Tylodinus intzin Luna-Cozar, 2014

Luna-Cozar, Jesús, Anderson, Robert S., Jones, Robert W. & León-Cortés, Jorge L., 2014, A taxonomic monograph of the genus Tylodinus Champion (Coleoptera: Curculionidae: Cryptorhynchinae: Tylodina) of Chiapas, Mexico, Zootaxa 3788 (1), pp. 1-63 : 53

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https://doi.org/ 10.11646/zootaxa.3788.1

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scientific name

Tylodinus intzin Luna-Cozar

sp. nov.

33. Tylodinus intzin Luna-Cozar , sp. nov.

( Figures 90–91 View FIGURES 84–91 , 126 View FIGURES 120–129 , 132 View FIGURES 132–133 )

Diagnosis. Length male 2.4–2.5 mm, female, 2.3–2.9 mm. Width male 1.3–1.4 mm, female, 1.4–1.6 mm. As for T. immundus with the following exceptions: body approximately 2.0x longer than wide. Head with scale patches on middle and lateral sides on vertex; frons concave, rostrum carinate. Pronotum in lateral view feebly convex, outline with anterior constriction, without posterior constriction ( Figure 10 View FIGURES 1–11. 1–5 , 90 View FIGURES 84–91 ); disc somewhat hollowed. Elytra sometimes with dark red coloration on intervals 1–4 on elytral declivity, surface granulate, basal margin slightly sinuate; tubercles absent on I2; with dense patch of scales on intervals 1–3 and intervals 1–5 at base of elytral declivity. Metasternum moderately concave. Abdomen with ventrite 1 slightly convex, glabrous at median section, ventrite 2 glabrous at median section, ventrite 5 as long as ventrite 1, flat. Middle and hind tibiae wider basally. Male genitalia ( Figure 126 View FIGURES 120–129 ) with median lobe in lateral view stout, in ventral view longer than 1/2 length of apodemes (0.6 to 0.8), lateral sides straight, divergent from the base to the apex, apex acute; apical process in lateral view very large (0.45–0.55 as long as median lobe body), slightly curved; in ventral view not constricted beyond median orifice. Female with sternite eight trapezoidal, apex not constricted, membranous area as long as the basal plate, spermatheca shallowly curved, ramus and nodulus indistinct.

Geographic distribution. México (Chiapas).

Habitat and elevation. Specimens were collected from leaf litter in cloud forest between 1300–2100 m.

Derivation of specific name. Patronym, named after Manuel Girón Intzin, of Ecosur (El Colegio de Frontera Sur), San Cristobal de las Casas, México.

Material examined. Total 10 males, 4 females. Holotype male: ( CMNC): México: Chiapas, Tenejapa, Yashanal , elev. 1800 m (16°49'6.6''N, 92°26'33.72''W), 21.vii.2003, coll. R GoogleMaps . S. Anderson. Paratypes: México: Chiapas, Bochil , 5.9 Km E. Bochil, elev. 1300 m (17°0'44.64''N, 90°46'31.8''W), 15.ix.1992, coll. R GoogleMaps . S. Anderson — 2 males, 2 females ( CMNC, ECOS); Chalchihuitán, Cerros de Chalchihuitán , elev. 2050 m (16°59'20.76''N, 92°37'13.08''W), 24.vii.2003, coll. R GoogleMaps . S. Anderson — 1 male ( CMNC); El Bosque , 10 km W El Bosque, elev. 1475 m (17°2'36.6''N, 92°45'43.56''W), 15.ix.1992, coll. R GoogleMaps . S. Anderson — 1 male ( CMNC); Oxchuc, Cruz Wix, 13.vi.2006, coll. M. Girón — 1 male ( ECOS); Pueblo Nuevo Solistahuacán , Reserva la Yerbabuena , 2.1 km NW de Pueblo Nuevo, Solistahuacán, elev. 2100 m (17°11'12.12''N, 92°53'43.44''W), 23.ix.1992, coll. R GoogleMaps . S. Anderson — 2 males ( CMNC); Rayon , 8.9 km E Rayón, elev. 1500 m (17°10'58.08''N, 92°55'47.28''W), 19.ix.1991, coll. R GoogleMaps . S. Anderson — 1 male ( CMNC); Tenejapa, Ojo de Agua , elev. 1800 m (16°49'6.6''N, 92°26'33.72''W), 21.vii.2003, coll. R GoogleMaps . S. Anderson — 1 male ( CMNC); Trinitaria, Parque Nacional Lagos de Montebello, a 50 mts Ote. de camino a 5 lagos, elev. 1594 m (16°6'21.88''N, 91°40'49.85''W), 22.vi.2007, coll. J. L. Cozar — 2 females ( ECOS) GoogleMaps .


Departamento de Geologia, Universidad de Chile













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