Eucinetus tasmaniae, Lawrence, 2019

Lawrence, John F., 2019, New species of Eucinetus and Noteucinetus from Australia (Coleoptera: Scirtoidea: Eucinetidae), Zootaxa 4668 (2), pp. 151-182 : 165-167

publication ID

https://doi.org/ 10.11646/zootaxa.4668.2.1

publication LSID

lsid:zoobank.org:pub:DDEB92E2-3F1B-463F-B68C-4C3E282279FF

persistent identifier

https://treatment.plazi.org/id/E52C87D7-3D35-FF89-FF74-4F712F86FF15

treatment provided by

Plazi (2019-09-16 10:35:56, last updated 2024-11-26 08:02:43)

scientific name

Eucinetus tasmaniae
status

sp. nov.

Eucinetus tasmaniae sp. nov.

( Figs 26–27 View FIGURES 24–33 , 50 View FIGURES 34–51 , 64 View FIGURES 52–72 , 88 View FIGURES 73–88 , 136 View FIGURES 133–148 )

Diagnosis. This species differs from E. lorien , E. nebulosus , E. similis and E. tropicus in having a short, broad metanepisternum and sharply acute scutellar shield and in lacking a notched inner eye margin and hind wings. It differs from E. bicolor , E. bicolorellus , E. limitaris and E. protibialis in that all surfaces are yellowish-brown to red- dish-brown, without the contrasting red pronotum and black elytra. It differs from E. dorrigo in having the apical antennomere much shorter and broader, less than 1.4 times as long as wide, the apical maxillary palpomere gradually narrowed apically with its aciculate tip centrally located, parameres not outwardly bowed and length usually greater than 2.00 mm, and from E. brindabellae in having the apical antennomere less than 1.5 times as long as wide, the third antennomere equal in length to the fourth, the sides of the elytra less strongly curved, the upper surfaces very slightly curved in lateral view and the colour mainly yellowish-brown with legs and antennae yellow.

Description Length 1.80–2.30 (2.06 ± 0.18, n = 10) mm; body 1.79–1.97 (1.85) times as long as combined elytral width; greatest depth 0.59–0.69 (0.64) times elytral width. Colour of dorsal and ventral surfaces primarily yellowish-brown; legs and antennae yellow. Head 0.96 times as long as wide; distance across eyes 1.49 times distance between them; inner edge of eye without notch. Labrum 0.50 times as long as wide; sides weakly converging; apex slightly emarginate. Antenna about 1.7 times as long as head width behind eyes; 3rd antennomere equal in length to 4th; 11th antennomere 1.33 times as long as 10th, 1.90 times as long as wide, with apex broadly rounded. Mandibular mola reduced. Galea about as wide as lacinia and not widened at apex. Apical maxillary palpomere subulate, 2.00 times as long as wide, with very short aciculate tip. Apical labial palpomere subulate, 2.25 times as long as wide, widest at middle, with long aciculate tip. Pronotum 0.40–0.48 (0.45) times as long as wide; prosternal process narrowly rounded at apex. Scutellar shield 0.23 times as wide as pronotum, 0.8 times as long as wide, acute at apex. Elytra 1.43–1.58 (1.49) times as long as combined width and 3.78–4.45 (4.11) times as long as pronotum; elytral punctation and vestiture as in Fig. 88 View FIGURES 73–88 . Hind wings absent. Metanepisternum 0.73 times as long as mesepimeron, about 1.22 times as long as wide, subtriangular with moderately straight anterior and inner edges and curved outer edge. Metacoxal plate with outer edge about 3.5 times as long as posterior edge, which is weakly biemarginate. Outer (acute) mesotibial spur in male 0.57 times as long as first mesotarsomere; inner spur 0.83 times as long as outer spur, parallel-sided with a blunt, cleft apex. Meso- and metapretarsal claws simple and without accessory lobes. Parameres at about middle 1.5 times as wide as penis at same point; inner edge of each straight almost to apex, outer edge straight to subapex, then distinctly curved to narrowly rounded apex. Penis gradually narrowing to subapex, then abruptly narrowed to subacute apex.

Types: Holotype, ♁: “ 41.11S 140.00E TAS, Mt. Michael , 740m, 26 Nov. 1989, pyrethrin knockdown, tree 1, Tube 187, R. Coy coll. / ANIC Image” ( ANIC type #25-067880). GoogleMaps

Paratypes. TAS: Cranbrook, 15 km ENE (41°57’S, 148°14’E), 28.i.1983, ANIC Berlesate 796, leaf litter, I. D. Naumann, J. C. Cardale (2, ANIC); Florentine Vy., 29.2 km WNW Maydena on Eleven Rd., 460m, 1, 6.ii.2980, berlesed from leaf litter, A. Newton, M. Thayer (1, ANIC); Lake Chisholm For. Reserve (41°08’S, 145°04’E), 180m, Euc. obliqua forest, 909, 12–29.i.1993, FMHD #93-28, ex window trap, A. Newton, M. Thayer (1, ANIC); Low- er Gordon River, Southwest Tasmania, 1977–1978, H.E.C. Survey, Howard, Hill (8, ANIC); Mt. Field (42°41’S, 146°37’E), 980m, suction, R. Coy (1, ANIC); Mt. Field N. P., nr. SE end Lake Fenton, 1000m, Nothofagus gunnii , Richea spp., Arthrotaxis asplen . forest, 30.i–5.ii.1980, carrion trap (fish), A. Newton, M. Thayer (2, ANIC, FMNH); Mt. Field N. P., nr. Lake Fenton, 100m, Nothofagus gunnii , Arthrotaxis selaginoides , 31.i.1980, ANIC Berlesate 667, litter, J. Lawrence, T. Weir (1, ANIC); Mt. Field N. P., Lake Dobson Rd., 710m, Nothof.-Euc. for., 30.i–5.ii.1980, Berlese forest litter, A. Newton, M. Thayer (1, ANIC); Mt. Michael (41°11S, 148°00’E), 740m, 26.xi. 199, pyrethrin knockdown, tree 1, Tube 187, R. Coy (1, ANIC); Mt. Ossa, 2 km NebyN (41°52’S, 146°03’E), 1000m, closed forest, 30.xi.1990 – 8.i.1991, ANIC Berlesate 1146, litter E. Nielsen, T. Edwards (6, ANIC); Mt. Victoria (41°20’S, 147°50’E), 900m, 23, 25.xi.1989, pyrethrum knockdown, R. Coy, H. Mitchell (4, ANIC); Mt. Victoria (41°20’S, 147°50’E), 900m, 22–28.xi.1989, yellow pans, R. Coy, H. Mitchell (1, ANIC); Mt. Wellington, above chalet, 1000m, 31.xii.1978, L. Hill (1, ANIC); Rufus Canal 13.5 km WNW Derwent Bridge, 800m, Nothofagus rainforest, 26–28.i.1980, pitfall trap 563, A. Newton, M. Thayer (1, ANIC); Savage R. Pipeline Rd. (41°30’S, 145°20’E), 21.iv.1989, leaf litter, J. Diggle, H. Mitchell (1, ANIC); Saxon’s Rd. (41°18’S, 145°36’E), 17.i.1983, ANIC Berlesate 786, rainforest litter, I. D. Naumann, J. C. Cardale (1, ANIC); Schulhofs Road, 8.7 km NE Upper Blessington (41°26’S, 147°36’E), 870m, 914, Euc. delacatensis, Euc. obliqua forest, 16.i–1.ii.1993, FMHD #93- 43, ex window trap, A. Newton, M. Thayer (1, ANIC); St. Columba Falls, 315m, 12–14.ii.1980, berlesed from leaf litter, A. Newton, M. Thayer (2, ANIC, FMNH); Truchanas Huon Pine Res. (42°39.5’S, 145°58’E), 19.iii.1976, Dacrydium litter, C. Howard (1, ANIC); Waldheim, Cradle Mtn., 12–14.ii.1967, G. B. Monteith (1, QMB); Weldborough, near (41°09’50”S, 147°53’51”E), Nothofagus forest, 22–27.v.1993, J. Trueman et al. (1, ANIC); Weldborough, 4.4 km SE, 460m, 12–14.ii.1980, Nothofagus forest, A. Newton, M. Thayer (1, ANIC).

Distribution. Known only from TAS.

Biology. Specimens collected primarily in Berlese samples from leaf litter, but some were taken in flight intercept window/trough traps, pitfall traps, yellow pans and by pyrethrin fogging.

Etymology. Derived from the name of the island of Tasmania.

Gallery Image

FIGURES 24–33. Habitus: 24, E. nebulosus sp. nov., sex? (2.30 mm): dorsal; 25, same, lateral; 26, E. tasmaniae sp. nov., male (2.00 mm): dorsal; 27, same, lateral; 28, E. tropicus sp. nov., female (2.10 mm): dorsal; 29, same, lateral; 30, Noteucinetus ornatus sp. nov., male (1.4 mm), dorsal; 31, same, lateral; 32, N. victoriae sp. nov., male (1.6 mm), dorsal; 33, same, lateral.

Gallery Image

FIGURES 34–51. Morphological details: 34–35, right side of head, dorsal: 34, Eucinetus nebulosus sp. nov., showing eye notch; 35. E. bicolor sp. nov., with lack of eye notch; 36, E. lorien sp. nov., antennomeres 1–6; 37, Noteucinetus victoriae sp. nov., antennomeres 5–11; 38, same, antennomeres 10–11; 39–51, Eucinetus spp., antennomere 11: 39, E. bicolorellus sp. nov.; 40, E. bicolor sp. nov.; 41, E. brindabellae sp. nov.; 42, E. dorrigo sp. nov.; 43, E. limitaris sp. nov.; 44, E. protibialis sp. nov.; 45, E. nebulosus sp. nov.; 46, E. minutus sp. nov.; 47, E. lorien sp. nov. (NSW); 48, E. lorien sp. nov. (northern QLD); 49, E. similis sp. nov.; 50, E. tasmaniae sp. nov.; 51, E. tropicus sp. nov.

Gallery Image

FIGURES 52–72. Morphological details: 52–66, apical maxillary palpomere: 52, Eucinetus bicolor sp. nov.; 53, E. bicolorellus sp. nov.; 54, E. brindabellae sp. nov.; 55, E. dorrigo sp. nov.; 56, E. limitaris sp. nov.; 57, E.ucinetus lorien sp. nov. (northern QLD); 58, E. lorien sp. nov. (NSW); 59, E. minutus sp. nov.; 60, Noteucinetus ornatus sp. nov.; 61, E. protibialis sp. nov.; 62, E. nebulosus sp. nov.; 63, E. similis sp. nov.; 64, E. tasmaniae sp. nov.; 65, E. tropicus sp. nov.; 66, Noteucinetus victoriae sp. nov.; 67–69, apical labial palpomere: 67, E. brindabellae sp. nov.; 68, N. ornatus sp. nov.; 69, N. victoriae sp. nov.; 70–72, maxilla: 70, E. dorrigo sp. nov.; 71, E. lorien sp. nov.; 72, E. protibialis sp. nov.

Gallery Image

FIGURES 73–88. Morphological details: 73–75, mentum and prementum: 73, E. lorien sp. nov. (northern QLD); 74, E. bicolor sp. nov.; 75, E. protibialis sp. nov.; 76, E. brindabellae sp. nov., elytral interlocking device; 77–88, Eucinetus spp., portion of elytral surface (100×): 77, E. bicolor sp. nov.; 78, E. bicolorellus sp. nov.; 79, E. brindabellae sp. nov.; 80, E. dorrigo sp. nov.; 81, E. limitaris sp. nov.; 82, E. lorien sp. nov. (NSW); 83, E. minutus sp. nov.; 84, E. nebulosus sp. nov.; 85, E. tropicus sp. nov.; 86, E. protibialis sp. nov.; 87, E. similis sp. nov.; 88, E. tasmaniae sp. nov.

Gallery Image

FIGURES 133–148. Morphological details: 133–140, aedeagal apex: 133, Eucinetus lorien sp. nov. (NSW); 134, E. similis sp. nov.; 135, E. tropicus sp. nov.; 136, E. tasmaniae sp. nov.; 137, E. protibialis sp. nov.; 138, E. minutus sp. nov.; 139, E. nebulosus sp. nov.; 140, Noteucinetus victoriae sp. nov.; 141, N. victoriae sp. nov., left parameral apex; 142, N. ornatus sp. nov., apices of parameres and penis; 143–147, E. dorrigo sp. nov., aedeagus: 143, parameral apices; 144, parameral bases; 145, penile apex, dorsal; 146, penile base, dorsal; 147, penile base, lateral; 148, N. ornatus sp. nov., aedeagal phallobase and parameral bases.

ANIC

Australian National Insect Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

SuperFamily

Scirtoidea

Family

Eucinetidae

Genus

Eucinetus