Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012

Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), Journal of Natural History 49 (3), pp. 155-209 : 169-170

Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012

( Figure 15C )

Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012b: 187 (male, female; Argentina); Borkent, 2014: 135 (in online World catalogue).

Diagnosis

The only Patagonian species of Stilobezzia (Acanthohelea) in which males have the sternite 9 with an elongate, slender posteromedian projection. Females scutum with 14 large and 13 thinner setae and the abdomen brown except the abdominal segment 8 heavily sclerotized.

Distribution

Argentina (Río Negro) ( Figure 20 ).

Types

Holotype male, allotype female, Argentina, Río Negro prov., Parque Nacional Nahuel Huapi, arroyo Ñireco (Complejo Challhuaco), 41°11 ′ 51.9 ″ S, 71°19 ′ 40 ″ W, 962 m, 20 December 2006 to 23 January 2007, J. Massaferro – A. Garre – F. Montes de Oca , Malaise trap ( MLPA). Other paratypes: 11 males, as follows: same data as holotype, 8 males; Parque Nacional Nahuel Huapi, mallin de los Patos, 41°15 ′ 48.6 ″ S, 71°17 ′ 50.3 ″ W, 1020 m; December 2006 to 23 January 2007, A. Garre – F. Montes de Oca , 3 males, Malaise trap.

Remarks

This species was described and illustrated in detail by Cazorla and Spinelli (2012b).

Figures

Figure 15. Male genitalia: (A) Stilobezzia (A.) curvistyla Cazorla and Spinelli (ventral view); (B) Stilobezzia (A.) curvistyla (dorsal view); (C) Stilobezzia (A.) longisternalis Cazorla and Spinelli (ventral view); (D) Stilobezzia (A.) nigerrima Ingram and Macfie (ventral view).

Figure 20. Distribution of Stilobezzia (A.) longisternalis, Stilobezzia (A.) estepae and Stilobezzia (A.) succinea.