Heterogomphus eteocles Burmeister 1847

Alvarez, Héctor Jaime Gasca, da, Claudio Ruy Vasconcelos, Fonseca & Ratcliffe, Brett C., 2008, Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon, Insecta Mundi 2008 (61), pp. 1-62 : 21-22

publication ID

https://doi.org/10.5281/zenodo.5352440

persistent identifier

https://treatment.plazi.org/id/03FC1A09-FFC9-F770-FF02-4B410DA9F9A0

treatment provided by

Felipe

scientific name

Heterogomphus eteocles Burmeister 1847
status

 

Heterogomphus eteocles Burmeister 1847

( Fig. 29-32 View Figure 29-31 View Figure 32 )

Heterogomphus eteocles Burmeister 1847: 228

Heterogomphus polynices Prell 1912: 109 (synonym)

DESCRIPTION. Length: 41.5-55.5 mm. Width: 24.5-26.0 mm. Color: Dark reddish brown to black; pronotum brown to black

Males. Head: Frons with long, recurved horn, posterior margin of horn with a small prominence, apex narrowly truncate, slightly bilobed, surface densely rugose. Eye canthus with apex rounded, surface punctate and rugose. Antenna with 10 segments, club subequal in length to segments 2-7. Mandibles with 2 long, subequal teeth, apices of teeth rounded. Pronotum: Prominence long, high, projecting at 90 o from the body; apex bifurcate forming 2 small quadrangular horns, horns projecting forward. Sides with broad rugose area in basal half. Fovea broad, surface smooth with small punctures. Elytra: Impressed sutural stria present. Surface usually smooth with small, sparse punctures, lateral margin weakly rugose. Pygidium: Surface finely punctate and rugose with a transverse band of long, reddish brown setae on posterior margin. Angles weakly rugose. Surface convex in lateral view. Legs: Protibia quadridentate. Apex of posterior tibia strongly crenulate. Apex of first tarsomere of posterior tarsus subtriangular, elongate, spur-like ( Fig. 29 View Figure 29-31 ). Venter: Prosternal process short to moderate in length, conical, apex acuminate. Parameres: Oval, contracted toward apices, sides curved. Posterior region with deep punctures. Apex setigerous on inner margin ( Fig. 30-31 View Figure 29-31 ).

Females. Females unavailable.

DIAGNOSIS. Adults of H. eteocles can be recognized by the pronotal horn projecting at 90 o from the body, bifurcate at the apex with two quadrangular lobes. The frontal horn is long, recurved, and weakly bilobed.

DISTRIBUTION. Heterogomphus eteocles is distributed only in South America, occurring from southern Brazil to northern Argentina. The specimens listed below from Amazonas and Pará states represent NEW RECORDS from the Brazilian Amazon.

LOCALITY RECORDS. ( Fig. 32 View Figure 32 ) 2 specimens examined (2 males). Specimens were seen from the following collection : MZSP.

AMAZONAS (1): Benjamin Constant ( Rio Javari ) . PARÁ (1): Óbidos.

TEMPORAL DISTRIBUTION. April (2)

BIOLOGY. Little is known about the biology of this species. Heterogomphus eteocles has been reported as a pest of Chusquea ramosissima Lindm. ( Poaceae ) in Argentina ( Keller 2003). In Brazilian Amazonia, adults have been collected from areas of seasonal whitewater inundation forest (várzea).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Dynastidae

Genus

Heterogomphus

Loc

Heterogomphus eteocles Burmeister 1847

Alvarez, Héctor Jaime Gasca, da, Claudio Ruy Vasconcelos, Fonseca & Ratcliffe, Brett C. 2008
2008
Loc

Heterogomphus polynices

Prell, H. 1912: 109
1912
Loc

Heterogomphus eteocles

Burmeister, H. C. C. 1847: 228
1847