Triodontus hanskii Frolov, 2010
publication ID |
https://doi.org/ 10.11646/zootaxa.4207.1.1 |
publication LSID |
lsid:zoobank.org:pub:F2875582-31E2-496F-AEEF-1D657DD86C33 |
DOI |
https://doi.org/10.5281/zenodo.6057712 |
persistent identifier |
https://treatment.plazi.org/id/5B4FBD00-FF86-613D-FF02-632CFBBFF9BF |
treatment provided by |
Plazi |
scientific name |
Triodontus hanskii Frolov, 2010 |
status |
|
Triodontus hanskii Frolov, 2010
( Figs. 45 View FIGURE 45 A–G)
Triodontus hanskii Frolov, 2010b: 1031 .
Type material examined. Holotype, male, “ MADAGASCAR Ambatotsirongorongo Feb 2005 fish baited trap Ilkka Hanski leg. / Triodontus hanskii Frolov 2010 HOLOTYPUS ” ( ZIN) .
Diagnosis. From other species with 2 medial tubercles on the pronotum and simple shape of the 6th abdominal sternite in males ( T. owas Westwood , T. itremoi Paulian , T. copridoides Paulian ), T. hanskii can be separated by having the parameres without teeth and notches laterally ( Fig. 45 View FIGURE 45 E).
Description. Male. Body length 10.1 mm. Body strongly shiny, uniformly colored ( Figs. 45 View FIGURE 45 A–B). Color of head, pronotum, and elytra dark brown; legs, antennae, and underside of the body brown.
Frontoclypeus convex anteriorly, rounded laterally, anterior margin crenulate and setose in dorsal view. Eyes relatively small (diameter slightly smaller than the distance between eye and gula in ventral view), incompletely divided by canthus into small, dorsal and large, ventral parts. Frontoclypeus with small but distinct tubercles mediad of each eye and with short horn in center of frontoclypeus.
Pronotum with 2 obtuse tubercles in the middle and with excavations aside the tubercles. Lateral margins with wide border appearing somewhat crenulate in dorsal view. Anterior margin with wide, smooth border. Posterior margin with fine border; not crenulate; punctate with small, narrow, longitudinal punctures laterally. Surface of most pronotum smooth, anterior angles with a few coarse punctures.
Scutellum rounded apically, visible part is about 1/15 length of elytra.
Elytra convex, with distinct humeral humps. Maximum width approximately at middle. Elytra with 10 feebly visible striae and with oblique line from base of 6th stria to approximately middle of 8th stria. Stria with small, indistinct punctures. Intervals with minute punctures, almost smooth. Base of elytra with an irregular row of coarse punctures each bearing small, yellow seta.
Sternite 8 medially about 3 times as short as other sternites combined, slightly sinuate apically, without tubercles or distinct concavities in the middle ( Fig. 45 View FIGURE 45 F).
Parameres with upper lobes somewhat tapering apically and sinuate on lateral margin basally ( Fig. 45 View FIGURE 45 E). Internal sac of aedeagus with a somewhat pentagonal main sclerite and smaller auxiliary sclerites ( Fig. 45 View FIGURE 45 D).
Female. Unknown.
Distribution and habitat. The species is known from a single specimen collected in Ambatotsirongorongo forest in Tolagnaro region of South Madagascar. This is the southernmost locality of Triodontus species known to date and it is also the southernmost remnant of indigenous rain forest on the island ( Fig. 45 View FIGURE 45 G). The only known specimen of T. hanskii was collected in a pitfall trap baited with fish carrion. Short trap exposure (1 day and night) suggests that the specimen was attracted to carrion rather than captured accidently.
ZIN |
Russian Academy of Sciences, Zoological Institute, Zoological Museum |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
|
SubFamily |
Orphninae |
Genus |
Triodontus hanskii Frolov, 2010
Frolov, Andrey V., Montreuil, Olivier & Akhmetova, Lilia A. 2016 |
Triodontus hanskii
Frolov 2010: 1031 |