Brandão, Diniz, Agosti & Delabie, 1999
A brief habitat remark - shrub litter - from the type label is all that is known about the biology of Leptanilloides improvisa.
A member of the Leptanilloides biconstricta species-group.
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Distribution based on Regional Taxon Lists
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- improvisa. Leptanilloides improvisa Brandão, Diniz, Agosti & Delabie, 1999: 28, figs. 3, 4, 16, 22 (w.) ECUADOR.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Holotype (MCZ) (in mm): HL 0.50, HW 0.38, SL 0.26, WL 0.68, CI 76, SI 68, SRI.
The postpetiole nearly as high dorsoventrally than the first fourth abdominal segment. The coarser head sculpture and mandibular teeth, better developed in relation to the other species in the genus, distinguishes L. improvisa from all other Leptanilloides.
Other relevant characters include: head with convex sides in full-face view, head sculpture with up to 20 deep foveolae covering a straight transverse line at head midlength; inner margins of the frontal carinae are separated from each other; flange over the metapleural gland opening rounded, and it does not surpass the lateral propodeum profile.
Holotype worker deposited at Museum of Comparative Zoology. Ecuador, Volca´n Cotopaxi, NNE Latacunga, Paramo Moss, shrub litter, 3350 m, 23.vi.1975, B-305, leg. S. & J. Peck.
Improvisa, a noun in apposition, meaning unexpected in Latin, referring to the fact that this manuscript was almost ready when we found this unique specimen among other samples of Leptanilloides.
Brandão, C. R. F.; Diniz, J. L. M.; Agosti, D.; Delabie, J. H. 1999. Revision of the Neotropical ant subfamily Leptanilloidinae. Systematic Entomology 24:17-36. (page 28, figs. 3,4, 16, 22 worker described)