Temnocerus tamaulipensis, Hamilton, 2010

Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 38-39

Temnocerus tamaulipensis , new species

( Fig. 53, 54 , 84 , 94 )

Type locality. Mexico, Tamaulipas, 19 mi. NE Tula

Type depository. Charles W. O’Brien collection ( CWOB)

Type specimens. Holotype male and allotype with the following data: Mexico , Tam., Hwy. 101, 19 mi. NE Tula, 6200‘, 23 July 1982, CW & L O’Brien & G. Wibmer . Paratypes as follows: MEXICO: 11 males and 6 females, Tam., Hwy. 101, 19 mi. NE Tula , 23 July 1982, 6200’, CW & L. O’Brien & G. Wibmer ; 2 females, Mexico, Hwy. 101, 18 mi. SW Cd. Victoria , 4300’, 22 July 1982, C. W. & L. O’Brien & G. Wibmer ; 1 male and 3 females, Yucatan, ca. 5 km S Progreso , 26 October 1984, W.E. Clark ; 1 female, Ver [Veracruz], 22 mi SE Jalapa, Dec. 26, 1963, 900’, C.W. O’Brien ; 1 female, Tamaulipas, along road to Rancho de Cielo. W Gomez Farias , I-2-1981, coll. E.G. Riley ; 1 female, Veracruz, 21 mi W Orizaba , 4 Sept. 1974, G. Bohart & W. Hanson ( CWOB). 1 female, Nuevo Leon, 23.6 mi. SW Linares, July 3, 1974, Clark, Murray, Ashe, Schaffner ( TAMU) .

Description. Color and pubescence: The body is blackish throughout with a faint rosy luster. The pubescence is inconspicuous and composed of short, fine reclinate brownish-white setae. Size: Male (n = 13) 1.4 × 0.6 mm to 2.0 × 0.8 mm; Female (n = 16) 1.6 × 0.9 mm to 2.1 × 0.8 mm. Head subquadrate, about as long as wide, moderately punctured; punctures small, round; interspaces minutely granulose; frons wide, twice as wide as width of rostrum at base, with some long whitish setae; eyes large, strongly protuberant. Rostrum short; sides subparallel, widened only slightly at apex, moderately to densely punctured; mid-dorsal 1/3 smooth, shiny. Antenna inserted near basal 1/3 of rostrum; scape and funicular segment 1 ovoglobose, subequal in length; funicular segment 1 more robust; funicular segments 2-5 narrow, oval; 3-5 subequal in length; segment 2 more clavate, slightly longer than segments 3-5; segments 6-7 subequal, short, bead-like; club abrupt; basal and middle segment subequal in length; middle segment transversely rectangular; basal segment narrowed at base; terminal segment longer than basal or middle segment, apically acuminate, apex broadly rounded. Pronotum slightly longer than wide, widest just behind middle, densely punctured; interspaces minutely granulose. Scutellum small, inconspicuous, subquadrate. Elytra about twice as long as pronotum, widest near middle; humeri simple; striae deeply impressed, subquadrate, similar throughout; intervals narrow, weakly raised, with single row of setigerous punctures; interspaces between striae with single setigerous puncture. Thoracic pleura and sterna densely set with setigerous punctures. Abdominal ventrites moderately punctured; punctures small, round, setigerous.

Distribution. Specimens were collected from the Mexican states of Nuevo Leon, Tamaulipas, Veracruz and Yucatan ( Fig. 94 ).

Etymology. The specific epithet is derived from the Mexican state of Tamaulipas.

Comments. Temnocerus tamaulipensis is closely related to T. abdominalis . The rosy luster and less dense punctation of the head, pronotum and abdomen distinguish it from T. abdominalis . The tegminal cap piece of the aedeagus has long setae in both species ( Fig. 59 and 84 ). The aedeagus ( Fig. 84 ) has a short tapered median lobe with a truncate pedon apex. The tectum is spatulate with a narrow base. The tegminal cap piece is finger-like with a terminal cluster of long setae. Endophallic bands are very short and weakly defined.

Plant association. Unknown.

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.