Tylodinus porvenirensis 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 : 42

23. Tylodinus porvenirensis Luna-Cozar , sp. nov.

( Figures 14 , 70–71 , 116 , 131 )

Diagnosis. Length male 2.3 mm. Width male 1.1–1.2 mm. As for T. pusillus with following exceptions: body 1.9x longer than wide. Pronotum in dorsal view hollowed. Base of elytra declivity with tubercle on I2 as long as tubercle on I4. Abdomen with ventrite 2 as long as ventrites 3–4 combined. Legs reddish, femora armed. Male genitalia ( Figure 116 ) with median lobe in lateral view moderately stout; in ventral view as long as half apodeme length, lateral sides convergent. Female unknown.

Geographic distribution. México ( Chiapas).

Habitat and elevation. The two known specimens were collected from leaf litter in oak-pine-fir forest at 2800 m.

Derivation of specific name. Named from Latinized adjective meaning ‘‘porvenir,’’ referring to the region in which this species is found and the suffix ‘‘- ensis ’’ denoting place or locality.

Material examined. Total 2 males. Holotype male ( CMNC): México: Chiapas, El Porvenir, El Porvenir ( 2 km NE), elev. 2800 m ( 15°28'13.8''N, 92°16'47.64''W), 27.vii.2005, coll. R . S. Anderson. Paratype: Same data as holotype— 1 male ( CMNC) .

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 68–75. Dorsal and lateral habitus: 68–69. Tylodinus pusillus, 70–71. Tylodinus porvenirensis, 72–73. Tylodinus elongatus, 74–75. Tylodinus complicatus.

FIGURES 110–119. Ventral and lateral habitus of median lobe: 110. Tylodinus sepulturaensis, 111. Tylodinus lum, 112. Tylodinus spiniventris, 113. Tylodinus mutabilis, 114. Tylodinus parvus, 115. Tylodinus pusillus, 116. Tylodinus porvenirensis, 117. Tylodinus elongatus, 118. Tylodinus complicatus, 119. Tylodinus rufus.

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.