Tylodinus pusillus 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 : 41

22. Tylodinus pusillus Luna-Cozar , sp. nov.

( Figures 68–69 , 115 , 133 )

Diagnosis. Length male 1.8-2.3 mm, female, 1.8-2.2 mm. Width male 0.9-1.0 mm, female, 1.0- 1.1 mm. Body 2.1x longer than wide, cuticle shiny, scales pale yellow. Pronotum somewhat hollowed. Base of elytra declivity with tubercle on I2 longer than tubercle on I4. Abdomen with ventrite 2 longer than ventrites 3-4 combined. Legs black, femora unarmed, occasionally with moderately to distinctly obtusely angulate carina. Male genitalia ( Figure 115 ) with median lobe in lateral view stout; in ventral view as long as apodemes, lateral sides subparallel. Female genitalia with sternite eight trapezoidal, with median membranous area along the basal plate, ramus and nodulus indistinct.

Geographic distribution. México (Chiapas).

Habitat and elevation. Specimens were collected from leaf litter in high elevation cloud forest between 1800- 2200 m.

Derivation of specific name. Name derived from Latin word pusillus = tiny, wee, very small.

Material examined. Total 83 males, 62 females. Holotype male ( CMNC): México: 4.3 Km SE Custepec, Campamento El Quetzal , elev. 2160 m (15°42'N, 92°56’W), 18.vii.2007, coll. M. G. Branstetter (#679). Paratypes: México: Chiapas, 4km SE Custepec, elev. 2140 m (15.70954°N 92.92916°W), 20.v.2008, coll. LLAMA (Wa-A- 03-1-41) — 1 male, 1 female ( CMNC); Ángel Albino Corzo, Reserva El Triunfo, Campamento , elev. 2020 m (15°39'25.6''N, 92°48'40.3''W), 16-20.xi.2002, coll. R . Jones — 1 male ( CMNC); La Concordia , 4 km SE Custepec, elev. 2125 m (15.70777°N 92.93110°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-01) — 1 male ( CMNC); 4.3 Km SE Custepec, Campamento El Quetzal , elev. 2160 m (15°42'N, 92°55'59.9''W), 17.vii.2007, coll. M. G. Branstetter — 3 females ( CMNC); same locality, 18.vii.2007, coll. M. G. Branstetter — 3 males, 4 females ( BMNH, CMNC); 4 km SE Custepec, elev. 2125 m (15.70760°N 92.93115°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-05) — 1 male, 1 female ( CMNC); same locality (15.70764°N 92.93114°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-04) — 3 males ( CMNC); same locality (15.70755°N 92.93116°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-06) — 1 male ( CMNC); same locality (15.70746°N 92.93118°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-08) — 1 male ( CMNC); 4 km SE Custepec , elev. 2125 m (15.70721°N 92.93127°W), 20.v.208, coll. LLAMA (Wa-A-03-2-14) — 1 male, 1 female ( ECOS); same locality (15.71119°N 92.92840°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-01) — 3 males, 1 female ( ECOS); same locality (15.71115°N 92.92842°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-02) — 1 male ( ECOS); same locality (15.71111°N 92.92844°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-03) — 1 male ( CMNC); same locality (15.71078°N 92.92859°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-11) — 2 females ( CMNC); same locality (15.71032°N 92.92880°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-22) — 1 male ( ECOS); same locality (15.71028°N 92.92882°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-23) — 1 male, 3 females ( CMNC); same locality (15.70941°N 92.92922°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-44) — 1 males, 2 females ( ECOS); same locality (15.71024°N 92.92884°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-24) — 1 female ( CMNC); same locality (15.70950°N 92.92918°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-42) — 1 female ( CMNC); same locality (15.71016°N 92.92887°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-26) — 1 female ( CMNC); same locality (15.70937°N 92.92924°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-45) — 2 males, 2 females ( ECOS); same locality (15.70933°N 92.92925°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-46) — 1 female ( CMNC); same locality (15.70929°N 92.92927°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-47) — 2 males, 1 female ( CMNC); same locality (15.70925°N 92.92929°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-48) — 3 males, 5 females ( BMNH, CMNC, CWOB); same locality (15.70917°N 92.92933°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-50) — 1 male, 1 female ( ECOS); same locality (15.70777°N 92.93110°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-01) — 1 male, 1 female ( CMNC); same locality (15.70773°N 92.93111°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-02) — 1 female ( CMNC); same locality (15.70742°N 92.93120°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-09) — 1 male, 1 female ( CMNC); same locality (15.70729°N 92.93123°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-12) — 1 male, 2 females ( ECOS); same locality (15.70725°N 92.93125°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-13) — 1 female ( CMNC); same locality (15.70708°N 92.93131°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-17) — 1 female ( CMNC); same locality (15.70662°N 92.93126°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-28) — 1 male, 1 female ( ECOS); same locality (15.70658°N 92.93126°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-29) — 1 male, 2 females ( ECOS); same locality (15.70644°N 92.93124°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-32) — 1 female ( CMNC); same locality (15.70635°N 92.93125°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-34) — 1 male, 1 female ( CMNC); same locality (15.70631°N 92.93126°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-35) — 1 male, 2 females ( CMNC); same locality (15.70595°N 92.93129°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-43) — 5 males, 4 females ( CMNC, ECOS); same locality (15.70591°N 92.93129°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-44) — 2 females ( CMNC); same locality (15.70568°N 92.93128°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-49) — 1 female ( CMNC); same locality, elev. 2140 m (15.71065°N 92.92865°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-14) — 1 male ( CMNC); same locality (15.70987°N 92.92901°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-33) — 1 male ( CMNC); same locality (15.70983°N 92.92903°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-34) — 1 male ( CMNC); same locality (15.70970°N 92.92908°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-37) — 3 males ( ECOS); same locality (15.70962°N 92.92912°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-39) — 2 males ( ECOS); same locality (15.70946°N 92.92920°W), 20.v.2008, coll. LLAMA (Wa-A-03-1-43) — 1 male ( CMNC); same locality, elev. 2125 m (15.70738°N 92.93121°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-10) — 1 male ( CMNC); same locality (15.70733°N 92.93122°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-11) — 1 male ( CMNC); same locality (15.70682°N 92.93136°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-23) — 1 male ( CMNC); same locality (15.70679°N 92.93133°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-24) — 1 male ( CMNC); same locality (15.70667°N 92.93127°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-27) — 2 males ( CMNC); same locality (15.70653°N 92.93125°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-30) — 1 male ( CMNC); same locality (15.70618°N 92.93128°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-38) — 1 male ( ECOS); same locality (15.70609°N 92.93129°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-40) — 1 male ( ECOS); same locality (15.70600°N 92.93130°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-42) — 1 male ( CMNC); same locality (15.70582°N 92.93128°W), 20.v.2008, coll. LLAMA (Wa-A-03-2-46) — 2 males ( CMNC); Reserva de la Biósfera El Triunfo, Campamento El Quetzal , elev. 2160 m (15°42'18.4''N, 92°55'53.8''W), 22.v.2008, coll. R . S. Anderson — 1 male ( CMNC); Reserva de la Biósfera El Triunfo, Campamento El Quetzal , elev. 1800 m (15°43'14.5''N, 92°56'24.4''W), 18.vii.2007, coll. R . S. Anderson — 1 male ( CMNC); same locality, elev. 2200 m (15.70819°N 92.93070°W)— 2 males ( CMNC); same locality, elev. 2160 m (15.70510N 92.93157W)— 1 male ( CMNC); same locality, 21.v.2008, coll. R . S. Anderson — 2 males ( CMNC); same locality, elev. 2180 m (15.71115°N 92.92832°W), 21.v.2008, coll. R . S. Anderson — 3 females ( CMNC); same locality, 21.v.2008, coll. R . S. Anderson — 2 males ( CMNC); Chiapas, Motozintla , 7 km SSW Motozintla de Mendoza, elev. 2000 m (15°19'40.8''N, 92°16'34.7''W), 17.ix.1992, coll. R . S. Anderson — 2 females ( CMNC); Unión Juárez, Volcán Tacaná, lower slopes, ca 4 km N, Unión Juárez , elev. 2000 m (15°5'47.4''N, 92°5'17.2''W), 18.ix.1992, coll. R . S. Anderson — 1 male, 1 female ( CMNC); same locality, 19.ix.1992, coll. R . S. Anderson — 10 males, 4 females ( CMNC, CWOB, ECOS) .

Figures

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 132–133. Maps showing collecting sites. 132. Occurrences in Chiapas, México of: Tylodinus intzin, Tylodinus variabilis, Tylodinus exiguus, Tylodinus mutabilis, Tylodinus wibmeri, Tylodinus elongatus; 133. Occurrences in Chiapas, México of: Tylodinus leoncortesi, Tylodinus buchanani, Tylodinus pusillus, Tylodinus gibbosus, Tylodinus kissingeri, Tylodinus parvus.