Tachyphron triangularus Brown, 1995

Brown, G. R., 2005, A revision of Tachyphron Brown and description of two new genera within the Ariphron group (Hymenoptera: Tiphiidae), Journal of Natural History 39 (2), pp. 197-239 : 236

Tachyphron triangularus Brown, 1995

( Figure 60 )

Tachyphron triangularus Brown, 1995b: 245 .

Material examined. HOLOTYPE: „. Australia: Northern Territory: Kakadu National Park, ca 1 km S of Arnhem Hwy on Pine Ck Road, mercury vapour light, 25–30 May 1980, M. B. Malipatil, in NTM. PARATYPE: 1 „, Meri camping area, Kakadu National Park , 12 ° 259S, 132 ° 579E, 21 January 1993, 40 m, G. and A. Daniels, in UQIC.

Distribution. Known only from Kakadu National Park, Northern Territory ( Figure 60 ).

Diagnosis. Male: aedeagus apically swollen with apex acute in profile and paired preapical lobes on ventral margin digitate and divergent (see Brown 1995b: Figures 13, 14 ). Hypopygium with apical spine triangular and widely separated from smaller lateral spines (see Brown 1995b: Figure 2 ). Gena half length of minimum eye diameter.

Figures

Figure 60. Distribution of Tachyphron spp. (rarer species).

Figures 13–16. Deuterothynnus spp., male hypopygia. (13) D. fulvicentratus. (14) D. fulvisetatus. (15) D. parallelus. (16) D. insularis. Scale bar: 0.25 mm.

Figures 1–4. Tachyphron spp. and Heligmothynnus sabronensis. (1) T. subtriangularus, male gena. (2) T. aculeatus, male habitus. (3) H. sabronensis, male gena. (4) T. subtriangularus, female habitus. Scale bars: 1 mm.