portion of clypeus smooth and shiny. Head longitudinally striate, occiput with reticulations. Dorsum of pronotum and postpetiole with reticulations. Mesonotum finely longitudinally striate. Lateral sides of alitrunk, declivity of propodeum and petiole finely densely punctate. Dorsum of gaster densely and longitudinally striate, ventral face smooth. Head and body with dense erect or suberect hairs and dense decumbent pubescences. Scapes and tibiae with dense decumbent pubescences. Body color yellow. Antennae and legs light yellow. Gaster yellowish brown. Apical segments of gaster behind the first one lost.

Workers: unknown.

Type Material
Holotype, soldier, No. A97-1925, 820 m, Nanqian Village, Shangyong Town, Mengla County, Yunnan Province, collected in secondary shrub vegetation by Dr. Xu Zheng-Hui on 15 Aug. 1997.