Thraulus (Thraulus) granti, Sartori & Salles, 2025
publication ID |
https://doi.org/10.3897/zookeys.1245.141723 |
publication LSID |
lsid:zoobank.org:pub:7160C34D-C437-4469-9A47-91AB5B9DFB05 |
DOI |
https://doi.org/10.5281/zenodo.15923117 |
persistent identifier |
https://treatment.plazi.org/id/4C6BE539-23B6-5C4F-9C1A-7BAB34A52F25 |
treatment provided by |
|
scientific name |
Thraulus (Thraulus) granti |
status |
sp. nov. |
Thraulus (Thraulus) granti sp. nov.
Figs 2 B View Figure 2 , 5 View Figure 5 , 6 View Figure 6
Material examined.
Holotype. • Papua New Guinea, nymph on slide, Enga Province, Kumul Lodge at foot of Mt Hagen , 2700 m, 05.XII.2006, 05°47.548'S, 143°58.761'E, M. Balke and Kinibel col [PNG 124], GBIFCH 01223092 ( ZSM) GoogleMaps . Paratypes. 4 nymphs in ethanol, GBIFCH 01523472 , 1 nymph entirely mounted on slide, GBIFCH 01223093 , same data as holotype ( MZL) GoogleMaps . • Papua New Guinea, one nymph on slide, GBIFCH 01223094 , Central Province, Kokoda trek , 1390 m, I.2006, 09°00.338'S, 147°44.252'E, Posman col. [PNG 173] ( MZL) GoogleMaps .
Nymph.
Body length, female: 10.5–11 mm.
Diagnosis.
Labrum cordiform, medial emargination shallow with flat denticles; dorsal face of labrum with a simple row in distal position; median part of labrum in ventral view with stout setae in row; apical ventral row of maxilla composed of 19–23 pectinate setae; tarsal claw with 7–10 teeth; gill lamellae on segments II – VI with> 25 filaments each; posterolateral projections of the abdomen present on segments VII – IX.
Colouration.
Head. Pale brown, medium brown between ocelli. Antenna broken. Mouth parts pale brown. Thorax. Pronotum yellowish brown, washed with greyish maculae laterally and medially as in Fig. 2 B View Figure 2 . Mesonotum greyish brown with scattered lighter maculae; anterolateral base of forewing pads with a blackish dot. Femur yellowish with distal 1 / 3 greyish; forefemur also with a middle greyish band. Tibia yellowish, apex of fore tibia greyish. Tarsi yellowish. Abdomen. Terga evenly greyish brown with a pair of lighter maculae on segments II – VII; segments VIII and IX darker, segment X lighter. Sterna yellowish grey in the middle, yellowish on sides, segments VIII and IX darker, brownish. Gills greyish brown, upper lamella darker. Terminal filaments uniformly yellowish.
Description.
Head. Labrum cordiform (Fig. 5 A View Figure 5 ). Ratio labrum width / clypeus width 0.90–0.95. Ratio labrum width / insertion width 1.23–1.24. Medial emargination shallow with flat denticles. Proximal row of setae present, simple. Number of setae on proximal row ~ 26–40. Distal row of setae present, simple. Median part of labrum in ventral view with stout setae in row (Fig. 5 B View Figure 5 ). Mandibles. Outer margin with row of setae on distal 2 / 3. Ending of the row near incisor. Right mandible with 10–17 setae below the mola (Fig. 5 C View Figure 5 ). Maxillae. Posterior margin of cardo with few hair-like setae and three or four stout and long setae in submarginal position. Proximo-lateral margin of stipes with a single long and stout seta. Apical-ventral row with 19–23 pectinate setae. Maxillary palp segment II 0.89–1.00 as long as segment I. Maxillary palp segment III 0.67–0.80 as long as segment I (Fig. 5 D View Figure 5 ). Stout setae on outer margin of segment I absent. Segment II inner margin with 3–7 stout setae, outer margin with 3–5 stout setae. Segment III inner margin with four or five stout setae, dorsal surface with few setae at apex, 1.60–2.10 × as long as base width. Labium. Labial palp segment II 0.69–0.74 as long as segment I. Labial palp segment III 0.96–0.86 as long as segment I (Fig. 5 E View Figure 5 ). Segment I inner margin with 9–15 stout setae, outer margin with 15–20 stout setae. Segment II outer margin with two to four stout setae. Segment III dorsal face with five or six setae, 3.00–3.38 × as long as base width. Hypopharynx. Apex of superlingua truncate (Fig. 5 F View Figure 5 ).
Thorax. Dorsal margin of femur with a row of long, stout, pointed setae; irregular submarginal row with setae as long as or half the size of those of dorsal margin (Fig. 6 A View Figure 6 ); ventral margin with shorter, stout setae and a submarginal row of long and pointed stout setae, except on hind leg where those on ventral margin are short and blunt (Fig. 6 B View Figure 6 ); central area of upper surface with few long, pointed setae somewhat arranged in a longitudinal row. Fore tibia with several rows of numerous simple, feathered setae on ventral margin; outer margin of fore tibia with few hair-like setae; middle tibia with two rows of long, pointed setae on ventral margin, outer margin with numerous hair-like setae; hind tibia with a row of long thin setae on ventral margin, upper and lower surface covered with simple and some feathered setae, outer margin with short and long, pointed, stout setae. Tarsal claw straight with 7–10 denticles progressively larger apically (Fig. 6 C View Figure 6 ).
Abdomen. Gill I with single bifid lamella. Gills II – VII with dorsal and ventral lamellae, dorsal lamella smaller. Gill II – VI with upper and lower lamella entirely bordered with ~ 30 short filaments (Fig. 6 F View Figure 6 ); gill VII with ~ 15 filaments and ~ 10 filaments on upper and lower lamellae, respectively (Fig. 6 G View Figure 6 ). Posterior margin of terga IX with minute denticles (Fig. 6 D View Figure 6 ), or with small denticles. Posterior margin of terga VIII with minute denticles (Fig. 6 E View Figure 6 ). Posterior margin of terga V – VII without denticles. Posterolateral projections present on segments VII – IX.
Derivatio nominis.
This species is dedicated to Prof. Peter Grant (SWOSU, Oklahoma, USA) for his outstanding contribution to the study of the genus Thraulus .
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 |
|
Genus |
|
SubGenus |
Thraulus |