Deuterothynnus parallelus, Brown, 2005

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 : 207-208

Deuterothynnus parallelus sp. n.

( Figures 5, 6 , 15 , 59 )

Material examined. HOLOTYPE: „. Indonesia: Irian Jaya: Port Freeport Concession, Wapoga camp, 3.14 ° S, 136.57 ° E, Malaise trap, montane primary rainforest, 1158 m (3800 ft), 19–29 April 1998, R. R. Snelling, in LACM.

Distribution. Known only from montane rainforest, Wapoda, Irian Jaya ( Figure 59 ).

Etymology. The specific name is Latin for parallel, and is a reference to the shape of the basiparameres viewed dorsally.

Diagnosis. Male: metasoma unicolorous, black. Margins of basiparameres (viewed dorsally) subparallel ( Figure 6 ). Apical filament of aedeagus curved (but not convoluted) and slightly longer than the length of the parameres ( Figures 5, 6 ).

Description. Male: black; apex of clypeus, anterior margin of pronotum (discontinuous medially), disc of metanotum, yellow; wings weakly infuscate, veins brown; setae white. Clypeus closely and finely punctate, apically truncate, sagittally carinate. Frons and vertex rugosely punctate. Gena finely rugosely punctate, short and subparallel, less than quarter length of minimum eye diameter. Occipital carina visible dorsally. Genal cavity not visible dorsally. Pronotum including anterior surface and mesoscutum rugosely punctate. Mesoscutellum closely punctate. Metanotum impunctate. Propodeum closely to rugosely punctate. Mesopleura rugosely punctate. T1–6 almost impunctate; T7 closely and coarsely punctate, medially impunctate; T1 with length: width 2.5:1. S1 shallowly and sparsely punctate; S2–8 almost impunctate but becoming punctate posteriorly especially on posterior sternites. Hypopygium ( Figure 15 ) subparallel, broadly emarginate apically with large apical spine and smaller preapical spine laterad to emargination, weakly sclerotized medially. Genitalia ( Figures 5, 6 ) with parameres broad and subparallel, dorsal margin curved, ventral margin sinusoidal, apex broadly rounded and down-turned, ending beyond apex of aedeagus; basiparameres in dorsal view subparallel over most of length, extreme base constricted, apex not distinctly separated from aedeagus, apparently deeply emarginate and ending before the level of apices of cuspides, narrow in lateral view; aedeagus with basal and apical sections, basal section short and swollen without ventral lobes, apical section very long and filamentous, as long as length of parameres. BL: 8; FW: 6; HW: 4.

Figures

Figure 59. Distribution of Deuterothynnus spp. and Heligmothynnus spp. (note the coincident collecting of D. fulvicentratus with H. microspinus, and D. fulvisetatus with D. parallelus).

Figures 5–12. Deuterothynnus spp., male genitalia, lateral and dorsal views. (5, 6) D. parallelus. (7, 8) D. insularis. (9, 10) D. fulvisetatus. (11, 12) D. fulvicentratus. a, Aedeagus; b, right basiparameres; c right cuspis; p, right parameres; r, basal ring. Scale bars: 0.25 mm.

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