Lichtwardtia dianaensis Grichanov, 2019

Grichanov, I. Ya., 2019, NEW SPECIES AND NEW RECORDS OF LICHTWARDTIA ENDERLEIN, 1912 (DIPTERA: DOLICHOPODIDAE) FROM TROPICAL AFRICA, Far Eastern Entomologist 387, pp. 7-32 : 15-17

Lichtwardtia dianaensis Grichanov , sp. n.

http://zoobank.org/NomenclaturalActs/ 5BD43001-F458-4171-87E1-F87ADEBD91DB

Figs 22 , 29 , 35, 36 , 43 , 53, 54 , 63

TYPE MATERIAL. Holotype – ♂, Madagascar: Province Antsiranana, Reserve Special d'Ankarana , 2.6 km E Andrafiabe, 12°57.523'S, 49°7.189'E, 4 – 6.I 2007, light trap, A.H. KirkSpriggs [ BMSA] . Paratypes: 9♂, 6♀, same label, Malaise trap or light trap [ BMSA] .

DESCRIPTION. Male. Head. Frons metallic greenish blue, weakly pollinose; face mostly metallic bluish green, often with copper reflection (anterior view), white pollinose along lateral and ventral margins of clypeus; one strong vertical, one short postvertical, a pair of strong ocellar setae present; lower postocular setae white; ventral postcranium with 2 long black setae and several light cilia; eyes with short hairs; face glabrous; face almost parallelsided, narrowest at upper third, slightly widening at clypeus; clypeus with small triangular projection ventrally in middle, slightly bulging, not reaching lower margin of eyes; ratio of its minimal width to height 15/45; antenna yellow; postpedicel yellow-grey in distal half,

subtriangular, as long as high, right-angular apicodorsally, with short hairs; arista-like stylus middorsal, yellow-brown, sparsely pubescent, with hairs 2-4 times longer than basal diameter of stylus; length ratio of scape to pedicel to postpedicel to stylus (1st and 2nd segments),

13/8/ 16/12/44; palpus and proboscis yellow, with short light hairs; palpus slightly enlarged,

with 1 short seta.

Thorax. Mesonotum metallic dark-blue-violet, weakly brownish pollinose; pleura greenish-

black, whitish pollinose; 5 strong dorsocentral setae with several microscopic hairs in front of the 1st pair, 2 rows of short acrostichals; proepisternum with 1 strong black seta above fore coxa and several short hairs; scutellum with 2 strong setae and 2 very short lateral hairs.

Legs mostly yellow; fore coxa yellow, mid coxa black, hind coxa yellow-brown; apical segments of fore tarsus brown; mid and hind tarsi black from tip of basitarsus; femora without long hairs; fore coxa with black hairs and several long apical setae; fore tibia with 1 minute anterodorsal, 1 posterior seta, about as long as diameter of tibia, 1 short and 1 long and fine posteroventral apical setae; fore tarsus simple, fore basitarsus with short basoventral seta;

mid femur with 1 subapical anterior seta; mid tibia with 2 anterodorsal, 2 posterodorsal, 1

anteroventral and 5 apical setae; hind femur with one anterodorsal prepapical seta; hind tibia simple, with 3-5 anterodorsal, 3 posterodorsal, 1 row of short ventral, 2-3 apical setae; hind basitarsus with 1 basoventral, 1 apical short setae, 1 strong dorsal seta, nearly half as long as basitarsus. Tibia and tarsomere (from first to fifth) length ratio: fore leg: 86/40/19/14/8/12,

mid leg: 115/58/28/24/16/14, hind leg: 123/46/51/29/24/18.

(Bezzi); 29 – L. dianaensis sp. n.; 30 – L. minuscula (Parent) ; 31 – L. musolini sp. n.; 32 – L.

nikitai sp. n.; 33 – L. oromiaensis sp. n.

Wing evenly greyish; costa simple; R 1 reaching to first third of wing; R 2+3 and R 4+5

straight, slightly divergent at apex; ratio of part of costa between R 2+3 and R 4+5 to this between R 4+5 and M 1+2, 30/23; M 1+2 broken in middle of distal part, joining costal vein just before wing tip; R 4+5 and distal part of M 1 parallel; crossveins m-m and dm-m straight, almost perpendicular to corresponding longitudinal veins; ratio of distal part of M 1 to m-m to distal part of M 1+2 to dm-m to distal part of M 4, 83/9/41/30/33; anal vein distinct, almost reaching to wing margin; anal lobe well developed; anal angle obtuse; lower calypter yellow, with black setae; halters yellow.

Abdomen metallic bronze-black, grey pollinose, with black hairs and marginal setae; 8th

segment black, with sparse black hairs; epandrium black, enlarged, nearly as long as 1st-6th

tergites combined, 2 times longer than high, swollen basally, slightly narrowed distad, convex ventrally, rounded distally; hypandrium basoventral, narrow, half as long as epandrium, without teeth; phallus thin and long, with 2 rather small teeth at apex; one small epandrial seta at base of hypandrium; epandrial lobe small, fingerlike, with 2 apical setae; surstylus yellow,

bilobate; ventral lobe narrow, fingerlike, with 1 thick spine and 2 simple setae; dorsal lobe of surstylus broad, longer than ventral, as long as cercus, with apicoventral and apicodorsal projections and distal emargination, with several short subapical setulae; postgonite short,

narrow, shorter than surstylus; cercus yellow, narrowly black along margin, very small,

rounded-oval, wider than long, with distodorsal emargination, with straight white cilia not longer than diameter of cercus.

MEASUREMENTS (in mm). Body length 2.9; antenna length 0.7; wing length 2.9; wing width 1.0; hypopygium length 1.3.

Female. Similar to male except lacking MSSC. Face mostly metallic blue, grey pollinose on clypeus; palpus yellow, with brown and yellow hairs. Podomeres (from tibia to fifth tarsomere) length ratio: fore leg: 94/45/18/14/11/13, mid leg: 125/64/33/25/18/14, hind leg:

140/50/51/33/26/22.

DISTRIBUTION. Madagascar.

ETYMOLOGY. The name of the species belongs to the Diana Region of Madagascar at the most northerly part of the Island including the type locality for the new species .

DIAGNOSIS. The new species is remarkable in bearing long and fine posteroventral apical seta on fore tibia (MSSC). Having mostly metallic male face, it keys to L. nigrotorquata ,

differing in cercus with distodorsal projection covered with short white cilia (see key above).

Femora and tibiae yellow; lower postoculars white; hind tarsus simple; wing evenly greyish,

without spots; distoventral epandrial lobe fingerlike; hypandrium without tooth.

Figures

Figs 21–27. Lichtwardtia spp., hypopygium after maceration, left (21–26) and right (27)

Figs 28–33. Lichtwardtia spp., male cercus after maceration, outer view. 28 – L. aethiopica

Figs 34–41. Lichtwardtia spp., details of hypopygium, left lateral view. 34 – L. aethiopica

Figs 42–46. Lichtwardtia spp., male habitus. 42 – L. aethiopica (Bezzi); 43 – L. diana-

Figs 52–57. Lichtwardtia spp., male head. 52 – L. aethiopica (Bezzi); 53, 54 – L. diana-

Figs 62–69. Lichtwardtia spp., male wing (62–68) and hypopygium (69). 62 – L. aethi-