Euops kurulu, Riedel, 2001

Riedel, Alexander, 2001, The pygmaeus-group of Euops Schoenherr (Coleoptera, Curculionoidea, Attelabidae), weevils associated with Nothofagus in New Guinea, Journal of Natural History 35 (8), pp. 1173-1237 : 1227-1229

Euops kurulu sp. n.

(®gures 21, 22, 27, 30, 82, 83, 106, 122, 140, 152, 153, 172, 197, 198, 210, 221, 224)

Diagnosis. Disc of elytron and legs testaceous to ferruginous; vertex and pronotum with greenish-bronze shine not completely concealing the underlying ferruginous colouration. Female: Abdominal sternite VI with simple row of modi®ed setae. Sternite VIII as in ®gure 221, without apodeme. Spermatheca rather slender, as in ®gure 210. Male: Uncus of metatibia with accessory tooth. TA as in ®gures 152±153, with transfer tubes not projecting over its apical margin.

Range. Figure 224. Jayawijaya Prov. (Baliem Valley, Nalca). Altitude: 1900±2100 m.

Type material. HOLOTYPE: Irian Jaya : Jayawijaya Prov. , Jiwika, trail to Wandanku, 1900±2150 m, 28± 29 September 1996, leg. A. Riedel ( ARC) . PARATYPES: nine males, ®ve females, same data as holotype ( ARC) ; one male, Jiwika , trail to Wandanku, c. 1700±2300 m, 6 September 1990, leg. A. Riedel ( ARC) ; two males, Diuremna (E Nalca), 1900±2100 m, 9± 11 September 1992, leg. A. Riedel ( ARC) , one female (marked as`allotype’), Jiwika , 1750 ±2100 m, 5 August 1994, leg. A. Riedel ( ARC) .

Description

Holotype, male. Length, pronotum 1 elytron: 2.22 mm. Colouration. Disc of elytron, legs testaceous; vertex, pronotum, metapleura greenish-bronze; remainder reddish-brown. Head. As in ®gure 82; short, with gena 0.76 Ö as long as width of head behind eyes; contours of genae in dorsal view parallel; vertex shining, densely punctate with deep punctures, punctures partly transversely conūent; eyes evenly rounded, dorsally distant, separated by c. 0.35 Ö basal width of rostrum; frons (®gures 21, 22) smooth except row of punctures along mesal margin of eye, anteriorly with median longitudinal impression, centre with smooth median costa extending posteriad; ventrally in front of gular region shining, sparsely punctate, without median furrow, anteriorly with short median submental carina. Rostrum 1.51 Ö as long as mouthparts, at widest point 1.52 Ö wider than at base; clypeus with median process apically deeply incised; antennal insertion at base, approximately within basal ®fth of rostrum; in lateral aspect with dorsal contour above antennal insertion weakly rounded, then in straight line to apex; ventral contour at base continuous with contour of head, weakly concave to apex; dorsal and ventral contour converging from base to apex; ventral surface with submentum before hind level of maxillary cavities ¯at, posteriorly towards sides steeply rising to postgenal recesses, margins of ¯at median area converging basad, continued by median submental carina. Antenna as in ®gure 106. Prothorax. Sides weakly rounded, subparallel; without preapical constriction; disc shining, with deep transverse anastomosing wrinkles Elytron. At humerus simple; 2.72 Ö longer than wide; striae moderately deeply impressed. Thoracic venter. Prepectus approximately as long as postpectus. Height of pterothorax 0.66 Ö length of elytron. Legs. Procoxa arteriorly simple. Profemur ventrally at middle with very weak, short, longitudinal carina. Protibia (®gure 122) with dorsal contour weakly curved, ventral contour subparallel, weakly sinuate; ventral surface anteriorly weakly granulate, posteriorly with sparse denticles, densely setose. Mesotibia with dorsal edge subapically simple, without extension. Uncus of metatibia curved ventrad, at base with posteriad directed accessory tooth. Abdomen. Ventral contour in lateral view weakly concave; venter sparsely setose; sternite VII with apex evenly concave; pygidium c. 1.35 Ö wider than long, shining, densely deeply punctate, setose, base laterally overlapped by elytral apex. Genitalia. Sternite VIII (®gure 172) with apex concave, apically sparsely setose with short setae, subapically with pair of less sclerotized areas. Tegminal plate (®gure 198) with sides diverging before apex; apex subtruncate, weakly rounded, evenly setose. Aedeagus as in ®gure 140. Apical scoop of pedon (®gure 197) with lateral margins straight and converging, with apex subacute. TA as in ®gure 152.

Allotype, female. Same as holotype except: Length, pronotum1 elytron: 2.25 mm. Head. As in ®gure 83; eyes separated by c. 0.50 Ö basal width of rostrum. Rostrum. Apically more strongly compressed dorsoventrally; in lateral view with dorsal contour sinuate, shortly in front of antennal insertion concave, in straight line continued to apex. Elytron 2.54 Ö longer than wide. Thoracic venter. Height of pterothorax 0.72 Ö length of elytron. Legs. Protibia in anterior view with dorsal contour weakly curved, ventral contour weakly sinuate, convex at base, concave at apex; apex of pro-, meso- and metatibia with uncus and premucro; uncus of metatibia without accessory tooth. Abdomen. Patch of modi®ed setae c. 0.81 Ö as long as wide; sternite VI with simple row of modi®ed setae. Genitalia. Sternite VIII as in ®gure 221, without apodeme. Spermatheca (®gure 210) slender; with membranous spermathecal gland.

Intraspeci W c variation. Length, pronotum1 elytron: 2.06±2.38 mm (n 5 16, xÅ 5 2.21 Ô 0.09). Colouration. Apical third of elytron diOEusely greyish, or deep reddishbrown reaching further basad on intervals 2±4. Elytron. 2.53± 2.73 Ö longer than wide (n 5 16, xÅ 5 2.64 Ô 0.06). Thoracic venter. Height of pterothorax in males 0.64± 0.68 Ö length of elytron (n 5 10, xÅ 5 0.66 Ô 0.01), in females 0.68± 0.72 Ö length of elytron (n 5 5, xÅ 5 0.70 Ô 0.01). Abdomen. Female patch of modi®ed setae c.0.77± 0.88 Ö as long as wide (n 5 6, xÅ 5 0.83 Ô 0.05). Males from Diuremna (Nalca area) have the well-sclerotized parts of the TA-frame more acute at base and apex (®gure 153) .

Etymological note

This epithet is a noun in apposition. Kurulu, who lived near Jiwika, was a famous Dani leader in the 1960s. The district around Jiwika bears his name today.

The species’ name refers both to the type locality and is a reference to the disappearing culture of the indigenous people of this area.

Biological note

The specimens collected in Jiwika were found on fresh leaves of N. starkenborghi or a similar species of Nothofagus .