Theognete caviventris Anderson 2010, new species
Creators: name: Anderson, Robert S.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Theognete
Theognete caviventris

description: <b>12. <i>Theognete caviventris</i> Anderson, new species</b> (Figures 6, 59, 64, 68) <b>Diagnosis</b>. Size. Length, male, 4.05–4.61mm; female, 3.99–4.66mm. Width, male, 2.25–2.70mm; female, 2.02–2.53mm. As for <i>T. denticulata</i> except elytra with disk convex, not flattened, and with striae not impressed; abdomen with ventrite 1 sloping anteriad but not impressed or tuberculate, ventrite 5 with pair of large basal punctures and median row of 4 smaller punctures, the middle 2 confluent and appearing as a transverse impression, no apical excavation; hind tibiae without teeth. Aedeagus as in Fig. 64. <b>Geographical distribution</b>. México (Hidalgo, Puebla, Querétaro, San Luis Potosí), the most extensive range of any <i>Theognete</i> species. <b>Natural history</b>. Collected from berlese extraction of cloud forest and mixed oak forest leaf litter at elevations ranging from 1050–1700m; one specimen taken on wood chips of cut oak. <b>Derivation of specific name</b>. Named from the Latin <i>cavu</i>, meaning hole, and <i>venter</i>, meaning belly, in reference to the deeply excavated mesosternum and metasternum. <b>Material examined</b>. 32&amp;male;, 26&amp;female;&amp;female; (CMNC, CWOB, ECOS, FMNH, MCZC, USNM). Holotype &amp;male; (CMNC): MÉXICO: Hidalgo. 1189m, 55 km N.E. Jacala, 4.VI.87, R. Anderson, berlese cloud forest litter / HOLOTYPE &amp;male;, <i>Theognete caviventris</i> sp. nov., R.S. Anderson. Aedeagus extracted. Paratypes: MÉXICO. Unspecified locality, Orchid plants, 3-3.52, 52-2721 (1&amp;male; USNM). Hidalgo. Chapalhuacán (6.7 mi. W.), c. 1700m, 16.VII.1969, S. &amp; J. Peck, cloud forest litter, BER170 (1&amp;female; CWOB). Chapalhuacán (4 mi. S. W.), 3500', 5.VII.1976, A. Newton, berlese cloud forest leaf litter (1&amp;female; MCZC). Chapalhuacán (6.6 mi. S. W.), 3900', 5. VII. 1976, A. Newton, berlese cloud forest leaf litter (4&amp;male;, 3&amp;female;&amp;female; MCZC). Jacala (55 km N.E.), 1189m, 4.VI.1987, R. Anderson, berlese cloud forest litter (2&amp;male;, 3&amp;female;&amp;female; CMNC, ECOS). Tlanchinol (2.8 mi. N.), 5200', 9–11.VII.1973, A. Newton, berlese cloud forest leaf litter (2&amp;male;, 3&amp;female;&amp;female; MCZC). 9–14.VII.1973, A. Newton, on wood chips of cut oak tree (1&amp;female; MCZC). Tlanchinol (2.4 mi. N. Hwy 105), 5000', 9.V.1983, C. W. &amp; L. O'Brien &amp; G.B. Marshall, berlese sifted cloud forest litter (1&amp;female; CWOB). Tlanchinol (2.7 mi. N. Hwy 105), 5000', 14.VI.1983, C. W. &amp; L. O'Brien &amp; G.B. Marshall, berlese sifted cloud forest litter (2&amp;female;&amp;female; CWOB). 15.VI.1983, C. W. &amp; L. O'Brien &amp; G.B. Marshall, berlese sifted cloud forest litter (2&amp;male;, 3&amp;female;&amp;female; CWOB). 16.VI.1983, C. W. &amp; L. O'Brien &amp; G.B. Marshall, berlese sifted cloud forest litter (1&amp;male; CWOB). 17.VI.1983, C. W. &amp; L. O'Brien &amp; G.B. Marshall, berlese sifted cloud forest litter (2&amp;male; CWOB). Tlanchinol (2.4 mi. N.E.), 4500', 14.VI.1983, S. &amp; J. Peck, cloud forest litter (2&amp;male;, 1&amp;female; CMNC). Tlanchinol (43 km S. W. Huejutla), 1490m, 1.VIII.1983, S. &amp; J. Peck, cloud forest litter (5&amp;male;, 2&amp;female;&amp;female; CMNC). Puebla. Huauchinango (4.4 mi. S. W.), 1700m, 25–28.VII.1969, Leg. S. &amp; J. Peck, moss ravine oak forest malt syrup bait trap, #523-4 (1&amp;female; FMNH). Xicotepec de Juarez (1.2 mi. N.), 3500', 17.VI.1983, R. Anderson, cloud/ mixed oak forest (5&amp;male;, 1&amp;female; CMNC, ECOS). Querétaro. Municipio Pinal de Amoles, Huasquilico, 21°9.6'N 99°34.39'W, 1760m, 24.IX.2004, R. Jones, leaf litter (1&amp;male; CMNC). San Luis Potosí. Xilitla (14 mi. W.), 4800', 29.VI.1973, A. Newton, leaf and log litter non-coniferous <i>Liquidambar</i> forest (3&amp;male;, 2&amp;female;&amp;female; MCZC). Xilitla (20 km W.), 1600m, 12.VI.1983, S. &amp; J. Peck, cloud forest litter (2&amp;male;, 1&amp;female; CMNC). <b>Chorological relationships</b>. In various parts of its range sympatric with <i>T. gracilis</i>, <i>T. tuberosa</i>, <i>T. hesmos</i>, <i>T. grimblyae</i>, <i>T. minuta</i>, <i>T. harbini</i>, <i>T. distenta</i>, <i>T. chauliothorax</i> and <i>T. fulgida</i>.
description: Published as part of <i>Anderson, Robert S., 2010, A taxonomic monograph of the Middle American leaf-litter inhabiting weevil genus Theognete Champion (Coleoptera: Curculionidae; Molytinae; Lymantini) 2458, pp. 1-127 in Zootaxa 2458 (1)</i> on pages 24-25, DOI: 10.11646/zootaxa.2458.1.1, http://zenodo.org/record/5316658