A taxonomic revision of the Asian endemic subgenus Physocrema of the genus Crematogaster (Hymenoptera: Formicidae)
Author
Hosoishi, Shingo
Author
Ogata, Kazuo
text
Zootaxa
2009
2062
15
36
journal article
41180
10.5281/zenodo.186855
23f6f46c-8a7c-48de-81e7-1adcf43ecbc6
1175-5326
186855
85FC2E42-200C-4102-899E-5684317234EA
Key to species based on the worker caste (except for
C
.
bakeri
, which is
incertae sedis
.)
1 Propodeal spines developed and with pointed apices................................................................................................... 2
- Propodeal spines undeveloped and forming obtuse lobes ............................................................................................ 4
2 Antennal club 3-jointed. Pronotum raised steeply toward mesonotum in lateral view ................................
mucronata
- Antennal club 4-jointed. Pronotum raised moderately toward mesonotum in lateral view ......................................... 3
3 In lateral view, pronotum and mesonotum forming a single convexity, propodeum distinctly raised relative to prome- sonotum, metanotal groove deep .........................................................................................................................
vacca
- In lateral view, pronotum and mesonotum forming a single convexity, propodeum slightly raised relative to prome- sonotum, metanotal groove less deep
..................................................................................................
yamanei
sp. nov.
4 Dorsal median portion of head swollen
................................................................................................
tanakai
sp. nov.
- Dorsal median portion of head not swollen .................................................................................................................. 5
5 Propodeal spiracle situated near the metapleural gland orifice, the distance between them about the same as the propodeal spiracle diameter (
Fig. 4
) ............................................................................................................................. 6
- Propodeal spiracle situated away from the metapleural gland orifice, the distance between them much greater than the propodeal spiracle diameter (
Fig. 3
) ....................................................................................................................... 9
6 Clypeus smooth and shining without longitudinal rugulae (
Fig. 1
)
.....................................................................
inflata
- Clypeus striated with rugulae (
Fig. 2
) .......................................................................................................................... 7
7 Dorsal face of head strongly striated with abundant longitudinal rugulae. Scape not reaching posterior corner of head in large workers. Workers with pronounced size polymorphism
..........................................................................
aurita
- Dorsal face of head not strongly striated with longitudinal rugulae. Scape reaching posterior corner of head. Workers monomorphic in size..................................................................................................................................................... 8
8 The posterior portion of pronotum with transverse rugulae in dorsal view (
Fig. 6
)
..................................
physothorax
- The posterior portion of pronotum without distinct rugulae in dorsal view (
Fig. 7
)
..........................................
onusta
9 Dorsal setae on posterior portion of fourth abdominal tergite directed medially (
Fig. 8
)
................................
difformis
- Dorsal setae on fourth abdominal tergite directed posteriorly (
Fig. 9
)....................................................................... 10
10 In lateral view, dorsal profile of promesonotum convex, propodeum distinctly raised relative to promesonotum, metanotal groove very deep
................................................................................................................................
sewardi
- In lateral view, dorsal profile of promesonotum convex, propodeum slightly raised relative to promesonotum, metanotal groove not so deep in dorsal median portion
................................................................................
ampullaris