Prenolepis jacobsoni Crawley, 1923

Williams, Jason L., 2016, Taxonomic revision and phylogeny of the ant genus Prenolepis (Hymenoptera: Formicidae), Zootaxa 4200 (2), pp. 201-258 : 227

publication ID

https://doi.org/ 10.11646/zootaxa.4200.2.1

publication LSID

lsid:zoobank.org:pub:82A45A60-4A76-43A3-9F95-F37AC43F4F97

DOI

https://doi.org/10.5281/zenodo.6087134

persistent identifier

https://treatment.plazi.org/id/03B58794-424E-6D36-849F-A1C1AFA187BF

treatment provided by

Plazi

scientific name

Prenolepis jacobsoni Crawley, 1923
status

 

Prenolepis jacobsoni Crawley, 1923 View in CoL

( Figs 83–85 View FIGURES 83 – 85 )

Prenolepis jacobsoni Crawley, 1923: 30 View in CoL (w.). Neotype worker [designated here], INDONESIA: West Sumatra, Maninjau , 07– 09.viii.1985 ( USNM: USNMENT00755101). This species was described by Crawley (1923) from a single worker specimen, but the type material is missing. In the interest of nomenclatural stability a neotype is designated. The neotype is from the original type locality.

Worker diagnosis. Small in overall size (TL: 2.42–2.64mm; Fig 20 View FIGURES 15 – 27 ); obtusely angled propodeum with flat dorsal and posterior faces; petiole low in profile and elongate with a prominent anteroventral process ( Fig 54 View FIGURES 51 – 56 ).

Most similar species. P. darlena , P. fustinoda , P. jerdoni , P. subopaca

Morphology. Worker. Measurements (n=2): CMC: 10–14; EL: 0.21; EW: 0.17; HL: 0.61–0.66; HLA: 0.32– 0.34; HLP: 0.19; HW: 0.57–0.58; IOD: 0.44; LF1: 0.17; LF2: 0.11; LHT: 0.83–0.84; MMC: 2; MTW: 0.35–0.37; MW: 0.22; PDH: 0.26–0.27; PMC: 1–3; PrCL: 0.38–0.40; PrCW: 0.21; PrFL: 0.68–0.70; PrFW: 0.15–0.16; PTH: 0.21; PTL: 0.37–0.41; PTW: 0.19–0.22; PW: 0.43–0.44; SL: 0.86–0.92; TL: 2.42–2.64; WF1: 0.06; WF2: 0.05; WL: 0.88–0.89; BLI: 172–175; CI: 87–94; EPI: 172–175; FLI: 153; HTI: 145; PetHI: 79–81; PetWI: 53; PrCI: 52– 55; PrFI: 22; REL: 32–35; REL2: 37; REL3: 48–49; SI: 150–159.

Light to medium brown; cuticle of head, pronotum, mesopleuron, and gaster smooth and shiny; cuticle between metanotal spiracles rugoreticulate; very long, erect macrosetae on head and gaster; abundant decumbent setae on scapes and legs; sparse erect macrosetae on mesosoma; no erect macrosetae on the propodeum; head about as broad as long or slightly longer than broad and oval in shape with indistinct posterolateral corners and a convex posterior margin; compound eyes moderately large and convex, barely surpassing the lateral margins of the head in full-face view; torulae do not touch the posterior border of the clypeus; clypeus strongly medially convex and without prominent anterolateral lobes ( Fig 43 View FIGURES 38 – 50 ); mandibles with 6 teeth on the masticatory margin; ectal surface of mandibles smooth and shiny; in profile view, propodeum is obtusely angled with a flat dorsal face ( Fig 20 View FIGURES 15 – 27 ); petiole is narrow and elongate (PetWI <55) with a prominent anteroventral process ( Fig 54 View FIGURES 51 – 56 ); scale of petiole is low in profile with a rounded dorsal apex of the scale.

Notes. This species has a narrow and elongate petiole (PetWI <55) like P. darlena , P. fustinoda , P. jerdoni , and P. subopaca . In P. jacobsoni the petiole is distinct in that there is a prominent anteroventral process present and the scale has a unique shape ( Fig 54 View FIGURES 51 – 56 ). Prenolepis jacobsoni can also be distinguished by its smaller size, lighter color, and overall smooth cuticle.

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Prenolepis

Loc

Prenolepis jacobsoni Crawley, 1923

Williams, Jason L. 2016
2016
Loc

Prenolepis jacobsoni

Crawley 1923: 30
1923
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