Andersonaltica tuberosa Linzmeier & Konstantinov

Linzmeier, Adelita M. & Konstantinov, Alexander S., 2012, A new genus of leaf litter inhabiting Neotropical Monoplatina (Coleoptera: Chrysomelidae: Galerucinae: Alticini), Zootaxa 3260, pp. 19-32 : 29

Andersonaltica tuberosa Linzmeier & Konstantinov , new species

( Figs 33–37 , Map 1)

Description. Body ( Figs 33, 34 ) length 1.76 mm, width 1.07 mm. General body color light chestnut brown. Dorsal part of head and pronotum entirely light chestnut brown. Mouth parts, procoxae, last abdominal ventrite, and basal calli on elytra lighter. Pronotum slightly darker. Elytral hairs yellowish gold, lighter hairs forming two or three narrow, poorly defined bands and patches.

Head ( Fig. 35 ) with vertex with slightly zigzagged longitudinal ridge above antennal calli. Frontal ridge acute ventrally, followed by narrow longitudinal ridge beyond anterofrontal ridge into middle of clypeus. Anterofrontal ridge well developed laterally. Head surface densely covered with relatively long, well visible setae ( Fig. 35 ).

Pronotum ( Fig. 37 ) 1.36 times wider than long, nearly parallel-sided near its base. In lateral view apical part more convex than basal. Lateral margin slightly convex. Anterolateral pore present. Two elongate elevations on pronotum tall. Pronotal punctures large, spaced evenly, distance between them much smaller than diameter of puncture. Elytral punctures placed close together into striae, interspaces convex. Basal calli well developed, projecting. Space between scutellar row and first row of punctures as convex as space between first and second rows. Metatibia without preapical tooth situated before tarsal insertion.

Median lobe of aedeagus nearly parallel-sided ventrally, with apex narrowing gradually. Apical part with ventral groove widening gradually towards apex. In lateral view, median lobe slightly curved with base and apex bent evenly ( Fig. 36 ).

Female unknown.

Type material. Holotype, 3. Labels: 1) GUAT.[ EMALA]: Baja Verapaz/ 4.3km E.Purulha/ 1680m, 29.VI.1993 / R.Anderson, cloud/ for.litter, 93-25B; 2) Holotype Andersonaltica tuberosa des. Linzmeier & Konstantinov 2011 ( CMNC).

Etymology. The specific name derived from the Latin tuberosus, referring to the elytra bearing bumps.

Remarks. Andersonaltica tuberosa is more similar to A. valens than to other species of the genus. It can be separated from A. valens by the following characters: pronotum near its base nearly parallel-sided; space between scutellar row and first row of punctures as convex as space between first and second rows; median lobe of aedeagus with ventral groove widening gradually towards apex.

Figures

FIGURES 33 – 37. Andersonaltica tuberosa. 33, habitus, dorsal view. 34, habitus, lateral view. 35, head. 36, median lobe of aedeagus, ventral and lateral views. 37, pronotum.