Auxentius nigriculus, Published, 2007
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publication ID |
https://doi.org/ 10.11646/zootaxa.1539.1.1 |
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publication LSID |
lsid:zoobank.org:pub:96A2269C-3D7C-498F-914E-0446D52F9988 |
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persistent identifier |
https://treatment.plazi.org/id/03CA8F0F-9176-775D-FF1D-79BFD9FFFDF6 |
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treatment provided by |
Felipe |
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scientific name |
Auxentius nigriculus |
| status |
sp. nov. |
Auxentius nigriculus sp. nov.
( Figs. 6C View FIGURE 6 , 8G–I View FIGURE 8 , 10C View FIGURE 10 , 11 View FIGURE 11 )
Holotype. Male. INDONESIA: Irian Jaya, Wisselmeren: Waghete, Tigi L., elev. 1700 m, [4° 3' S, 136° 11’ E], 17 August 1955, coll. J.L. Gressitt - 1 ♂. Deposited in Bernice P. Bishop Museum. GoogleMaps
Diagnosis. Recognized by predominately black coloration of body; weakly developed lateral angles of pronotum; stout dorsal lobes of pygophore ( Fig. 8G View FIGURE 8 ) and protruding bilobed process of inner ventral rim of pygophore ( Fig. 8G View FIGURE 8 ).
Description. Body 2X longer than broad ( Fig. 6C View FIGURE 6 ). Head slightly broader across eyes than long. Antennal segment I surpassing apex of head. Posterior margins of compound eyes convergent towards midline. Pronotum with gibbosities of callus areas obscure, low; anterolateral margins distinctly denticulate; lateral angles subspinose. Scutellum with apex angulate, dorsally reflexed weakly. Posterior angle of laterotergites produced as small lobe.
Anterior angle of bucculae acute, angled ventrally. Labium reaching abdominal fifth sternite (fourth visible); ratios 1:1.9:1.6:1.1. Peritreme 2/5 as long as distance from ostiole of metathoracic scent gland to lateral margin of metapleuron. Episternal ridge located 4/5 of distance between ostiole of metathoracic scent gland and lateral margin of metapleuron. Profemora armed with ventral row of 3–4 small distal tubercles.
Color and vestiture. Ground color straminous to castaneous with piceous punctures. Antennal segments I– II testaceous; distal 3/4 of segments III–V testaceous. Pronotum posterior margin castaneous with five piceous triangular markings. Scutellum with castaneous marking on each side of anterior bulge and medially on tongue. Corium of mottled castaneous and testaceous patches. Femora mostly castaneous, spines/tubercles castaneous; distal 1/3 of tibiae castaneous. Lateral and medial portions of abdomen with castaneous bands.
Male. Pygophore with median narrow ventral process interior to outer ventral rim; process broad, deeply emarginate medially; lateral lobes of dorsal rim long but stout, slightly swollen distally, slightly angled ventrally ( Fig. 8G–I View FIGURE 8 ). Proctiger hemispherical, broadly sulcate medially; basal sclerite subquadrate, posterior margin slightly concave ( Fig. 8I View FIGURE 8 ).
Female. Eighth gonocoxa small, apically rounded. Ninth laterotergites longer than broad, distally obtuse ( Fig. 10C View FIGURE 10 ).
Measurements. Male (n=1): body length 14.9, anterior pronotal width 3.4, humeral width 7.4, scutellar length 5.5, medial length of sixth sternite (fifth visible) 0.9, medial length of seventh sternite (sixth visible) 2.6. Female (n=1): body length 16.3, anterior pronotal width 3.5, humeral width 7.9, scutellar length 6.3, medial length of sixth sternite (fifth visible) 1.0, medial length of seventh sternite (sixth visible) 2.7. Appendages in Table 2.
Etymology. From the Latin word nigriculus — blackish; reflecting the species’ predominately black body.
Comments. This species, although very similar to A. vulgaris in many respects, is the only species in the genus whose males lack a swollen pronotum.
Paratype. INDONESIA: Irian Jaya, Wisselmeren: Waghete , Tigi L., elev. 1700 m, [4° 3' S, 136° 11’ E], 17 August 1955, coll. J.L. Gressitt - 1 ♀ ( BPBM) GoogleMaps .
Distribution. Mid-elevational ranges of western Irian Jaya ( Fig. 11 View FIGURE 11 ).
| BPBM |
Bishop 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.