Strumigenys lewisi

Identification
Bolton (2000) - A member of the godeffroyi complex in the Strumigenys godeffroyi-group. See notes under Strumigenys godeffroyi.

Distribution
Bolton (2000) - Bingham (1903) recorded this species from Burma but the record has not been confirmed in this survey and is probably incorrect; the specimens, now lost, may perhaps have been Strumigenys peraucta, a newly described Indian species of this complex. W. M. Wheeler (1935) and Wilson & Taylor (1967) record lewisi from Hawaii, where it is an introduction, and Arakelian & Dlussky (1991) record it on Kunashir Island in the Kuril'skiye Ostrova, which is almost certainly part of its normal range.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Niue, Philippines. Oriental Region: Myanmar, Sri Lanka, Taiwan, Vietnam. Palaearctic Region: China, Democratic Peoples Republic of Korea, Japan, Malta, Republic of Korea.

Nomenclature

 *  lewisi. Strumigenys lewisi Cameron, 1886: 229 (w.q.) JAPAN. Wheeler, G.C. & Wheeler, J. 1955a: 140 (l.). Subspecies of godeffroyi: Mayr, 1887: 569 (footnote); Wheeler, W.M. 1906c: 318; Emery, 1924d: 321; Wheeler, W.M. 1923b: 4; Wheeler, W.M. 1928d: 115. Revived status as species: Bingham, 1903: 149; Brown, 1949d: 16. See also: Bolton, 2000: 794; Yoshimura & Onoyama, 2007: 671.

Worker
TL 2.6-2.7, HL 0.65-0.70, HW 0.45-0.48, CI 68-71, ML 0.30-0.32, MI 45-47, SL 0.38-0.42, SI 83-89, PW 0.28-0.30, AL 0.70-0.73 (10 measured).

Characters of godeffroyi-complex. Cephalic dorsum with pair of erect hairs closest to midline on occipital margin short stiff and erect, straight to shallowly evenly curved but the apical half not abruptly curved anteriorly nor looped. With head in full-face view the dorsolateral margin posterior to the flagellate apicoscrobal hair has a row of 3-4 stiffly projecting hairs. These hairs contrast with the marginal hairs anterior to the flagellate hair as they are more cylindrical (i.e. not spatulate), more elevated and less strongly curved anteriorly. Ground-pilosity on pronotal dorsum sparse and dilute, not appearing as a pelt. Dorsum and side of pronotum evenly finely reticulate-punctate everywhere or with a small smooth patch on the side above the fore coxa. Dorsum of pronotum with a pair of erect hairs in addition to the humeral pair. In most samples this pair of hairs is flagellate but in some the hairs are looped apically and in some they appear filiform, though these may represent breakage. Pair of erect hairs on mesonotum usually flagellate but again in some individuals they may be looped or appear filiform. Pleurae and side of propodeum mostly to entirely smooth, any reticulate-punctate sculpture present is confined to periphery. Propodeal declivity with a broad and very conspicuous lamella, the propodeal teeth at most only weakly expressed (may be vestigial or indistinguishable from the lamella), entirely confluent with the lamella. Disc of postpetiole unsculptured. Basigastral costulae conspicuous but not extending half the length of the tergite.

Type Material
Syntype workers and queen, JAPAN: Nagasaki, 3.iii. (G. Lewis) [examined].