Tylodinus cavicrus Champion 1905

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 : 18-19

4. Tylodinus cavicrus Champion 1905

( Figures 34–35 , 101 , 130 )

Tylodinus cavicrus Champion 1905: 468 , lam. 23, figs. 4, 4 a.; Blackwelder 1947: 860; O’Brien and Wibmer 1982: 139. Diagnosis. Length male, 5.0– 5.9 mm, female, 5.4–5.8 mm. Width male, 2.1–2.8 mm, female 2.7–2.9 mm. In addition to Champion’s description: As for T. pseudocavicrus with the following exceptions: body approximately 2.3x longer than wide. Frons in lateral view slightly concave. Pronotum in lateral view strongly convex, moderately depressed basally and strongly depressed anteriorly. Elytral declivity with I4 tubercle larger than the tubercle of I2. Abdomen of male with ventrite 5 flat in the middle. Male genitalia ( Fig 101 ) with the apical process smaller.

Geographic distribution. Guatemala.

Habitat and elevation: Specimens have been collected between 2100–2750 m in wet high elevation cloud forest leaf litter and by beating dead branches.

Derivation of specific name. Champion (1905) did not indicate the derivation of the specific name cavicrus , but it appears to be derived from two words combined from Latin cavi = hollow, excavated, open; and crus = leg; referring to the peculiar form of the leg.

Material examined. Total 30 males, 8 females. Holotype male ( BMNH) Guatemala: Quiché Mountains 7000–9000 feet (Champion). Guatemala: El Progresso , 28–29 km N. San Augustin, 7000–8500’, 19–21 April 1990, coll. J.E. Wappes — 1 male, 1 female ( CMNC); Cerro Pinalon (15.08392°N 89.93013°W), elev. 2750 m, 1.v.2009, LLAMA (Wm-B-01-1-04)— 1 male ( CMNC); same locality (15.08411°N 89.93239°W), elev. 2715 m, 1.v.2009, LLAMA (Wm-B-01-1-05)— 1 male ( CMNC); same locality (15.08432°N 89.93801°W), elev. 2640 m, 1.v.2009, LLAMA (Wm-B-01-1-06)— 1 male ( CMNC); Cerro Pinalon, Finca Las Nubes (15.08385°N 89.94258°W), elev. 2574m, 1–5.v.2009, coll. R.S..Anderson, cloud forest 2009-016— 24 males, 7 females ( BMNH, CMNC, CWOB, ECOS); Baja Verapaz, Biotopo El Quetzal (15.21274°N 90.21675°W), elev. 1700–1900m, 7–10.v.2009, coll. R. S. Anderson, cloud forest, 2009-025— 1 male ( CMNC).

Figures

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.