Froggattella latispina

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Froggattella latispina
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Genus: Froggattella
Species: F. latispina
Binomial name
Froggattella latispina
Wheeler, W.M., 1936

Essentially nothing is known concerning the biology of this rare species. It has been collected just a few times from arid areas in southern Australia.

Identification

Sculpturing on the upper surface of the head smooth or very weakly leather-like posteriorly (above the level of the eyes) and very finely striate anteriorly (especially between the frontal carinae) so that there is a noticeable difference in the development of the sculpturing between the anterior and posterior regions; rugae on mesopleuron are weakly developed and are interrupted by the underlying punctations so that individual rugae are not straight; posterior region of the propodeal spines in dorsal view with their outer surfaces flat or convex.

Identification Keys including this Taxon

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • latispina. Froggattella latispina Wheeler, W.M. 1936a: 10 (w.) AUSTRALIA. See also: Shattuck, 1996b: 47.

Type Material

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Shattuck (1996) - Measurements Worker (n = 5) - CI 0.86-0.92; EL 0.15-0.16; EW 0.08-0.11; HL 0.65-0.73; HTL 0.40-0.46; HW 0.56-0.67; ML 0.26-0.29; PnL 0.36-0.46; PpL 0.25-0.32; SI 0.67-0.77; SL 0.41-0.47.

Worker

Length, 2.2-2.5 mm.

Smaller than any of the subspecies of kirbyi and differing in the shape of the head and epinotal spines, in sculpture, etc. Head longer in proportion to its width, narrowed posteriorly so that the sides behind the eyes are less convex and more nearly parallel, the posterior border nearly straight; antennal scapes very short, not reaching the posterior border of the head by fully twice their greatest diameter; funicular joints 3-10 distinctly shorter than in the various forms of kirbyi, not longer than broad. Eyes slightly more convex. Pronotum less convex, broader than long without the neck; promesonotal suture more deeply impressed; mesonotum shorter, scarcely one and one-fourth times as long as broad; metanotal spiracles less projecting dorsally; mesoepinotal impression somewhat deeper and more abrupt than in the subsp. bispinosa; epinotum somewhat longer than broad, the base convex, rising abruptly from the mesoepinotal impression and terminating behind in two very broad, thick spines only slightly longer than the width of their bases from which they taper rapidly to very blunt tips. They are not curved inward and their mesial borders when seen from above form a perfect" semicircle with the median posterior border of the base included between them. The epinotal spiracles are borne on the sides of the spines near their tips. Epinotal declivity much shorter and much more deeply concave in profile than in any of the forms of kirbyi. Petiole distinctly shorter but the node shaped as in the subsp. bispinosa with its superior border feebly convex when seen from behind.

Microscopic reticulation of the body and appendages much more pronounced than in any of the other forms of kirbyi, especially on the head, meso- and epinotum. On the front the reticulation becomes longitudinal so that the surface has a finely granulated-striolate appearance. On the meso- and epinotum it is even coarser and the sharp longitudinal rugae of kirbyi are reduced to fine granular rugules except on the mesoepinotal impression which is traversed by the usual sharp rugae or costae. Pronotum, epinotal declivity and petiolar node much smoother and more shining than the head; costae on the posterior peduncle of the petiole well developed.

Erect hairs white and distributed much as in kirbyi and its subspecies but distinctly shorter on the body and decidedly less numerous on the legs.

Head yellowish red; coxae, thorax and petiole slightly paler; mandibles and antennae yellow; last joint of funiculi fuscous; femora and tibiae brown; gaster brown-black.

References