Spinalobus

Webb, Donald W., 2007, A new genus and new species of Nearctic Therevidae (Insecta: Diptera) from Southern New Mexico, Zootaxa 1495, pp. 41-46 : 42

Spinalobus gen . et spec. nov.

( Figs. 1–7 )

Type species Spinalobus rodmani Webb by original designation.

Etymology

Spina = Latin, thorn; lobus = Latin, a rounded projection, lobe. This genus is name for the large spinous macrosetae on the ventral lobe on the male genitalia. This species is named in honor of Dr. James E. Rodman, Program Director, Systematic Biology and Biodiversity Inventories, National Science Foundation for his energy and dedication in developing the NSF PEET Program.

The characteristics of this genus are given in the description of Spinalobus rodmani . Species included: rodmani Webb.

In “The Genera of Nearctic Therevidae ” ( Irwin and Lyneborg 1981a), Spinalobus keys out to couplet 23. The following is a modification of that couplet.

23. Frons in both sexes at least partly shiny. Male eyes holoptic. Small and slenderly built species, with slen- der antennae (Figs. 28, 29 in Irwin and Lyneborg 1981a) ........................................... Ozodiceromyia Bigot

- Entire frons in both sexes covered with pubescence. Male eyes dichoptic. Large, broadly built species with short, broad antennae........................................................................................................................23a

23a Proepimeron and metanepisternum glabrous. Cell m3 closed, petiolate. Basal lobe of costa lacking tuft of thickened pale setae. Hypandrium ( Fig. 2 ) strap-like. Gonocoxite ventral view ( Fig. 2 ) separated medially. Ventral lobe large with several large, elongate macrosetae ( Fig. 1 ).................................. Spinalobus Webb

- Proepimeron and metanepisternum setose. Cell m3 open. Basal lobe of costa with tuft of thickened pale setae. Hypandrium absent or fused to gonocoxite (Fig. 171 in Irwin & Lyneborg 1981a). Gonocoxite ventral view fused medially. Ventral lobe lacking large, elongate macrosetae ....................... Breviperna Irwin

Figures

FIGURES 1 – 7. Spinalobus rodmani. 1. tergite 8, epandrium, cerci, hypoproct, dorsal view. 2. sternite 8, hypandrium, gonocoxite, ventral view. 3. gonocoxite dorsal view. 4. aedeagus dorsal view. 5. aedeagus ventral view. 6. aedeagus, lateral view. 7. female reproductive organs. Scale = 0.1 mm. Abbreviations: C = cercus, CSpD = common spermathecal duct, DA = dorsal apodeme, EA = ejaculatory apodeme, Epa = epandrium, F = furca, Gx = gonocoxite, GxA = gonocoxal apodeme, Gs = gonostylus, Hpt = hypoproct, H = hypandrium, Dp = distiphallus, S 8 = sternite 8, Sp = spermatheca, SpS = spermathecal sac, T 8 = tergite 8, VA = ventral apodeme, VL = ventral lobe.