Crematogaster treubi Emery

Hosoishi, Shingo & Ogata, Kazuo, 2012, Revision of the Crematogaster brevis complex in Asia (Hymenoptera: Formicidae), Zootaxa 3349, pp. 18-30 : 25

publication ID

https://doi.org/ 10.11646/zootaxa.3349.1.2

DOI

https://doi.org/10.5281/zenodo.6170279

persistent identifier

https://treatment.plazi.org/id/3940878F-2833-FFF2-CD82-4BD364EAFBD9

treatment provided by

Plazi

scientific name

Crematogaster treubi Emery
status

 

Crematogaster treubi Emery View in CoL

( Figs 1 View FIGURES 1 – 3. 1 a, 3b, 5c, 10)

Crematogaster treubi Emery, 1896: 246 View in CoL .

LECTOTYPE worker ( MCSN worker) (by present designation) and two paralectotype workers from INDONESIA: Java (M. Massart) ( MHNG) [examined] .

Combination in C. ( Orthocrema ) by Emery, 1922: 132; in C. ( Mesocrema ) by Santschi, 1937: 310. Senior synonym of sic by Emery, 1922: 132.

Crematogaster millardi Forel, 1902: 205 View in CoL .

LECTOTYPE worker (by present designation) and one paralectotype worker from MYANMAR: Moulmain ( Hodgson ) ( MHNG) [examined].

Description of queen by Viehmeyer, 1916: 125. Combination in C. ( Orthocrema ) by Emery, 1922: 132; in C. ( Mesocrema ) by Santschi, 1928: 33. Syn. nov.

Crematogaster treubi var. vastatrix Forel, 1911a: 24 View in CoL . LECTOTYPE worker (top specimen of three on one pin, MHNG worker) (by present designation) and seven paralectotype workers from INDONESIA: Java ( Roepke ) ( MHNG, NHMB) [examined] .

Combination in C. ( Orthocrema ) by Emery, 1922: 132; in C. ( Acrocoelia ) by Santschi, 1928: 34. Syn. nov.

Measurements and indices. HW 0.51-0.74; HL 0.52-0.71; CI 94-104; SL 0.34-0.51; SI 65-74; EL 0.1-0.15; PW 0.28-0.44; WL 0.57-0.81; PSL 0.04-0.1; PtL 0.15-0.22; PtW 0.16-0.22; PtH 0.1-0.14; PpL 0.1-0.15; PpW 0.15- 0.19; PtHI 55-78; PtWI 91-111; PpWI 113-150; WI 81-100 (Seventeen workers measured).

General description of worker. Workers monomorphic.

Compound eyes not projecting from lateral margin of head, the outer margin of eye almost flush with head capsule in full face view. Scape not reaching posterior corner of head, the scape with standing setae.

Anterior margin of pronotal collar almost straight or slightly concave in dorsal view. Metanotal groove shallow. Propodeal spines long and slender, their length longer than the diameter of propodeal spiracles. Anterior margin of metapleural gland bulla reaching or exceeding anterior margin of propodeal spiracle.

Petiole in dorsal view broader anteriorly than posteriorly. Postpetiole weakly bilobed, without distinct longitudinal median sulcus. Subpetiolar and subpostpetiolar processes undeveloped.

Clypeus relatively smooth and shining, but with feeble rugulae. Dorsal face of mesosoma almost smooth and shining. Dorsolateral face of pronotum smooth in dorsal view. Lateral surface of pronotum smooth and shining. Lateral surface of mesonotum with rugulae. Mesopleuron relatively smooth and shining, but the anterodorsal and lower portions weakly sculptured. Longitudinal rugulae developed anteriorly and posteriorly of the metanotal groove in lateral view.

Dorsal face of head, clypeus and mesosoma with abundant standing setae. Fourth abdominal tergite with sparse standing setae.

Distribution. This species is widely distributed, occurring in Cambodia, Thailand, Myanmar, Malaysia (Peninsula and Borneo), Brunei, and Indonesia (Kalimantan, Java, Bali, Sunda Strait, Sulawesi).

Remarks. This species is similar to C. kojimai , but can be distinguished by the long and slender propodeal spines.

Slight morphological variations are found not only in the specimens collected from different localities, but also within nest series collections. Some specimens collected in Bali have shorter propodeal spines in contrast to the usual long and slender spines. The mesopleuron is relatively smooth and shining in most specimens, but especially shining in Sepilok specimens or somewhat shagreened in Pulau Sebeku specimens. These variants are treated as intraspecific variation within C. treubi until molecular data are available.

Specimens examined. CAMBODIA: 5 workers, Rubber Plantation, Kampong Cham, 2. v. 2010 (SH10-Cam-118) (S. Hosoishi) ; 5 workers, Community Forest, Kampong Chnang, 21. iv. 2010 (SH10-Cam-85) (S. Hosoishi) ; 3 workers, Natural Forest (Permanental sample plots), Kampong Thom, 20. xi. 2010 (SH10-Cam-42) (S. Hosoishi) ; 2 workers, Natural Forest, Kampong Thom, 20. xi. 2010 (SH10-Cam-152) (S. Hosoishi) ; THAILAND: 6 workers, Maegar, Phayao, 22. iii. 1990 (no collector’s name) ; 6 workers, Ngao, Lampang, 17. ii. 1991 (no collector’s name) ; 11 workers, Maegar Seed Orch., Phayao, Lampang Province, 16. iii. 1991 (T. Goto) ; 6 workers, Maeklong Watershed, Research Station, Kanchanaburi Prov., W. Thailand, 29. xi. 2003 (TH03-SKY-146) (Sk. Yamane) ; 4 workers, Khao Soi Dao W. S., Chanthaburi Prov., E. Thailand, 19. vii. 1997 (Sk. Yamane) ; MALAYSIA: 12 workers, 7 miles, Cameron Highlands, 9. iii. 2005 (2005c3) (S. Hosoishi) ; 3 workers, 7 miles, Cameron Highlands, 12. iii. 2005 (2005c24) (S. Hosoishi) ; 14 workers, Ulu Gombak, Selangor, 28. xi. 2005 (SH05-Mal-10) (S. Hosoishi) ; 8 workers, Ulu Gombak, Selangor, 7. iii. 2009 (SH05-Mal-29) (S. Hosoishi) ; 5 workers, 7 miles, Cameron Highlands, 9. iii. 2010 (SH10-Mal-15) (S. Hosoishi) ; 4 workers, 7 miles, Cameron Highlands, 9. iii. 2010 (SH10-Mal-01) (S. Hosoishi) ; 4 workers, 7 miles, Cameron Highlands, 9. iii. 2010 (SH10-Mal-02) (S. Hosoishi) ; 7 workers, Malaya Univ., Selangor, 4. iii. 2009 (SH09-Mal-08) (S. Hosoishi) ; 6 workers, Malaya Univ., Selangor, 4. iii. 2009 (SH09-Mal-05) (S. Hosoishi) ; 6 workers, Malaya Univ., Selangor, 4. iii. 2009 (SH09-Mal-06) (S. Hosoishi) ; 4 workers, Sepilok, Sandakan, Sabah, 17. viii. 1981 (K. Masuko) ; 1 worker, Kota Kinabalu, Sabah, Borneo, E. Malaysia, 22. vii. 1996 (K. Eguchi) ; 2 workers, Tower Region, Lambir N. P., Miri, Sarawak (T-1-9) 30. i. 1993 (Canopy Ecology) (Sk. Yamane) ; 6 workers, Poring HQ (ca 600m alt), Sabah, Borneo, E. Malaysia, 10. iii. 2008 (tree decayed part) (SB08-SKY-01) (Sk. Yamane) ; 1 worker, P. Manukan, T. Tunku Abd., Rahman, Sabah, Borneo, 21. iii. 1995 (Sk. Yamane) ; 1 worker, Poring, Kinabalu (nr HQ, 550m alt), Sabah, Borneo, E. Malaysia, 16. iii. 1995 (Sk. Yamane) ; 2 workers, Pulau Sapi, T. Tunku Abd., Rahman, Sabah, Borneo, 12. iii. 1995 (Sk. Yamane) ; SINGAPORE: 4 workers, 4. xii. 1995 (Sk. Yamane) ; BRUNEI: 2 workers, Tasek Merimbun, 11. ii. 1999 (Eg09-BOR-010) (K. Eguchi) ; INDONESIA: 2 workers, Teluk Kabah, Kutai N. P., E. Kalimantan, 17. ix. 1993 (Sk. Yamane) ; 1 worker, Kutai National Park (near Km9), E. Kalimantan, 7. viii. 1992 (Sk. Yamane) ; 1 worker, Sangkimah, Kutai National Park, E. Kalimantan, 11. ix. 1993 (Canopy Ecology) (Sk. Yamane) ; 1 worker, Samarinda, E. Kalimantan, 9-12. viii. 1992 (Sk. Yamane) ; 2 workers, Jasinga, nr Bogor, W. Java, 5. xi. 1985 (Sk. Yamane) ; 2 workers, Campus of Gajah Mada Univ. (100m alt), Yogyakarta, C. Java, 29. xii. 2002 (JV02/03-SKY-31) (Sk. Yamane) ; 7 workers, Pesanggaran (0 m), Bali, 5. x. 2000 (K. Ogata) ; 7 workers, Pesanggaran (0 m), Bali, 5. x. 2000 (J. Abe) ; 3 workers, Pesanggaran (0 m), Bali, 5. x. 2000 (H. Simbolon) ; 2 workers, Pulau Sebesi, Lampung Prov., Sunda Strait, 11. viii. 2005 (RK05-SKY-01) (Sk. Yamane) ; 4 workers, Pulau Sebesi, Lampung Prov., Sunda Strait, 14. viii. 2005 (RK05- SKY-56) (Sk. Yamane) ; 6 workers, Gn. Makaroewa (550m alt), Kab. Maros, S. Sulawesi, 24. i. 2010 (CE10-SKY-34) (Sk. Yamane) ; 2 workers, Benteng, Pulau Togian, Sulawesi, 25. viii. 2008 (Sk. Yamane).

MCSN

Museo Civico di Storia Naturale Giacomo Doria

MHNG

Museum d'Histoire Naturelle

NHMB

Naturhistorisches Museum, Basel

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Crematogaster

Loc

Crematogaster treubi Emery

Hosoishi, Shingo & Ogata, Kazuo 2012
2012
Loc

Crematogaster millardi

Santschi 1928: 33
Emery 1922: 132
Viehmeyer 1916: 125
Forel 1902: 205
1902
Loc

Crematogaster treubi

Santschi 1937: 310
Emery 1922: 132
Emery 1922: 132
Emery 1896: 246
1896
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