Temnocerus herediensis, Hamilton, 2010

Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 21-23

Temnocerus herediensis , new species

( Fig. 21, 22 , 68 , 89 )

Type locality. Costa Rica, Heredia, La Selva Biological Station

Type depository. National Institute of Biodiversity, Costa Rica ( INBC)

Type specimens. Holotype male with the following label data: Costa Rica, Heredia, Est. Biol. La Selva , 50-150 m, 10 o 26’ N 84 o 01W, May 1993, INBio-OET, 5 Mayo, 1993, Conceveiba pleiostemona, FOT /04/23, INBIO, CR1001,227898 [bar code] . Allotype with same data as holotype except FOT/04/17, INBIO, CR1002,069080 [bar code]. The paratypes are as follows: 1 male, Costa Rica, Prov. Heredia, F La Selva, 3 km S Pto. Viejo, 10 o 26’N 84 o 01’W, 25-iii-1980, H. A. Hespenheide ( CHAH); 1 female, Costa Rica, Heredia, Est. Biol. La Selva , 50- 150, 10 o 26’N 84 o 01’W, Jul 1993, INBio-OET, Pentaclethra macroloba, FPM /08/26, 4 de Julio, 1983, INBIOCR1002260405 ( INBC); 1 female, Costa Rica, Guan. [Guanacaste], Latoboga For. Res., 9 km SW Canas, 20-21 May 1987, W. L. Rubink, M. T. ( CWOB) .

Description. Color and pubescence: Body black throughout with faint bluish luster. Pubescence composed of inconspicuous short, brownish, reclinate setae. Size: Male (n = 2) 2.3 × 0.8 mm; Female (n =

3) 1.9 × 0.6 mm to 2.0 × 0.8 mm. Head quadrate, as long as wide; punctures round, moderately dense; interspaces minutely granulose; frons about twice as wide as width of rostral base; eyes large, strongly protuberant, weakly conical. Rostrum short, only slightly longer than head, with mid-dorsal channel from base to middle of rostrum; in lateral view weakly arcuate and slightly flattened apically; moderately punctured except for smooth dorso-apical area; juncture of rostrum and head weakly concave. Antenna inserted near basal 1/3; scape and funicular segment 1 ovoglobose, subequal in length; funicular segment 1 slightly more robust; funicular segments 2-4 narrow, subequal; segments 5-7 shorter, bead-like; segments 6 and 7 more robust than 5. Club abrupt, basal and middle segment subequal in length; apical segment slightly longer; basal segment narrowed basally; apical segment acuminate. Pronotum longer than wide; widest at middle, densely punctured; punctures large; interspaces minutely granulose. Scutellum small, subquadrate. Elytra twice as long as pronotum, widest near middle; humeri simple; striae deeply impressed, becoming slightly smaller posteriorly; intervals narrow, weakly raised, with single row setigerous punctures; interspaces between striae with single setigerous puncture. Thoracic pleura and sterna densely punctured; punctures, large, setigerous. Abdominal ventrites moderately punctured; punctures small, setigerous.

Distribution. Four specimens of T. herediensis are from the Costa Rican province of Heredia and a single specimen is from the northwest province of Guanacaste ( Fig. 89 ).

Etymology. The specific epithet is derived from the Costa Rican province of Heredia.

Comments. Adults of this species are dark and faintly bluish-black species with large dense pronotal punctures. The elytral punctures are slightly diminished in size posteriorly beyond the middle. The aedeagus is unique in this species ( Fig. 68 ). The median lobe has a wide pedon that narrows only slightly into a sharply truncate apex. The tectum is blade-like with a wide base evenly tapered to a pointed apex. The tegminal cap piece is finger-like with a relatively large pigmented sub-quadrate apex bearing a cluster of short setae. Endophallic bands are short and weakly defined.

Plant association. The primary type specimens were fogged from Conceveiba pleiostemona Donn. Sm. (Euphorbiaceae) . A single female specimen was fogged from Pentaclethra macroloba Willd. (Fabaceae) .

Figures

Figure 11-22. Heads of Temnocerus species, frontal view, male left and female right. 11-12) T. cyaneus n.sp., holotype and allotype. 13-14) T. ellus n.sp., holotype and allotype. 15-16) T. giganteus n.sp., holotype and allotype. 17-18) T. guatemalenus (Sharp). 19-20) T. guerrerensis n.sp., holotype and allotype. 21-22) T. herediensis n.sp., holotype and allotype.

Figure 59-86. Aedeagal tegmen and median lobe of Temnocerus species, dorsal view, 64X. 59) T. abdominalis (Voss). 60) T. chiapensis n. sp. 61) T. chiriquensis (Sharp). 62) T. confertus (Sharp). 63) T. cyaneus n. sp. 64) T. ellus n. sp. 65) T. giganteus n. sp.; 66) T. guatemalenus (Sharp). 67) T. guerrerensis n. sp. 68) T. herediensis n. sp. 69) T. mexicanus n. sp. 70) T. michoacensis n. sp. 71) T. minutus n. sp. 72) T. niger n. sp. 73) T. oaxacensis n. sp. 74) T. obrieni n. sp. 75) T. oculatus (Sharp). 76) T. potosi n. sp. 77) T. pseudaeratus n. sp. 78) T. pueblensis n. sp. 79) T. pusillus (Sharp). 80) T. regularis (Sharp). 81) T. rostralis n. sp. 82) T. rugosus n. sp. 83) T. salvensis n. sp. 84) T. tamaulipensis n. sp. 85) T. thesaurus (Sharp) 86) T. yucatensis n. sp.

Figure 87-90. Distribution of Temnocerus species. 87) T. abdominalis, red; T. chiapensis, blue; T. chiriquensis, black; T. rostralis, green. 88) T. confertus, red; T. ellus, blue; T. giganteus, black. 89) T. guerrerensis, blue; T. guatemalenus, red; T. herediensis, black. 90) T. mexicanus, red; T. michoacensis, blue; T. minutus, black.