Archellerenius, Wanat, 2013

Wanat, Marek, 2013, The Apionidae (Coleoptera: Curculionoidea) of New Caledonia. Genera Archellerenius gen. nov. and Hellerenius Wanat, Zootaxa 3717 (4), pp. 515-542 : 541

Key to species of Archellerenius and Hellerenius

1. Body length up to 3.0 mm. Rostrum in both sexes at most 1.30× as long as pronotum, less than 4.5× as long as broad. Elytra polished. Last abdominal ventrite simple, gently convex. Penis evidently asymmetrical ( Fig. 34 ). Ovipositor broadly triangular ( Fig. 32 ). Genus Archellerenius gen. nov..................................................... A. giustoi sp. nov.

-. Body larger, 3.4–6.5 mm. Rostrum in male at least 1.35×, in female 1.8× as long as pronotum, its length/width ratio at least 5.0 in male, 6.5 in female. Elytra weakly shiny to completely matt. Last abdominal ventrite with outstanding modifications. Penis symmetrical. Ovipositor narrow, parallel-sided. Genus Hellerenius Wanat. ....................................... 2

2. Body length over 6.0 mm. Elytra dull black, with shagreened and completely matt intervals well contrasting with shiny and shallow striae. Rostrum in male over 1.7×, in female over 2.6× as long as pronotum................ H. monteithi sp. nov.

-. Body length less than 5.0 mm. Elytra with variably colored metallic tinge. Rostrum in male at most 1.6×, in female less than 2.2× as long as pronotum............................................................................... 3

3 Body length 4.0– 4.6 mm. Elytra bluish, highly convex, somewhat angulate on top in profile ( Fig. 47 ); intervals with irregular transverse furrows or wrinkles. Last abdominal ventrite with paired raised lobes bordering median depression ( Figs 54, 55 ), much higher and setose in male. Penis subtruncate ( Fig. 39 )....................................... H. lobifer Wanat

-. Body length 3.4–3.9 mm. Elytra with evident bronze tinge, not much extended apically, in profile more roundly convex ( Figs 94 , 123); intervals evenly flattened. Last abdominal ventrite convex in both sexes. Penis pointed ( Figs 118 , 148)..........4

4. Hind tibiae sinuate, compressed and twisted apically (Figs 132–134). Coxae, trochanters and femora asetose. Male: underside of rostrum bare; all tibiae mucronate; last abdominal ventrite with large, rectangular protuberance (Fig.138); penis (excluding apodemes) more than 5× as long as broad (Fig. 148); tegminal parameroid lobes with dense tuft of long and numerous setae (Fig. 145). Female: last abdominal ventrite with triangular elevation.............................. H. tibialis sp. nov.

-. All tibiae straight, unmodified (Figs 106–108). Underside of coxae, trochanters and bases of femora with dense protruding setae, forming distinct fringe in male. Male: underside of rostrum protrudingly pilose; all tibiae unarmed; last abdominal ventrite roundly convex, with densely setose depression (Fig. 109); penis (excluding apodemes) less than 3× as long as broad ( Fig.118 ); parameroid lobes with few inconspicuous setae ( Fig. 117 ). Female: last abdominal ventrite regularly convex......................................................................................... H. plumipes sp. nov.

Figures

FIGURES 33 – 45. Archellerenius giustoi, male (33 – 37), Hellerenius lobifer, male (38 – 42) and female (43 – 45): 33) penis with apodemes, lateral view; 34, 39) penis, dorsal view; 35, 38) sternites VIII and IX; 36, 41) tegminal plate and basal piece, lateral view; 37, 42) tegminal plate, dorsal view; 43) spermatheca; 44) tergite VII; 45) complete terminalia. Abbreviations: b, bursa; d, spermathecal duct; ed, ejaculatory duct; gl, spermathecal gland; r, rectum; s, spermatheca.

FIGURES 21 – 32. Archellerenius giustoi, male (23 – 26), female (21, 22, 27 – 32): 21) metathoracic wing, enlarged radial cell to show distinct radial window (21 A); 22) apical flange of last abdominal ventrite, postero-lateral view; 23, 24) pygidium in dorsal (23) and lateral (24) view; 25 – 28) abdomina in ventral (25, 27) and lateral (26, 28) view (notice mite nymph attached to female 2 nd ventrite); 29) rectum; 30) tergite VII; 31) spermatheca and bursa copulatrix; 32) terminalia with enlarged ovipositor. Abbreviations: b, bursa; c, coxite, d, spermathecal duct, g, gonads; p, pygidium; rr, rectal ribbon-like internal lamina, s, spermatheca; st, stylus, sv, spiculum ventrale; w, radial window.

FIGURES 47 – 56. Hellerenius lobifer, male (49, 51), female (47, 48, 50, 52 – 56): 47) pronotum and elytra, lateral view; 48) elytra, dorsal view; 49) protarsus; 50) antenna; 51) head with rostrum and pronotum, dorsal view; 52) head with rostrum, dorsal view; 44) rostrum base, lateral view; 54) apical flange of 5 th abdominal ventrite and corresponding tergite VII (t), posterolateral view; 55, 56) abdomen in ventral (55) and lateral (56) view.

FIGURES 87 – 95. Hellerenius monteithi, male (87 – 91), Hellerenius plumipes, male (95) and female (92 – 94): 87) penis, lateral view; 88) entire penis, enlarged pedo-tectal part in dorsal view (88 A) and endophallus (88 B) in lateral view; 89) tegminal plate and basal piece, lateral view; 90) entire tegmen, enlarged tegminal plate (90 A), dorsal view; 91) sternites VIII and IX, enlarged fork of s. IX (91 A); 92) spermatheca; 93) metathoracic wing, enlarged radial cell to show vestigial radial window (93 A); 94) elytra, lateral view; 95) pilose mesocoxae, trochanters and femoral bases. Abbreviations: ed, ejaculatory duct; w, radial window.

FIGURES 111 – 121. Hellerenius plumipes, male (117 – 120), female (111 – 116): 111, 112) all abdominal ventrites in dorsal (111) and lateral (112) view; 113) fifth abdominal ventrite, posterior view; 114) entire ovipositor with spiculum ventrale, lateral view; 115) tergite VIII and ovipositor, enlarged stylus; 116) tergite VII; 117) tegminal plate and basal piece, dorsal view; 118, 119) penis with partial apodemes and endophallus in dorsal (118) and lateral (119) view; 120) terminal parts of endophallus, tegminal and penial apodemes, lateral view; 121) sternite VIII and IX.