Ceratoculicoides sp. F

Fasbender, Andrew, 2023, Revision of the New World Ceratoculicoides Wirth & Ratanaworabhan (Diptera, Ceratopogonidae, Ceratopogonini), European Journal of Taxonomy 875, pp. 159-202 : 192

Ceratoculicoides sp. F 2

Figs 6b , 12e

Diagnosis

Male

Currently unknown.

Female

Only species of Ceratoculicoides with the following combination of characters: femora brown, tibiae yellow, wing length ~ 0.9–1.1 mm; 2 major spermathecae, largest 70–75; medial margin of 9 th sternite deeply concave.

Material examined

COLOMBIA • 1 ♀; Magdalena, Sierra Nevada de Santa Marta National Park , El Ramo ; 10.8° N, 73.65° W; 15 Oct.–1 Nov. 2000; J. Cantillo leg.; CNCI • 1 ♀; Vichada, PNN Tuparro , Bosque Sabana ; 5.35° N, 67.85° W; 29 Nov.–8 Dec. 2000; W. Villalba leg.; CNCI .

Description

Female

MEASUREMENTS (n = 2): Head width 265–284; flagellomeres 25–31, 16–18, 19–22, 22, 23, 26–27, 26– 31, 26–32, 36–40, 42–47, 45–46, 42–47, 49–53; AR 1.13–1.17; FR 1.5–1.55; wing length 947–1043; wing width 368–388; costal ratio 0.57–0.58; spermathecal length 70–75; spermathecal width 65–72; spermathecal neck 14–16; spermatheca/neck ratio 0.2–0.21.

THORAX. Legs with femora brown, tibiae yellow.

GENITALIA ( Fig. 12e ). 9 th sternite anterior branch apex broadly rounded, touching medially; posterior branch rounded, nearly as wide as anterior branch, tip not tapering, rounded. 2 major spermathecae.

Distribution

Magdalena, Vichada ( Colombia) ( Fig. 13 ).

Remarks

Major spermathecae with a length between 70 and 80 μm are found only in this species and C.aliciae . Ceratoculicoides sp. F 2 differs from that species in the posterior branch of the 9 th sternite being obtusely rounded ( Fig. 12e ), vs acutely pointed in C.aliciae ( Fig. 11a ).

Figures

Fig. 6. Female heads I. a. Ceratoculicoidesconfusus sp. nov. b. Ceratoculicoides sp. F2 (Colombia). c. C. pacificus sp. nov. d. C.virginianus (Wirth, 1951). Scale bars = 100 μm.

Fig. 12. Female sternite 9 II. a. Ceratoculicoides pacificus sp. nov., paratype (CNCI), Carmanah Valley, British Columbia, Canada.b. C. pacificus paratype (CNCI), East Sooke Peak, British Columbia, Canada. c. C.virginianus (Wirth, 1951), Springwater Conservation Area, Ontario, Canada. d. Ceratoculicoides sp. F1, Tuparro National Park, Colombia. e. Ceratoculicoides sp. F2, Tuparro National Park, Colombia. f. Ceratoculicoides sp. F3, Rincon, Costa Rica. Linework has been added to make sternite 9 easier to discern. Scale bars = 100 μm.

Fig. 13. Distribution. a. Western North America. Solid star =Ceratoculicoides aliciae Huerta & Borkent, 2005; solid circles = C.borkenti sp. nov.; open triangles = C.grogani sp. nov.; open star = C. longipennis (Wirth, 1952); open square = C. pacificus sp. nov.; solid triangle = C.propinquus sp. nov.; solid cross C. sp. M1. b. Eastern North America. Solid circles = C. confusus sp. nov.; open squares = C.virginianus (Wirth, 1951). c. Central and northern South America. Solid circle = C.confusus; open squares = C. sp. F1; open triangles = C. sp. F2; solid triangle = C. sp. F3.

Fig. 11. Female sternite 9 I. a. Ceratoculicoides aliciae Huerta & Borkent, 2005, paratype, Chamela Biological Station, Jalisco, Mexico. b. C. borkenti sp. nov., paratype, Nogales, Arizona, USA. c. C. confusus Kouchibouguac National Park, New Brunswick, Canada. d. C.confusus, paratype, Great Smoky Mountains National Park, Tennessee, USA. e. C.grogani sp. nov., paratype, Corvallis, Oregon, USA. f. C.moravicus Bornova, Izmir, Turkey. Linework has been added to make sternite 9 easier to discern. Scale bars = 100 μm.