Corethrella (Corethrella) longituba Belkin, Heinemann & Page, 1970

Amaral, André P., Mariano, Rodolfo & Pinho, Luiz Carlos, 2023, Description of five new species of frog-biting midges (Diptera, Corethrellidae) from Brazil and examination of new morphological characters with utility for taxonomic and phylogenetic studies, European Journal of Taxonomy 874 (1), pp. 1-120 : 79-80

Corethrella (Corethrella) longituba Belkin, Heinemann & Page, 1970

Fig. 38 ; Appendix 1

Material examined

BRAZIL – São Paulo State • 1 ♂, adult; Campos do Jordão, Córrego Canhambora ; 22°41ʹ44ʺ S, 45°29ʹ30ʺ W; 1538 m a.s.l.; M. Spiez leg.; 4 Oct. 2005; light sheet; CE-MHS .

Description

Male adult (n = 1)

HEAD. Sensilla ( Fig. 38A ): Ocular row with 1 thick offset seta at ventral part, 12 setae shortly extending posteriorly. Subocular row not well-defined; vertex with about 15 scattered setae. Postgenal row with 5 slender setae on mid-posterior portion of head. With 2 thick ventromedial setae.

THORAX. Sensilla ( Fig. 38B ): Antepronotum with 4 slender lateral setae. Postpronotum with 1 thick dorsal and 2 slender posterior setae.Scutum, prescutal area with 2 thick and 1 intermediate setae vertically aligned near prescutal suture, 3 slender setae more dorsally; group of 7 slender setae anteriorly. Antealar area with group of 10 thick/intermediate and 6 slender setae ventrally; 10 slender setae dorsally located. Supraalar area with 2 thick setae, with 4 slender setae surrounding. Dorsocentral row, posterior part with group of 4 thick offset setae; about 28 thick/intermediate and 25 slender completing row. Scutellum with 11 thick setae. Posterior anepisternum without setae. Anepimeron with 10 slender setae.

WING. R 3 /R 1: 0.43; R 2+3 /R 2: 0.74.

LEGS. Empodium ( Fig. 38C ) of intermediate length, slender, with 3 branches. Ta1/Ta2: 3.33; Ta3/Ta4: 0.53.

Distribution and biology

This specimen has previously been recorded in Amaral et al. (2019). It was collected with a light trap near a stream in an area of Araucaria moist forest in Campos do Jordão State Park, São Paulo. The altitude recorded was 1538 m a.s.l.

This species is otherwise known from the Bahamas, Cayman Islands, Jamaica, Dominican Republic, and Puerto Rico at altitudes ranging from 1 to 150 m a.s.l. ( Borkent 2008).

Remarks

The individual differs from the description by Borkent (2008) in the presence of one sensillum coeloconicum on flagellomere IX.

Figures

Fig. 38. Corethrella longituba Belkin, Heinemann & Page, 1970, male adult. A. Cranial setae, anterior and posterior views, and clypeus in anterior view. B. Thoracic setae, lateral view. C. Hind leg claw and empodium, lateral view.