Physodactylus latithorax, Rosa, 2014
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publication ID |
https://doi.org/ 10.1590/0031-1049.2014.54.18 |
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persistent identifier |
https://treatment.plazi.org/id/7B52527A-2434-FFB9-764C-67FDF4EDFDCB |
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treatment provided by |
Felipe |
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scientific name |
Physodactylus latithorax |
| status |
sp. nov. |
Physodactylus latithorax sp. nov.
( Figs. 25 View FIGURE 25 , 35L View FIGURE 35 )
Etymology: From Latin, latus = wide; alluding to the thorax of this species, the widest among Physodactylus species.
Description: Integument bright ventrally, dull dorsally; head, antenna, mesoventrite, metepisternum and ventral abdomen black, pro- and mesothoracic legs dark brown with femur orange (except its apical margin dark brown), metathoracic leg as the other ones but with trochanter orange; hypomeron orange with inner margin black, prosternum orange with anterior margin and process black; pronotum and elytra brown; pilosity yellow. Total length 18.0 mm; elytral base as wide as prothorax, elytra 3.48x longer than pronotum. Frons concave, frontal carina not produced anteriorly, frontoclypeal region with a longitudinal carina medially; antenna ( Fig. 25A View FIGURE 25 ) reaching the half length of pronotum; antennomere IV 1.08x longer than wide, V 1.08x wider than long, VI-VIII 1.64x wider than long, IX-X 1.5x wider than long, XI oval 1.5x longer than wide. Maxilla with galea covered with a few fine and spiniform setae. Pronotum ( Fig. 25A View FIGURE 25 ) weakly convex 1.56x wider than long with posterior third subparallel then convergent to anterior margin; anteromedi- an margin weakly produced anteriad; posterior angles short, flat, parallel; lateral carina absent on anterior angle ( Fig. 25D View FIGURE 25 ), visible on posterior 2/3 dorsally; disc with punctures 0.5-1.5 diameters apart, larger and denser on anterior and lateral borders; prosternal process curved 90° dorsad posteriad of procoxae, without subapical tooth ( Fig. 25D View FIGURE 25 ). Protibia with dorsal margin strongly curved and crenulate ( Fig. 25F View FIGURE 25 ); lamellae of pro- and mesotarsomeres I as large as those of tarsomeres II-III, small on metatarsomere I. Elytra parallel-sided on anterior 2/3 then tapering to apex; striae deeply impressed, with three rows of punctures, punctures glabrous on the median row, smaller and bearing a small seta on the lateral row; interstices flat, smooth and glabrous; apical striae with punctures smaller than those of pronotal lateral border and as large as those of elytral base. Abdomen ( Fig. 25H View FIGURE 25 ) with ventrites 1-4 evenly strongly convex, ventrite 1 evenly and densely pilose with semi-erect setae as long as those of the lateral part of ventrite 2; ventrites 2-3 densely covered with short semi-erect setae laterally and long setae medially; ventrite 4 densely covered with long setae. Pregenitalic segments and aedeagus covered with stout yellow setae. Sternite VIII ( Fig. 25I View FIGURE 25 ) subrectangular, posterior margin nearly straight, anterior margin with three sclerotizations occupying 0.75x the total width of sternite; sternite IX tapered to apex.
Aedeagus: Phallobase 0.47x the total length of aedeagus, 1.27x longer than wide, length ratio between lateroposterior and median parts 8.71; paramere with ventral surface nearly entirely sclerotized, anteromedian part acute produced anteriad with tips strongly sclerotized and contiguous; penis with sides rounded posteriad of struts, abruptly narrowed near apex, basal strut 0.31x its total length, articulated to the parameres by a strongly sclerotized process; ventral sclerite parallel-sided.
Holotype: [ Brasil Pará, Serra Norte, N 2- Floresta , 04-XI-1985], [ Brasil Pará, P. Tadeu] male ( MPEG).
Distribution: BRAZIL. Pará: Serra Norte.
Remarks: Physodactylus latithorax is distinguished by the combination of pilosity yellow, antenna reaching the half length of pronotum, frontoclypeal region divided medially by a longitudinal carina, prothorax 1.56x wider than long, prosternal process curved 90° dorsad, lamellae of pro- and mesotarsomeres I as large as the other ones, elytra with striae deeply impressed, abdominal ventrites 2-4 strongly convex, ventrite I evenly densely covered with short and semi-erect setae; aedeagus with outer-apical angle spiniform and penis rounded posteriorly to the struts. This species is most similar to P. sulcatus and P. patens sp. nov., all sharing a convex abdomen and elytral striae, from which P. latithorax sp. nov. differs in its color pattern, larger mandible, frontoclypeal longitudinal carina, wider prothorax, longer pronotal setae, abdominal pilosity pattern and aedeagal shape.
| MPEG |
Museu Paraense Emilio Goeldi |
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.