Euscelidia tsavo, Dikow, 2003

Dikow, Torsten, 2003, Revision of the genus Euscelidia Westwood, 1850 (Diptera: Asilidae: Leptogastrinae), African Invertebrates 44 (2), pp. 1-131 : 112-113

Euscelidia tsavo sp. n.

Figs 46, 64A–D

Etymology: Noun in apposition that refers to the type locality Tsavo National Park, Kenya.

Diagnosis: The species is distinguished from congeners by the short appressed brown and grey pruinosity on the sct, leaving only three lateral spots apruinose, and by features of the ơ terminalia.

Description: Head: Black; fc silver pruinose, fc gib indistinct, mystax white, many macrosetae; prob and plp brown to black, setae white; oc tr silver pruinose dorsally; occ silver pruinose, setae white; Antennae - scp brown, white setae ventrally, white pruinose; ped brown, brown setae ventrally and dorsally, white pruinose; pped brown, white pruinose in proximal half and ventrally; apsel brown.

Thorax: Black; ppro peg large, silver pruinose; sct predominantly yellow pruinose, silver pruinose on margins, 2 circular antero-lateral spots, 2 triangular medio-lateral spots, and 2 triangular spots just posterior to trn sut apruinose, 2 narrow median stripes not reaching posterior margin sometimes apruinose too (not always distinct), short yellow and white setae on pruinose part; macrosetae: 1 white npl s, 1 black spal s; sctl silver pruinose, ds sctl s and sctl s short, brown; Legs - orange to brown; pro and meso fem yellow proximally, light brown distad, meta fem in proximal half pale yellow, clubbed, distal half of club brown, setae white; pro and meso tib light brown, pale yellow stripe anteriorly, meta tib proximally pale yellow, brown distad, pale yellow stripe not reaching tip anteriorly; first tar pale yellow, distad light brown, remaining tar brown, setae brown; emp minute; Wings - hyaline, but microtrichia scattered on remigium, margins, and along veins; ptero distinct, brown; cell d terminating in 2 veins; hlt light brown.

Abdomen: Black; T predominantly brown pruinose, anterior, lateral, and posterior margins grey pruinose, T 2 in proximal half grey and in distal half brown pruinose, T1 with brown setae, T 2 in proximal half with white setae laterally, remaining T with short yellow and brown setae, S grey pruinose; ơ terminalia Figs 64A–D - sur pointed distally, lobe ventrally; hypd bent upwards, divided into 2 lobes, sclerite just anterior to distal tip; d aed shea short, blunt; lat apod simple.

Type material - The ơ holotype is labelled ‘ KENYA Tsavo Mtito Andei 6.XII.1989 A. Freidberg & F. Kaplan / HOLOTYPE Euscelidia tsavo sp. nov. det. T. Dikow 2001 (red label)’. The specimen is double mounted (minuten in block of foam), is in excellent condition (ơ terminalia attached to specimens pin in micro vial), and is deposited in the NMSA.

A ơ paratype is labelled ‘ KENYA 20 mi. S. Mombasa 23–25.i.1968 Karl V. Krombein / PARATYPE Euscelidia tsavo sp. nov. det. T. Dikow 2001 (yellow label)’. The specimen is attached to a triangular piece of cardboard, is in excellent condition, and is deposited in the USNM . A ơ paratype is labelled ‘ RHODESIA Victoria Falls Nat’l. Park IV-3–6- 1968 [3–6.iv.1968] Paul Spangler / PARATYPE Euscelidia tsavo sp. nov. det. T. Dikow 2001 (yellow label)’. The specimen is double mounted (minuten in block of foam), is in very good condition, and is deposited in the USNM . 1^ 1ơ paratypes are labelled ‘ KENYA: Baringo #64 Lake Bogoria Nat. Res. 0011'N: 36 08'E 1100 m South end 21.xi.1992 J Londt & A Whittington Fig Tree camp site / PARATYPE Euscelidia tsavo

A B

D E F

G H I

A - D E - I

sp. nov. det. T. Dikow 2001 (yellow label)’. The specimens are double mounted (both specimens on one minuten in block of foam), are in very good condition, and are deposited in the NMSA.

Type locality and distribution (Fig. 46): Kenya , Tsavo National Park West , between Mtito Andei and Tsavo, 2 50'S 38 19'E. Kenya, Zimbabwe .

Figures

Fig. 64. ơ terminalia. A–D. Euscelidia tsavo sp. n. A. Dorsal. B. Ventral. C. Lateral. D. Aedeagus lateral. E–I. E. venusta sp. n. E. Aedeagus lateral. F. Hypandrium posterior. G. Dorsal. H. Ventral. I. Lateral. Scale lines = 1 mm.