Downeshelea costaricensis, Santarém & Borkent & Spinelli & Felippe-Bauer, 2018
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publication ID |
https://doi.org/ 10.1080/00222933.2018.1437231 |
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publication LSID |
lsid:zoobank.org:pub:9FC2A016-1295-4047-877E-BC9030BD2BD2 |
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persistent identifier |
https://treatment.plazi.org/id/C0E8796E-79D2-4B2A-80F2-3F4869691989 |
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taxon LSID |
lsid:zoobank.org:act:C0E8796E-79D2-4B2A-80F2-3F4869691989 |
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treatment provided by |
Felipe |
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scientific name |
Downeshelea costaricensis |
| status |
sp. nov. |
Downeshelea costaricensis sp. nov.
( Figures 3a–h View Figure 3 , 8f–g View Figure 8 , 10 View Figure 10 )
Diagnosis
Male. The only species of Downeshelea in the Americas with the following combination of features: gonostylus 0.58–0.66 length of gonocoxite; parameres fused for 0.29–0.34 of total length; stem broad, sinuous, expanded apicolaterally, distal portion slightly curved ( Figure 8g View Figure 8 ); aedeagus subrectangular, hyaline on midportion, basal arch U-shaped, extending to 0.22–0.26 of total length ( Figure 8f View Figure 8 ).
Female. The only species of Downeshelea multilineata group in the Americas with medium-sized wing (1.02–1.15 mm) ( Figure 3d View Figure 3 ); midtarsomere 1 with 4–5 ventral spines; hind tibia uniformly brown; two subequal spermathecae ( Figure 3h View Figure 3 ).
Description
Male. Head. Eyes slightly contiguous in lower area, antennal ratio 0.90–0.99 (0.95, n = 10); palpal ratio 1.83–2.80 (2.31, n = 10) ( Figure 3b View Figure 3 ).
Thorax. Brown, without definite pattern in slide-mounted specimens. Wing ( Figure 3a View Figure 3 ) with greyish spot over CuA 1, CuA 2 extending into cua 1, anal cell, reaching wing margin; 2 nd radial cell 2.3 times longer than 1 st; wing length 0.95–1.10 (1.06, n = 10) mm; breadth 0.35–0.40 (0.37, n = 10) mm; costal ratio 0.68–0.77 (0.74, n = 10). Halter pale with distal portion of knob darker. Legs ( Figure 3c View Figure 3 ) brown, fore-, mid- tibiae slightly paler on basal portion, hind femur darker on distal third. Fore-, hind tarsomere 1 with one basal, one apical spine; midtarsomere 1 with two basal, two apical, 4–5 other ventral spines; apical spines of tarsomeres 2–4 of fore-, mid-, hind legs: 1–1–1, 2–2–2, 1–1–1; fore tarsal ratio 2.15–2.40 (2.27, n = 10), mid tarsal ratio 2.33–2.74 (2.55, n = 10), hind tarsal ratio 2.00– 2.17 (2.06, n = 10); claws 0.33–0.46 (0.40, n = 10) length of their respective tarsomere 5.
Abdomen. Dark brown. Terminalia ( Figure 8f View Figure 8 ): tergite 9 with quadrate apex, apicolateral process elongate, slender; sternite 9 straight anteriorly, posterior margin with moderately convex median lobe bearing 4–5 long setae. Gonocoxite 1.71–2.50 (2.27, n = 10) times longer than basal width; gonostylus 0.58–0.66 (0.62, n = 10) length of gonocoxite. Parameres ( Figure 8g View Figure 8 ) 0.93–1.05 (0.97, n = 10) times longer than aedeagus, fused for 0.29–0.34 (0.30, n = 10) of total length; knob bulbous; stem broad, sinuous, expanded apicolaterally; distal portion slightly curved, 0.66–0.80 (0.74, n = 10) of total length. Aedeagus subrectangular, strongly sclerotised, hyaline only on midportion, basal arch U-shaped, extending to 0.22–0.26 (0.24, n = 10) of total length; distal portion with deep mesal excavation terminating in two strong pointed, serrate processes.
Female. Similar to male with usual sexual differences; antennal ratio 0.97–1.12 (1.04, n = 8) ( Figure 3g View Figure 3 ); palpus as in Figure 3e View Figure 3 , palpal ratio 1.83–2.40 (2.03, n = 8); mandible with 10 teeth. Wing as in Figure 3d View Figure 3 ; wing length 1.02–1.15 (1.09, n = 8) mm; breadth 0.40–0.47 (0.43, n = 8) mm; costal ratio 0.78–0.82 (0.80, n = 8). Fore, hind tarsomere 1 with one basal and one apical spine; midtarsomere 1 with two basal, two apical, 4–5 other ventral spines; apical spines of tarsomeres 2–4 of fore-, mid-, hind legs: 1–1–1, 2–2–1, 1–1–2; fore tarsal ratio 2.18–2.52 (2.35, n = 8), mid tarsal ratio 2.40–2.90 (2.65, n = 8), hind tarsal ratio 2.13–2.44 (2.22, n = 8); fore-, mid- leg claws 0.50–0.75 (0.63, n = 8) length of their respective tarsomeres 5; hind leg claw about 0.89–1.20 (1.07, n = 8) as long as tarsomere 5 ( Figure 3f View Figure 3 ). Abdomen with genital sclerite elongated, tapering to rounded tip. Two subequal spermathecae ( Figure 3h View Figure 3 ), measuring 45–55 (50, n = 7) by 40–42.5 (42, n = 5) µm and 43–50 (48, n = 7) by 35–45 (40, n = 6) µm. Third rudimentary spermatheca of nearly 7.5 µm.
Specimens examined
Holotype male adult, labeled ‘ Holotype Downeshelea costaricensis Santarém, Borkent, Spinelli and Felippe-Bauer , COSTA RICA, Guanacaste, Nosara, R. Privada Nosara, Estación , 5m, 15 June 2004, D. Briceno col, red de barrido. LN217060 352800 #77328’ ( MNCR); allotype female adult, labeled ‘ Allotype Downeshelea costaricensis Santarém, Borkent, Spinelli and Felippe-Bauer , COSTA RICA, Guanacaste, Nandayure , Manglar Jabilla. 05m. 23 June 2004, D. Briceno, M. Moraga cols, Red Noyes. LN198600 394500 #77424’ ( MNCR) . Paratypes labeled as follows: 4 males, 4 females, same data as holotype (1 male, 1 female CCER; 2 males, 2 females MNCR; 1 male, 1 female CNCI); 2 males, 4 females, same data except ‘ Río Nosara’ ( MNCR); 1 male, 5 females, same data except ‘ Red Noyes’ ( MNCR); 7 females, same data except ‘ Desembocadura Rio Nosara , Red de golpe, Y . Cardenas. ’ ( MNCR) ; 2 males, same data except ‘ 13–17 June 2004, Malaise, B . Gamboa, D. Briceno, M. Moraga, Y. Cardenas’ ( MNCR); 5 females, same data as allotype (3 MNCR, 2 CNCI); 1 female, same data except ‘ 19–24 June 2004, Malaise, Porras, Gamboa, Briceno, Moraga, Cardenas’ ( MNCR); 1 female, ‘ Guanacaste, Refugio Vida Silvestre Ostional, Playa Ostional , 5m, 13 June 2004, light trap, Gamboa, D . Briceno, M. Moraga, Y. Cardenas’ ( MNCR); 1 female, ‘ Limón, Parque Nacional Cahuita, Sector Puerto Vargas , frente a casa administrativa, 5m, 17 May- 18 June 2002, Malaise, E . Rojas’ ( MNCR); 2 males, 1 female, ‘ Puntarenas, Camaronal, Puesto MINAE, 5m, 19–24 June 2004, Malaise, Cardenas, Gamboa, Porras, Briceno, Moraga’ ( MNCR); 1 female, ‘ Puntarenas, Tarcoles , 01 July 1993, A . Borkent col .’ ( CNCI); 1 male, same data except ‘ 2 km Tivives, 24 August 1993 ’ ( CNCI); 2 males, ‘ Puntarenas, Parque Nacional Manuel Antonio , 17 July 1993, A . Borkent’ ( CNCI); 1 male, 1 female, ‘ Puntarenas, Golfito, Mano bonito, mangrove, 50–100m, 22–29 April 2004, Malaise, Porras, Gamboa, Briceno, Moraga’ ( CCER) .
Distribution and bionomics
This species is restricted to Costa Rica (Guanacaste, Limón and Puntarenas provinces) ( Figure 10 View Figure 10 ) . It has been found in coastal and mangrove areas in Costa Rica from 5 m to 100 m above sea level .
Etymology
This species is named after Costa Rica, the country from which the described specimens were collected.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.