Acarapion ferruginosum Kissinger

Kissinger, David G., 2005, Review Of Apioninae Of Chile (Coleoptera: Curculionoidea: Apionidae), The Coleopterists Bulletin 59 (1), pp. 71-90 : 81-83

Acarapion ferruginosum Kissinger , new species

( Figs. 13, 14 )

Description. With generic characters. Length 1.44–1.67 mm; width 0.63–0.79 mm. General aspect dark reddish piceous. Vestiture fine, white, sparse, evident, uniform, scales around eyes; on sides of pro-, meso-, and metathorax and on legs similar in coarseness and length. Male rostrum 0.35–0.40 mm long; 1.05–1.20 as long as prothorax; surface dull except at tip, with distinct, sparse punctures; in profile curved, sides subparallel except in apical 1/3 dorsal margin more strongly

82 THE COLEOPTERISTS BULLETIN 59(1), 2005

0.36 mm.

convergent toward tip, dorsal margin of scrobe evenly descending below eye. Female rostrum 0.46–0.53 mm long; 1.25–1.50 as long as prothorax; similar to male. Head dorsal margin slightly declivitous above basal margin of eye. Prothorax 0.32–0.38 mm long, at base 1.12–1.37 as wide as long; pronotum surface alutaceous, punctures shallow, with scales similar to rostrum. Elytra at middle with interval 2 2.3–2.6 times as wide as stria, slightly convex, alutaceous, with one row of scales similar to pronotum, base (or along entire length) of interval 3 with row of scales slightly confused (appears slightly denser); striae moderately deep, fine, with vestiture finer than adjacent interval, on apex joining 1 þ 2 þ 9, 3 þ 4, 5 þ 6, 7 þ 8. Male characters: tarsi 1–3 with tarsomere 1 on inner margin with blunt spiniform process 12–17 microns long.

Distribution. The range is near latitude 33 8 S in the Valparaíso and Metropolitana de Santiago Regions of Chile.

Type Material. Holotype, male, labeled [printed white label] ‘‘ Chile, El Clarillo , Santiago; 31 Oct 1948 ’’/[printed white label] ‘‘ G. Kuschel Collection’ ’/[printed goldenrod label] ‘‘ N. Z. Arthropod Collection, NZAC Private Bag 92170 AUCKLAND New Zealand’ ’/[printed white label] ‘‘measured 00836 DGKissinger’’/[printed red holotype label] ‘‘ HOLOTYPE Acarapion ferruginosum KISSINGER’’ ( NZAC) . Paratypes 6 total. 4? 2 /, same locality, collector and bionomic data as holotype ( NZAC) .

Associated Material. The following are not paratypes but are probably A. ferruginosum . Chile. Valparaíso: 2?, 2 /, Valparaiso, 21.XI.1947, E. P. Reed ( NZAC). Metropolitana de Santiago: 2 /, San Cristóba, 28.IX.1945, G. Kuschel, on Podanthus mitiqi , Apion ferruginosum in litt. det G. Kuschel 1987, Apion sp. 10 (‘ferruginosum’) G. Kuschel ( NZAC); 7?, 19 /, Chacabuco, Colina, 3.I.1989, C. L. Bellamy ( CMNC).

Biology. Associated with ‘‘ Podanthus mitiqi ’’ ( Asteraceae ) according to label data; ‘‘...host in Santiago area is Acacia caven [(Molina) Molina]’’ (G. Kuschel, in litt.).

Etymology. Name suggested by G. Kuschel; based on Latin, ferrugo, meaning iron rust (Brown 1956, p. 674).

See Acarapion nigrosuturatum for comparison with A. ferruginosum .

Figures

Figs. 13–14. Acarapion ferruginosum. 13) Dorsal view, male; 14) lateral view, male. Scale ¼