Astaena incachaca Saylor, 1946

Pacheco, Thaynara L., Monné, Marcela L., Vaz-De, Fernando Z. & Ahrens, Dirk, 2021, Revision of type specimens of Astaena (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) described by L. W. Saylor, European Journal of Taxonomy 750 (750), pp. 94-123 : 104

publication ID

https://doi.org/ 10.5852/ejt.2021.750.1365

publication LSID

lsid:zoobank.org:pub:CE5D8517-AC04-4AF9-BD78-A2D6E21D33A8

DOI

https://doi.org/10.5281/zenodo.5493234

persistent identifier

https://treatment.plazi.org/id/038B976C-FF81-FFE4-CA17-C8AA1494C9EC

treatment provided by

Felipe

scientific name

Astaena incachaca Saylor, 1946
status

 

Astaena incachaca Saylor, 1946

Figs 3A–E View Fig , 7A View Fig

Astaena incachaca Saylor, 1946: 215 .

Astaena incachaca – Frey 1973: 329 (identification key). — Evans 2003: 23 (checklist). — Evans & Smith 2005 a: 9 (checklist); 2007: 9 (checklist); 2009: 9 (checklist).

Type material examined

Holotype BOLIVIA • ♂; “ Incachaca , Bolivia, Alt. 2500m, J. Steinbach, Acc. 6873 / L.W. Saylor Collection / California Academy of Sciences Type nº 7913 / Holotype Astaena incachaca L.W. Saylor ”; CAS.

Paratype BOLIVIA • 1 ♀, Incachaca, Bolivia, Alt. 2500m, J. Steinbach, Acc. 6873 / L.W. Saylor Collection / Collection of the California Academy of Sciences, San Francisco, California / Allotype Astaena incachaca L.W. Saylor / CASENT 8438145”; CAS .

Holotype redescription

MEASUREMENTS. Length: 11 mm. Width: 5.6 mm.

HEAD. Reddish-brown, surface with upright setae. Labroclypeus, shape of anterior margin straight, posteriorly with dense punctation. Ocular canthus with terminal setae, ratio to eye: 1/3. Eyes, ratio diameter/interocular width: 0.56. Antennae with eight antennomeres; antennal club with three antennomeres; ratio antennal club/remaining antennomeres: 1/1; ratio third vs fourth antennomere: 1/3; fourth antennomere, lateral projection absent; ratio fifth vs fourth antennomere: 1/5.

PRONOTUM AND ELYTRA. Surface of pronotum and elytra with setae. Pronotum unicolored, reddishbrown, widest at middle, posterior marginal line absent, lateral margin strongly convex and smooth (not serrate), antero-lateral angle dorso-ventrally flattened, postero-lateral angle dorso-ventrally not flattened, punctation on disc sparse, setae of lateral margin dense, median longitudinal excavation absent. Scutellum, punctures absent medially. Elytra unicolored, reddish-brown, surface opaque, microsculpture absent, punctation on intervals present and sparse, diameter of strial and interval punctation equal.

ABDOMEN. Lateral carina absent. Second visible ventrite without row of setae in medial region. Apical visible ventrite without suture to apical tergite.

LEGS. Ratio of length of metepisternum/metacoxa: 1/0.95. Metacoxa without longer lateral bristles, a laterally extended longitudinal shelf absent. Metatibia, widest at apex, ratio of width/length: 1/4.27, dorsal margin not carinated, ventral margin serrated, distal spines groups disposed at two thirds of metatibial length. First metatarsomere, ratio to dorsal metatibial spur: 1/2. Dorsal surface of tarsi glabrous, with punctures. Metatarsi, length of first protarsomere subequal to second and third combined, ventral margin serrated and setose. Protibia with three teeth. Protarsi, length of first protarsomere subequal to second and third combined, second protarsomere narrow, claws symmetrical, inner protarsal claw bifid, apex of basal tooth of inner protarsal claw acute.

AEDEAGUS. Fig. 3A–B View Fig .

CAS

USA, California, San Francisco, California Academy of Sciences

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

SubClass

Pterygota

Order

Coleoptera

SuperFamily

Scarabaeoidea

Family

Melolonthidae

SubFamily

Melolonthinae

Tribe

Sericini

Genus

Astaena

Loc

Astaena incachaca Saylor, 1946

Pacheco, Thaynara L., Monné, Marcela L., Vaz-De, Fernando Z. & Ahrens, Dirk 2021
2021
Loc

Astaena incachaca

Evans A. V. 2003: 23
Frey G. 1973: 329
1973
Loc

Astaena incachaca Saylor, 1946: 215

Saylor L. W. 1946: 215
1946
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