New Neotropical Culicoides and redescription of Culicoides reticulatus Lutz (Diptera: Ceratopogonidae) Author Santarém, Maria Clara Alves Author Trindade, Rosimeire Lopes Da Author Silva, Tiago Do Nascimento Da Author Castellón, Eloy Guillermo Author Patiu, Cátia Antunes De Mello Author Felippe-Bauer, Maria Luiza text Zootaxa 2014 3795 3 255 274 journal article 45809 10.11646/zootaxa.3795.3.2 2bcd6ed0-4654-46e4-b143-b4be68096725 1175-5326 231263 2A90C789-0A57-4905-9253-F00DD530E340 Culicoides irregularis Santarém, Felippe-Bauer & Castellón sp. nov. Figs. 5 A–F; Fig. 9 Diagnosis . Female: This species is easily distinguished by the following combination of characters: palpus 3rd segment with a multiple, shallow, irregular sensory pit; PR 2.0–2.9; moderately long proboscis; mandible with 16 teeth; two unequal ovoid spermathecae. FIGURE 5. Culicoides irregularis sp. nov. , female. A. Wing; B. Eyes separation, anterior view; C. Antenna; D. Fore-, mid- and hind legs (left to right); E. Spermathecae; F. Palpus. Female. Head. Brown. Eyes bare ( Fig. 5 B), narrowly separated, smaller than ½ ommatidium. Pedicel brown, flagellum pale brown, first eight flagellomeres paler on proximal ½; AR 1.04–1.25 (1.12, n= 24) ( Fig. 5 C); sensilla coeloconica on flagellomeres 1,6–8; two on 1, three on 6–7 and three - four on 8. Palpus ( Fig. 5 F) brown, 3rd segment swollen with a multiple, shallow, irregular sensory pit in ventral, dorsal and lateral side of segment; PR 2.0–2.9 (2.6, n=31). Proboscis moderately long; P/H ratio 0.80–0.94 (0.84, n=28); mandible with 16 teeth. Thorax. Dark brown. Scutum without distinct pattern in slide mounted specimens. Wing ( Fig. 5 A) with contrasting pattern: second radial cell including dark spot, pale spot over R-M extending from M1 to the costal margin, subdivided; r3 with four small and separated pale spots: first, rounded, between the second radial cell and M1; second, poststigmatic, extending behind second radial cell, abutting wing margin; third, rounded, in middle of cell; fourth, distal pale spot slightly reaching wing margin; m1 with two pale spots, the distal one far from wing margin; m2 with four pale spots: one proximal, two between the medial and mediocubital forks, a distal one not reaching wing margin; cua1 with a rounded pale spot in the middle of cell; anal cell with a basal pale area and a pale spot near mediocubital forks; wing base with a pale spot on M; M1,M2 and CuA1 with pale apex; macrotrichia scarcely distributed on the distal third of wing; wing length 0.85–1.05 (0.98, n=31) mm; breadth 0.37–0.47 (0.44, n=31) mm; CR 0.58–0.68 (0.65, n=31). Halter knob brown in middle, stem pale. Legs ( Fig. 5 D) mostly brown; femora with subapical pale bands, tibiae with subbasal pale bands; hind tibia pale apically; hind tibial comb with four spines, the one nearest the spur longest. Abdomen. Brown. Two unequal ovoid spermathecae ( Fig. 5 E), measuring 48.2 µm (n=25) by 37.5 µm (n=25) and 39.5 µm (n=23) by 33 µm (n=23), with sclerotized ducts measuring 7.5 µm (n=20); long, slender, rudimentary third spermatheca present (17.2 µm); slightly sclerotized ring present (7.5 µm). Male . Unknown. Type data and depository . Holotype female, BRAZIL , Roraima, Maracá, 26.VI.1987 , CDC light trap, "mata 1m ", E. Castellon & S. Gomes cols. ( CCER ); paratypes 32 females , same data except: three (2 CCER ; ILMD ); three, "mata 10 m " (2 CCER ; MNRJ ); three, 15.VIII.1987 , "mata 5m " (2 ILMD ; CCER ); one, 30.VII. 1987 "mata 10m " ( CCER ); one, "mata 5m " ( CCER ); one, 24.VI.1987 ( ILMD ); two, 24.VII.1987 "mata 5m " ( CCER ; ILMD ); one, 24.V.1987 "mata 5m " ( ILMD ); one, 25.VI.1987 "mata 5m " ( CCER ); one, 25.VII.1987 ( ILMD ); one, 25.VI. 1987 "mata 10m " ( ILMD ); one, 21.V.1987 ( CCER ); one, 17.VI.1987 ( ILMD ); one, 16.VI.1987 ( CCER ); one, 23.VI.1987 "mata 5m " ( CCER ); one, 23.VII.1987 "mata 5m " ( ILMD ); one, 27.VII.1987 ( CCER ); one, 27.V.1987 "mata 5m " ( ILMD ); one, 27.V.1987 "mata 10m " ( ILMD ); one, 28.VII.1987 ( CCER ); two, 22.VI. 1987 "mata 10m " ( ILMD ); one, 31.VIII.1987 ( ILMD ); one, 31.VIII.1987 "mata alagada" ( ILMD ); one, Rio Pardo, Amazonas, 21- 22.VI.2010 , "peridomicilio", CDC light trap, F. Pessoa col. ( ILMD ). Distribution and bionomics . This species is restricted to Brazilian states of Roraima and Amazonas ( Fig.9 ). It was associated with forest environments far from coastal regions. Etymology. The name of this species is related with the irregular sensory pit present in third palpal segment (Latim—irregulare = irregular).