Frutillaria propinqua Richards

Kits, Joel H. & Marshall, Stephen A., 2011, A revision of Frutillaria Richards and Penola Richards (Diptera: Sphaeroceridae: Archiborborinae), Zootaxa 2863, pp. 1-34 : 20

Frutillaria propinqua Richards

( Figs. 38, 39 , 110 )

Frutillaria propinqua Richards, 1964: 44

Only the paratype male of this species was available for examination. It is preserved in alcohol and is in poor condition. The antennae and all legs except the right hind leg are missing. The specimen is partially debristled and the colour is generally faded. Little can be said about external characters other than the patterns of microtomentum noted:

Head with shiny patches lateral to ocellar triangle. Mesoscutum and scutellum covered with microtomentum. Anepisternum with microtomentum along anterior, dorsal and posterior margins, shiny medially. Katepisternum with anterior shiny patch with a triangle extending posteriorly. Laterotergite mostly shiny. Sternite 2 shiny, sternites 3–5 with some apparent microtomentum medially. Tergites 1–5 extensively covered with microtomentum.

Male abdomen ( Figs. 38, 39 ): Surstylus with outer corner angular, slightly produced, inner arm long, curved, knobbed and toothed at tip. Postgonite bilobed, both lobes long. Basiphallus with well-developed epiphallus, preepiphallus very short, about ½ length of epiphallus. Distiphallus extremely complex, with a dorsal pair of flat, anteriorly curved horns at apex; components difficult to homologize.

Type material. Holotype 3: CHILE: [Aisén:] Lago de Bueno Aires, Rio Murta, about 46° S, 15 Jan 1956, [G. Kuschel] ( BMNH, apparently lost). Paratype: same data as holotype (1 m #, BMNH, examined).

Comments. The original description states that the paratype specimen is female, but this is incorrect. We have not seen any recently collected specimens of this species.

Figures

FIGURES 35 – 39. Frutillaria male genitalia. F. k u s c h e l i: (35) cerci and surstylus, posterior view, (36) surstylus, anterior view, (37) phallus and postgonite, lateral view; F. propinqua: (38) phallus and postgonite (phallapodeme omitted, basiphallus and distiphallus disarticulated).

FIGURES 108 – 115. Frutillaria and Penola distribution maps. (108) F. abdita, F. f u rc a t a, F. tenuiforceps, F. triangularis; (109) F. anticura, F. chepuensis, F. glabra, P. eudyptidis; (110) F. c o n t u l m o, F. calceata, F. chiloensis, F. propinqua; (111) F. calida; (112) F. edenensis; (113) F. k u s c h e l i, F. r i c ha rds i; (114) F. stenoptera; (115) F. transversa.