Dasyhelea carlae Díaz and Spinelli, 2014

Díaz, Florentina, Spinelli, Gustavo R., Donato, Mariano & Ronderos, María M., 2014, A taxonomic revision of the Patagonian species of the Dasyhelea mutabilis species group with a phylogenetic analysis of New World species (Diptera: Ceratopogonidae), Journal of Natural History (J. Nat. Hist.) 48 (35 - 36), pp. 2117-2175 : 2133-2135

publication ID	https://doi.org/ 10.1080/00222933.2014.909062
publication LSID	lsid:zoobank.org:pub:39D6AE31-36D1-4CBF-8C43-40050801ECAD
persistent identifier	https://treatment.plazi.org/id/0B8F8438-7460-4B12-8DE8-21769F9DEE37
taxon LSID	lsid:zoobank.org:act:0B8F8438-7460-4B12-8DE8-21769F9DEE37
treatment provided by	Felipe
scientific name	Dasyhelea carlae Díaz and Spinelli
status	sp. nov.

Treatment

Dasyhelea carlae Díaz and Spinelli sp. nov.

( Figures 3 View Figure 3 , 18C,D View Figure 18 , 21 View Figure 21 )

Diagnosis

Only species of Dasyhelea in Patagonia with the following combination of characters: male with posterolateral arm of aedeagus divided, bearing a mesolateral, short, blunt protuberance directed anterolaterally. Female with subgenital plate semicircular with straight posterolateral arms; legs brown, femora darkest and femorotibial joints dark.

Description of male. Similar to female with usual sexual differences. Antennal flagellum as in Figure 3A View Figure 3 . Palpus ( Figure 3B View Figure 3 ) pale brown; segment 3 bearing scattered sensilla on mesobasal surface; PR 4.20–5.25 (4.81, n = 10). Scutellum with 7–8 large, 2–3 thinner setae. Wing ( Figure 18D View Figure 18 ) length 0.78–0.96 (0.86, n = 9) mm, width 0.27– 0.36 (0.29, n = 9) mm; CR 0.39–0.43 (0.41, n = 9). Genitalia ( Figure 3C View Figure 3 ): tergite 9 tapering abruptly distally, produced beyond apex of gonocoxites, posterior margin straight, apicolateral process stout with one elongate subbapical seta; cercus with 4–5 setae, base broad; sternite 9 ( Figure 3D View Figure 3 ) 0.35 length of greatest width, posteromedian projection triangular. Gonocoxite stout, 1.85 × longer than greatest width; gonostylus 0.70 length of gonocoxite, stout, nearly straight with blunt rounded tip. Paramere and gonocoxal apodemes ( Figure 3E View Figure 3 ) forming an asymmetrical structure; left gonocoxal apodeme recurved distad, both apodemes fused with base of paramere; paramere moderately short, nearly straight, with blunt rounded tip. Aedeagus 0.93 length of greatest width, W/L ratio 1.72–2.18 (2.04, n = 10); anterior margin nearly straight, basal arms stout, subtriangular; posterolateral arms divided, inner portion with mesolateral, short, blunt, anterolaterally directed protuberance; posteromedian projection rectangular, elongate, with truncate tip, produced beyond inner posterolateral arm.

Description of female. Head dark brown. Eyes contiguous by width of 3–4 ommatidia. Antennal flagellum ( Figure 3F View Figure 3 ) pale brown; AR 0.73–0.99 (0.83, n = 7). Clypeus ( Figure 3G View Figure 3 ) with five pairs of setae. Palpus ( Figure 3H View Figure 3 ) pale; segment 3 with 2–3 subbasomesal capitate sensilla; PR 3.60–4.60 (4.02, n = 9).

Thorax. Scutum dark brown; scutellum paler with 7–8 large, 3–4 thinner setae. Legs brown, femora slightly darker, femorotibial joints darkish, tarsomeres 1–3 whitish, tarsomeres 4–5 slightly infuscated; apex of hind tibia with 7 spines; foreleg TR 1.90–2.30 (1.97, n = 9), midleg TR 2.00–2.17 (2.07, n = 9), hind leg TR 2.00–2.55 (2.14, n = 9). Wing ( Figure 18C View Figure 18 ) length 0.78–0.96 (0.88, n = 8) mm, width 0.33–0.42 (0.38, n = 9) mm; CR 0.39–0.42 (0.40, n = 9); membrane hyaline, covered with macrotrichia; radial cells obliterated; cubital fork at same level of anterior portion of second radial cell. Haltere pale brown.

Abdomen. Dark brown. Subgenital plate ( Figure 3I View Figure 3 ) semicircular, anterior margin of lumen deeply concave, posterior margin of lumen truncate, posteromedian projection semi-triangular; posterolateral arms slender, straight. Spermatheca ( Figure 3J View Figure 3 ) spherical, heavily sclerotized, diameter 60 µm, neck short, straight, hyaline, measuring 12 µm.

Distribution ( Figure 21 View Figure 21 )

Argentina (Neuquen, Río Negro, Chubut, Santa Cruz) .

Type material

Holotype male, Argentina, Chubut prov., 16 km southeast Paso del Sapo, 27/ 28 February 2001, G. Spinelli, sweep net ( MLPA); allotype female, Argentina, Santa Cruz prov., río Pinturas , 6 December 2002, G. Spinelli, sweep net ( MLPA) . Paratypes, 22 males, 16 females, as follows: same data as holotype 3 males, 1 female ( MLPA) ; same data as allotype 3 males, 2 females ( MLPA) . Neuquen prov., 40 km SO Zapala, laguna del Burro , 16 December 1996, G. Spinelli , 1 female, sweep net ( MLPA) . Río Negro prov., Parque Nacional Nahuel Huapi, arroyo León , 40°43′48″ S, 71°08′04″ W, 764 m, 12 December 2007 / 3 January 2008, Garré- Montes de Oca GoogleMaps , 1 female, Malaise trap ( MLPA) ; Parque Nacional Nahuel Huapi, río Minero , 40°41′23.5″ S, 71°17′33.2″ W, 832 m, 7/ 20 February 2008, Garré-Montes de Oca GoogleMaps , 1 male, Malaise trap ( MLPA) . Chubut prov., 16 km southeast Paso del Sapo , 28 February 2001, G. Spinelli , 2 males, 2 females ( MLPA) ; Los Altares , 20 February 1989, G. Spinelli , 3 males, 3 females ( MLPA) ; Colonia Sarmiento, Camping La Isla, brazo del río Senguer , 45°33′6.65″ S, 69°03′45.5″ W, 300 m, 23/ 24 February 2009, G. Spinelli GoogleMaps , 1 male, Malaise trap ( MLPA) . Santa Cruz prov., río Pinturas , 5 December 1996, G. Spinelli , 6 males, 3 females ( MLPA) , 1 male, 1 female ( BMNH) , 1 male, 1 female ( USNM) , 1 male, 1 female ( CNCI) , sweep net.

Etymology

This species is named after our colleague Dr Carla G. Cazorla, entomologist of the Museo de La Plata, in recognition of her valuable contributions to the taxonomy of Neotropical Ceratopogonidae .

Phylogenetic relationships

The phylogenetic relationships of this species are discussed in the description of the D. andensis .