Amblycerus eustrophoides ( Schaeffer, 1904 ),

Santos, Aluska Tavares Dos & Ribeiro-Costa, Cibele Stramare, 2019, Rearrangements in some species groups of Amblycerus Thunberg, 1815 (Coleoptera: Chrysomelidae: Bruchinae) including keys, description of a new species, new host plant and distributional record, Zootaxa 4701 (2), pp. 101-148: 139-140

publication ID

https://doi.org/10.11646/zootaxa.4701.2.1

publication LSID

lsid:zoobank.org:pub:7BD270C5-50AA-4CC0-8101-DB46948A0C81

persistent identifier

http://treatment.plazi.org/id/285D3106-FFF3-EE26-FF07-FA4AFEA2D55D

treatment provided by

Plazi

scientific name

Amblycerus eustrophoides ( Schaeffer, 1904 )
status

 

Amblycerus eustrophoides ( Schaeffer, 1904) 

( Figs 19View FIGURES 19–21, 32View FIGURES 32–34, 45View FIGURES 45–47, 58View FIGURES 58–60, 75, 88, 111, 114, 122)

Spermophagus eustrophoides Schaeffer, 1904: 228  (desc., type, distr.,); Pic, 1913: 59 (cat.); Leng, 1920: 306 (cat.); Johnson, 1968: 1268 (type).

Amblycerus eustrophoides Johnson, 1968: 1268  (type); Bottimer, 1968: 102, 1038 (new comb.); Kingsolver, 1970: 473–474 (distr., host, key, redesc.); Johnson & Kingsolver, 1981: 410 (check.); Udayagiri & Wadhi, 1989: 9 (cat., distr., host.); Kingsolver et al. 1993: 122 (distr., host, redesc.); Romero et al. 1996: 48, 49, 140 (distr., host., key); Romero et al. 2002 (phyl.).

Type material. The species recognition was done through the original description and illustration of the male genitalia ( Romero et al. 1996).

Additional specimens examined. [1 female specimen]: Paradise\ Key Fla\ Mar 2. 19; H Barber.\ Collector; Spermophagus  \ eustrophoides\ H. B 1920 (?) Schaeffer [label handwriting]; Amblycerus eustrophoides  \ ( Schaeffer, 1904)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018. ( USNM). [1 male specimen]: Ac. 5409\ Coll Chas Palm; Kissimmee.\ Fla.; Spermo\ phagus [label handwriting]; Amblycerus  \ eustrophoides\ Bott.’60 (Schfr.); Amblycerus  eus- trophoides \ ( Schaeffer, 1904)\ Det.:A. T. Santos; C. S. Ribeiro-Costa, 2018. ( AMNH). [1 male specimen]: MEXICO Tamps.\ Hda. Santa Engracia\ May—June 1936\ M. McPhail; reared from\ “huilotillo”; eustrophoides [handwriting]; Amblycerus eustrophoides  \ ( Schaeffer, 1904)\ Det.: A. T. Santos; C. S. Ribeiro-Costa, 2018. ( DZUP).

Measurements. BL: 8.5 mm; BW: 4.6 mm.

Diagnosis ( Figs 19View FIGURES 19–21, 32View FIGURES 32–34, 45View FIGURES 45–47, 58View FIGURES 58–60, 111View FIGURES 111–113). Amblycerus eustrophoides  is characterized by the following combination of characters: eyes distant from each other anteriorly ( Fig. 32View FIGURES 32–34), ocular index: 3.4; antennomere 7 about 2.2 longer than wide; pronotum subtrapezoidal with lateral margins straight ( Fig. 58View FIGURES 58–60); metepisternum with longitudinal, fusiform and striated area ( Fig. 45View FIGURES 45–47); elytra with striae formed by isolated punctures, interestriae 4–5 and 6–7 fusioned apically ( Fig. 19View FIGURES 19–21); metafemora with tooth on apical margin; median lobe of male genitalia about 4.4 times as long as its greatest width at apical region ( Fig. 111View FIGURES 111–113); internal sac with a pair of hollow, subcylindrical tuberculate sclerites on the apical region ( Fig. 111View FIGURES 111–113). Amblycerus eustrophoides  is most similar externally to A. ischiodontus Ribeiro-Costa, 1999a  , belonging to the ischiodontus  group ( Ribeiro-Costa 1995), but it differs from the latter species in having dorsum and ventrites covered with light yellow setae (orange setae in A. ischiodontus  ), pronotum entirely covered by coarse and dense punctures (laterally in A. ischiodontus  ) and metepisternum with moderate coarse punctures (without moderately coarse punctures in A. ischiodontus  ). Other similar species is A. stridulator  , belonging to the stridulator  group ( Romero et al. 1996); however, A. eustrophoides  has metepisternum with longitudinal, fusiform and striated area (with transverse, fusiform, curved and striated area in A. stridulator  ), elytra and pygidium without black setae (some black setae in A. stridulator  ) and median region of male genitalia with unpaired wishbone sclerite (one pair of thorn-shaped sclerite in A. stridulator  ). Amblycerus eustrophoides  can be further differentiated from A. pollens  , species belonging to the pollens  group ( Ribeiro-Costa 1995), because it shows a tooth on metafemora (without tooth in A. pollens  ) and apical margin of hind tibia with all denticles of the same size (one denticle longer than the others in A. pollens  ).

Distribution ( Fig. 122View FIGURE 122). United States, Mexico, Cuba and Costa Rica.

Life History. No information was found on this species in the literature.

Host Plants (Tab. II). Euphorbiaceae  : Drypetes laterifolia (Sw.) Krug & Urb.  Salicaceae  : Neopringlea  sp. (new record).

USNM

Smithsonian Institution, National Museum of Natural History

AMNH

American Museum of Natural History

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Amblycerus

Loc

Amblycerus eustrophoides ( Schaeffer, 1904 )

Santos, Aluska Tavares Dos & Ribeiro-Costa, Cibele Stramare 2019
2019
Loc

Amblycerus eustrophoides

Romero, J. N. & Johnson, C. D. & Kingsolver, J. M. 1996: 48
Kingsolver, J. M. & Romero, N. J. & Johnson, C. D. 1993: 122
Udayagiri, S. & Wadhi, S. R. 1989: 9
Johnson, C. D. & Kingsolver, J. M. 1981: 410
Johnson, C. D. 1968: 1268
Bottimer, L. J. 1968: 102
1968
Loc

Spermophagus eustrophoides

Johnson, C. D. 1968: 1268
Leng, C. W. 1920: 306
Pic, M. 1913: 59
Schaeffer, C. F. A. 1904: 228
1904