Tylodinus branstetteri 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 : 52

31. Tylodinus branstetteri Luna-Cozar , sp. nov.

( Figures 86–87 , 124 , 131 )

Diagnosis. Length male, 3.2 mm. Width male, 1.8 mm. As for T. kuscheli with following exceptions: body 2.0x longer than wide. Vertex scales dense to contiguous, frons moderately concave. Pronotum in lateral view moderately convex, outline with anterior and posterior constriction ( Figures 11 , 87 ). Base of elytral declivity with tubercle on I2 longer than tubercle on I4. Metasternum flat, glabrous. Male abdomen with ventrites 3–5 in same plane as ventrites 1–2, ventrite 1 feebly concave, glabrous at median section, ventrite 2 glabrous at median section. Male genitalia ( Figure 124 ) with median lobe in ventral view very broadly swollen near 0.20 length from base; apical process in ventral view moderately large (0.26–0.34 as long as body of median lobe), sinuate. Female unknown.

Geographic distribution. México (Chiapas).

Habitat and elevation. The holotype was collected from leaf litter in high elevation cloud forest at 2140 m.

Derivation of specific name. Patronym, named after Michael G. Branstetter ( U.S.A.), a worker on Formicidae and LLAMA field companion.

Material examined. Total 1 male. Holotype male ( CMNC): México: Chiapas, La Concordia, 4 km SE Custepec , elev. 2140 m (15°42'38.48''N, 92°55'43.07''W), 20.v.2008, coll. LLAMA (Wa-A-03-1-01).

Figures

FIGURES 84–91. Dorsal and lateral habitus: 84–85. Tylodinus pappi, 86–87. Tylodinus branstetteri, 88–89. Tylodinus immundus, 90–91. Tylodinus intzin.

FIGURES 120–129. Ventral and lateral habitus of median lobe: 120. Tylodinus dominicus, 121. Tylodinus noctis, 122. Tylodinus kuscheli, 123. Tylodinus pappi, 124. Tylodinus branstetteri, 125. Tylodinus immundus, 126. Tylodinus intzin, 127. Tylodinus gibbosus, 128. Tylodinus kissingeri, 129. Tylodinus pinguis.

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.

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).