Temnocerus salvensis, Hamilton, 2010

Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 37-38

Temnocerus salvensis , new species

( Fig. 51, 52 , 83 , 93 )

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 data: Costa Rica, Heredia, Est. Biol. La Selva , 50- 150 m 10 o 26’N, 84 o 01’W, Jul 1993, INBio-OET, 3 Julio, 1993, Goethalsia meiantha, FOT /07/36 ; Allotype with same data as holotype except FOT/07/04 ( INBC) . Paratype data as follows: 1 female, Costa Rica, Heredia, Est. Biol. La Selva , 50-150 m, 10 o 26’N, 84 o 01’W, 2 Nov 1994, INBio-OET, FPM/31/20, Pentaclethra macroloba ; 1 female, same as previous except FPM/31/23; 1 male, same as previous except 4 Nov 1994, FOT/33/23, Protium glabrum ; 1 male and 1 female, same as holotype except FOT/07/34 & FOT/07/12; 2 males, Costa Rica, La Selva Biol. Sta. , 5 Ene 2000, 1200 m, FOT/46/1-40, Eugenia ; 3 males, Costa Rica, Heredia, Est. Biol. La Selva , 50-150 m, 10 o 26’N, 84 o 01’W, Proy. ALAS, INBio-OET, 30 Diciembre 1999, FOT/43/01-40, Minquartia guianensis ; 1 male, Costa Rica, Heredia, Est. Biol. La Selva , 50-150 m, 10 o 26’N, 84 o 01’W, Jan 1994, INBio-OET, 7 Enero 1994, FVK 17/16, Virola koschnyi ; 1 male, Costa Rica, Heredia Pr: La Selva Biological Sta., 3 km S Puerto Viejo , 10 o 26’N, 84 o 01’W, 1 Abril 1993, bosque primario, M/06/ 053 ; 1 female, same as previous except 2 Marzo 1993, M/06/02 ( INBC) .

Description. Color and pubescence: Body black throughout with a faint purplish luster. Pubescence of short appressed brownish setae. Size: Male (n = 10) 2.3 × 0.8 mm to 3.1 × 1.2 mm; Female (n = 5) 2.2 × 1.0 mm to 2.9 × 1.2 mm. Head quadrate, punctures small, round, moderately spaced; interspaces minutely granulose; frons convex; eyes strongly protuberant. Rostrum about.33 times longer than head; widened at apex, with basal mid-dorsal channel; in lateral view arcuate, slightly flattened apically, moderately punctured throughout except small smooth spot at mid-dorsal apex; juncture of rostrum and head distinctly concave. Antennae inserted at basal 1/3, scape and first funicular segment ovoglobose, subequal in length; funicular segments 2-4 narrow, clavate, subequal; segments 5-7 oval, subequal; club segments wide, densely setose, subequal in length; terminal segment acuminate. Pronotum longer than wide, widest just behind middle, densely punctured. Scutellum small, quadrate, minutely punctured. Elytra about twice as long as pronotum, widest just behind middle; humeri simple; striae moderately impressed, larger and deeper in basal 1/2, intervals flat with single row of setigerous punctures; interspace between striae with single setigerous puncture. Thoracic pleura and sterna densely punctured; sterna with smooth bulbous ventral areas on each side. Abdominal ventrites concave with small scattered punctures.

Distribution. All specimens were collected at the La Selva Biological Station in the Costa Rican province of Heredia. ( Fig. 93 ).

Etymology. The specific epithet is derived from the Spanish word “Selva” meaning forest or jungle and is in reference to the La Selva Biological Station type locality.

Comments. Temnocerus salvensis is recognized by the overall black color and faint purplish luster, convex frons, and the distinctly concave junction of the head and rostrum in lateral view. The aedeagus ( Fig. 83 ) has an elongate median lobe that is strongly tapered into the narrowly truncate pedon apex. The tectum is spearhead-shaped, elongate and pointed. The tegminal cap piece is finger-like with a relatively large fingernail-like apex bearing numerous short terminal setae. Endophallic bands are very short, linear and weakly defined.

Plant association. Fogged from the following tree species in Costa Rica: P. macroloba , G. meiantha , P. glabrum , M. guianensis , V. koschnyi and Eugenia sp.

Figures

Figure 47-58. Heads of Temnocerus species, frontal view, male left and female right. 47-48) T. rostralis n.sp., holotype and allotype. 49-50) T. rugosus n.sp., holotype and allotype. 51-52) T. salvensis n.sp., holotype and allotype; 53-54) T. tamaulipensis n.sp., holotype and allotype. 55-56) T. thesaurus (Sharp). 57-58) T. yucatensis 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 91-94. Distribution of Temnocerus species. 91) T. rugosus, red; T. obrieni, black; T. oaxacensis, blue; T. niger, green. 92) T. pseudaeratus, black; T. potosi, blue; T. cyaneus, green; T. oculatus, red. 93) T. pueblensis, red; T. pusillus, blue; T. regularis, black; T. salvensis, green. 94) T. tamaulipensis, red; T. thesaurus, blue; T. yucatensis, black.