Tylodinus rugosus 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 : 20

6. Tylodinus rugosus Luna-Cozar , sp. nov.

( Figures 11 , 15 , 27 , 38–39 , 103 , 135 )

Diagnosis. Length male, 3.4–3.8 mm, female, 3.5–4.1 mm. Width male, 1.8–2.0 mm, female 1.7–2.3 mm. Body 2.0x longer than wide. Head with white to pale yellow scales on middle of vertex; frons very concave; surface with rough appearance, punctures deep; rostrum strongly carinate. Pronotum in lateral view moderately convex; surface with longitudinal carina at median area. Elytra with basal margin slightly sinuate ( Figure 3 ). Elytra with tubercles as follows: I2 with tubercle on base of declivity; I3 with three tubercles, first tubercle sub-basal, second tubercle near middle of elytra and third tubercle at middle of declivity, smaller than the previous tubercle; I4 with two tubercles, one between tubercles of I3 on disc, and the other at same position as tubercle on I2 but smaller; I5 with two tubercles similar and in the same position as I3 tubercles on disc; I6 with one tubercle similar and in the same position as I4 tubercle; I7 with two tubercles similar and in the same position as I5 tubercles, but smaller. Metasternal tooth absent. Male with ventrite 1 moderately concave, ventrite 5 convex at middle area. Hind tibia with external tooth. Male genitalia in lateral view stout ( Figure 78 ); in ventral view as long than half length of apodemes, apex blunt. Female genitalia with sternite eight doliform, with the apex not constricted, median membranous area as long as half the length of the basal plate.

Geographic distribution. México (Chiapas).

Habitat and elevation. Specimens were collected from leaf litter in cloud forest between 1300–2200 m.

Derivation of specific name. Name derived from the Latin word rugosus = full of wrinkles, folds or creases.

Material examined. Total 7 males, 9 females. Holotype male ( CMNC): México: Chiapas, Villa Flores, Sierra Morena , La Peña, 23.vi.2006, coll. J. L. Cozar ( CMNC). Paratypes: México: Chiapas, Ejido Sierra Morena, R . B. La Sepultura , elev. 1497 m (16°09.856'N, 93°36.291'W), 13.v.2008, coll. R . S. Anderson — 1 male, 2 females ( CMNC); same locality, Cerro Bola , elev. 1948 m (16.13464°N, 93.60077°W), 14.v.2008, coll. R . S. Anderson — 1 female ( CMNC); same locality, elev. 1360 m (16.15938°N, 93.60495°W), 12.v.2008, LLAMA (Wa-A-01-1- 11) — 1 female ( CMNC); Coapilla, 5 km NE Coapilla, elev. 1990 m (17°10'32.16''N, 93°9'.36''W), 26.v.2008, coll. M. G. Branstetter — 1 female, 2 males ( CMNC); La Concordia, 4 km SE Custepec , elev. 2163 m (15°42'11.5''N, 92°55'54.8''W), 18.v.2008, coll. M. G. Branstetter — 1 female ( CMNC); same locality (15.71119°N 92.92840°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-01) — 1 male ( ECOS); 4 km SE Custepec , elev. 2140 m (15°42'38.48''N, 92°55'43.07''W), 20.v.2008, coll. LLAMA (Wa-A-03-1-03) — 1 male ( ECOS); 4 km SE Custepec , elev. 2125 m (15.70635°N, 92.93125°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-34) — 1 male ( CMNC); same locality (15.70644°N, 92.93124°W), LLAMA (Wa-A-03-2-32) — 1 female ( CMNC); same locality (15.70773°N, 92.93111°W), LLAMA (Wa-A-03-2-02) — 1 female ( ECOS); San Cristobal de las Casas, Reserva Huitepec , 10.xi.1994, coll. R . Jones — 1 female ( CMNC) .

Figures

FIGURES 1–11. 1–5. Dorsal outline: 1. Generalized Tylodinus, indicating terminology used in this study. Key: letters indicate areas of pronotum. A, anterior area; B, median area; C, posterior area; a, anterior of lateral area; b, median section of lateral area; c, median section of dorsal area; d, anterior section of dorsal area; e, posterior section of lateral area; f, posterior section of dorsal area. 2. Tylodinus variabilis, note elytra basal margin straight. 3. Tylodinus ixchel, note elytra basal margin slightly sinuate. 4. Tylodinus immundus, note elytral basal margin sinuate. 5. Tylodinus elongatus, note elytra basal margin very sinuate. 6–11. Lateral outline: 6. Tylodinus complicatus, male, note ventrites 3–5 in same plane as ventrites 1–2. 7. Tylodinus variabilis, male, note ventrites 3–5 not in same plane as ventrites 1–2. 8. Tylodinus coapillensis, female, note ventrites 1–2 strongly convex, ventrites 3–5 not in same plane as ventrites 1–2. 9. Tylodinus zilchi (schematic). 10. Tylodinus sepulturaensis (schematic) 11. Tylodinus rugosus (schematic).

FIGURES 12–19. 12. Tylodinus pusillus head a) male, b) female. 13–14. Dorsal habitus of pronotum showing the lateral side of pronotum 13. Tylodinus andersoni, 14. Tylodinus porvenirensis. 15–17. Dorsal habitus: 15. Tylodinus rugosus, 16. Tylodinus exiguus, 17. Tylodinus jonesi. 18. Tylodinus coapillensis note tubercle on elytra declivity base, 19. Tylodinus elongatus showing metasternal tooth.

FIGURES 20–27. 20–21. Tylodinus spiniventris: 20. meso- and metathorax (male) 21. ventrite 5 (female), 22. Tylodinus elongatus ventrite 5 (female), 23. Tylodinus triumforium, ventrite 2 (male). 24. Tylodinus complicatus, ventrite 2 (female). 25. Tylodinus complicatus, ventrite 2 (male), 26. Hind tibia of Tylodinus triumforium, 27. Front tibia of Tylodinus rugosus.

FIGURES 36–43. Dorsal and lateral habitus: 36–37. Tylodinus pseudocavicrus, 38–39. Tylodinus rugosus. 40–41. Tylodinus buchanani. 42–43. Tylodinus exiguus.

FIGURES 100–109. Ventral and lateral habitus of median lobe: 100. Tylodinus andersoni, 101. Tylodinus cavicrus, 102. Tylodinus pseudocavicrus, 103. Tylodinus rugosus, 104. Tylodinus exiguus, 105. Tylodinus ixchel, 106. Tylodinus jonesi, 107. Tylodinus variabilis, 108). Tylodinus leoncortesi, 109. Tylodinus triumforium.

FIGURES 134–135. Maps showing collecting sites. 134. Occurrences in Chiapas, México of: Tylodinus rufus, Tylodinus kuscheli, Tylodinus pappi, Tylodinus jonesi, Tylodinus coapillensis; 135. Occurrences in Chiapas, México of: Tylodinus spiniventris, Tylodinus lum, Tylodinus noctis, Tylodinus pinguis, Tylodinus rugosus.

FIGURES 76–83. Dorsal and lateral habitus: 76–77. Tylodinus rufus, 78–79. Tylodinus dominicus, 80–81. Tylodinus noctis, 82–83. Tylodinus kuscheli.