Tylodinus andersoni 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 : 16

3. Tylodinus andersoni Luna-Cozar , sp. nov.

( Figures 13 , 32–33 , 100 , 130 )

Diagnosis. Length male 8.3 mm. Width male 4.4 mm. As for T. nodulosus with the following exceptions: body 1.9x longer than wide. Vertex with scales darker than scales of head. Pronotum with fine granules, scales and granules longer and denser in anterior section, posterior section of lateral area divided forming two small protuberances. Elytra with basal margin slightly sinuate, surface with fine granules, longer toward middle of elytra, striae with punctures small and moderately deep, intervals very weak; tubercle distribution as follows: I2 with small tubercle at middle of elytra; I3 with two longer tubercles: first subbasal, second very elongate, laminate, extending from middle of elytra to base of elytral declivity; I4 with small tubercle at middle of elytra, merged with tubercle on I3; I5 and I6 with tubercle merged, small, situated at middle of elytra; I7 with small subbasal tubercle. Metasternum and ventrite 1 with setigerous scales, broader at posterior section in ventrite 1; ventrite 5 with a weak anterior impression. Legs with premucro only on front tibiae. Male genitalia ( Figure 100 ) in ventral view with lateral sides subparallel; apical process very reduced, 0.02 x as long as median lobe. Female unknown.

Geographic distribution. México (Chiapas)

Habitat and elevation. The holotype was hand collected in high elevation cloud forest at 2050 m.

Derivation of the specific name. Patronym, named after Robert S. Anderson ( Canada) of the Canadian Museum of Nature, Canada.

Material examined. Total 1 male. Holotype male ( CMNC). México: Chiapas, Ángel Albino Corzo, Reserva El Triunfo, Polígono 1, 2050 m (15°39.428’ N, 92°48.537’ W), 16–21.xi.2001. R. Anderson.

Figures

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 28–35. Dorsal and lateral habitus: 28–29. Tylodinus nodulosus, 30–31. Tylodinus zilchi, 32–33. Tylodinus andersoni, 34–35. Tylodinus cavicrus.

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 130–131. Map showing collecting sites. 130. Occurrences in México (Chiapas) and Central America of: Tylodinus zilchi (El Salvador, Honduras); Tylodinus andersoni (México), Tylodinus canaliculatus (México, Guatemala), Tylodinus triumforium (México), Tylodinus sepulturaensis (México), Tylodinus cavicrus (Guatemala), Tylodinus pseudocavicrus (México); 131. Occurrences in Chiapas, México of: Tylodinus complicatus, Tylodinus ixchel, Tylodinus dominicus, Tylodinus immundus, Tylodinus porvenirensis, Tylodinus branstetteri.