Larinus

Gültekin, Levent, 2008, Taxonomic review of the stem-inhabiting trehala-constructing Larinus Dejean, 1821 (Coleoptera: Curculionidae): New species, systematics and ecology, Zootaxa 1714, pp. 1-18: 5

publication ID

http://doi.org/ 10.5281/zenodo.274123

persistent identifier

http://treatment.plazi.org/id/1E1287A0-AA5F-B122-058E-FD7570F6F947

treatment provided by

Plazi

scientific name

Larinus
status

 

Key to species of trehala-constructing Larinus  

1 - Elytra with whitish-grey round spots or stripes ( Figs. 3, 4 View FIGURES 1 – 4 )........................................................................ 2

- Elytra without whitish-grey round spots or stripes, grayish-white pubescence randomly scattered and only more condensed on some places ( Figs. 1, 2 View FIGURES 1 – 4 )............................................................................................... 3

2 - Elytra with several separated round whitish spots concentrated on intervals 2–5 and 8–10 ( Fig. 4 View FIGURES 1 – 4 ); rostrum about 0.65 times as long as pronotum in male, some up to 0.80 times in female, deeply bisulcate on dorsal surface at basal half, base and apex of more or less equal width; third segment of fore tarsi about 1.10 times, that of hind tarsi 1.05 times as wide as second; aedeagus parallel-sided, very weakly swollen medially, narrowed at apex ( Fig. 5 View FIGURES 5 – 14. 5 – 8 ). Integument shiny black, body size 10.4–15.5 mm. Host plant: Echinops persicus   . Syria, Iran, Transcaucasus, Turkmenia, Afghanistan................................. L. nidificans   Guibourt

- Elytra with stripes on intervals 2–4 ( Fig. 3 View FIGURES 1 – 4 ); male rostrum only slightly differing in length from that of female (about 0.74 times as long as pronotum in male, 0.76 times in female), gradually and weekly narrowed from base to apex, at apex 0.85 times as wide as at base; third segment of fore tarsi 1.40 times, that of hind tarsi 1.30 times as wide as second; aedeagus parallel-sided, gradually but weakly narrowed from base to apex ( Fig. 6 View FIGURES 5 – 14. 5 – 8 ). Integument matte, body size 8.8–12.7 mm. Host plant: Echinops   sp. (new host record). Distribution: Rhodes, Syria, Iran (new record) Libya, Egypt (new record), Turkey (new record). ................................................................................................................................ L. hedenborgi   Boheman

3 - Pronotum without white spots, clothed with very short whitish pubescence (Figs, 2, 24); aedeagus in dorsal view strongly swollen medially ( Fig. 7 View FIGURES 5 – 14. 5 – 8 ); tergite VIII ( Fig. 10 View FIGURES 5 – 14. 5 – 8 ) somewhat triangular, sternite VIII ( Fig. 13 View FIGURES 5 – 14. 5 – 8 ) tulip-shaped; spermatheca with very sharp apex ( Fig. 14 View FIGURES 5 – 14. 5 – 8 ). Surface of capsule “trehala” roughly tuberculate ( Fig. 23 View FIGURES 21 – 26 ). Host plants: Echinops sphaerocephalus   , E. pungens   and Echinops   sp. (new records). Distribution: Algeria, Libya, Syria, Palestine, Lebanon, Iran, Siberia, Caucasus, Turkey... L. rudicollis   Petri

- Pronotum with white spots, whitish scales concentrating on pronotal sides to constitute three narrow lines on apical half ( Figs. 1 View FIGURES 1 – 4 , 20 View FIGURES 15 – 20 ); aedeagus in dorsal view not strongly swollen medially ( Fig. 8 View FIGURES 5 – 14. 5 – 8 ); tergite VIII ( Fig. 9 View FIGURES 5 – 14. 5 – 8 ) wide and semicircular, sternite VIII ( Fig. 12 View FIGURES 5 – 14. 5 – 8 ) trapeziform; spermatheca with blunt apex ( Fig. 11 View FIGURES 5 – 14. 5 – 8 ). Surface of capsule “trehala” more or less smooth ( Fig. 18 View FIGURES 15 – 20 ). Host plant Echinops orientalis   . Distribution: northeastern Turkey (Aras Valley) ................................................................................. L. capsulatus   sp. n.