AW Insect Book: Hemiptera, Heteroptera, Pentatomidae

Tue Oct 28, 2014 10:21 pm

Stink Bug Pseudatelus sp., Atelocera sp., possibly P./A. caffra
Superfamily: Pentatomoidea. Family: Pentatomidae. Subfamily: Pentatominae

Image © BluTuna

Image © BluTuna
Garden in Johannesburg

Taxonomic Note
When Linnavuori (1982) described the genus Pseudatelus, he effectively transferred all but three species of Atelocera into.

Description
Body length: 15-22 mm. Long scutellum that reaches nearly to the apex of the body. The apex of the scutellum is rounded. Banded antennae, 4-jointed. Legs with long erect pale hairs.

Links: Swedish Museum of Natural History; Hétéroptères phytophages et prédateurs d'Afrique de l'Ouest

AW Insect Book: Hemiptera, Heteroptera, Reduviidae

Tue Oct 28, 2014 10:46 pm

Reduviidae (Assassin Bugs)
Reduviidae is a large cosmopolitan family of the order of "true bugs" or Hemiptera. Assassin Bugs are so called because they are predators, their prey consisting mainly of insects and other arthropods. The elongate head and short curved proboscis are good field characters to distinguish them from other bugs. Medium to large, robustly built bugs that prey on other arthropods and have a powerful recurved beak (rostrum), the tip of which is rubbed against a rigged groove under the body to produce sound. They are ambush predators that move slowly towards their prey before rushing out and grabbing with the fore legs, injecting a secretion from the beak that has a quick paralytic action. The prey is sucked dry. They are ambush predators that move slowly towards prey before rushing out and grabbing with the fore legs, injecting a secretion from the rostrum that has a very quick paralytic action.
About 475 species are known from the region.

AW Insect Book: Hemiptera, Heteroptera, Reduviidae

Tue Oct 28, 2014 10:48 pm

Cotton-stainer Assassin Phonoctonus sp.
Superfamily: Reduvioidea. Family: Reduviidae. Subfamily: Harpactorinae

Image © BluTuna

Image © BluTuna
Garden in Johannesburg

Description
The genus Phonoctonus contains 3 species in South Africa: P. nigrofasciatus, P. principalis, P. fasciatus.
Phonoctonus spp. have short, curved mouthparts, 'necks' and rather large eyes. There are several species of them and each seems to mimic one species of cotton stainer in the shape and colour pattern of its wings.
Large (body length 27 mm), brightly coloured with red head, white neck, and white, red and black abdomen. Wings tan and black with black spots.

Distribution
Africa.

Re: AW Insect Book: Hemiptera, Heteroptera, Reduviidae

Sun Mar 15, 2015 11:15 am

Millipede Assassin Bug
Superfamily: Reduvioidea. Family: Reduviidae. Subfamily: Ectrichodiinae

Image © BluTuna
Kruger National Park

Millipede assassin bugs in the subfamily Ectrichodiinae are a diverse group of specialized millipede predators, representing the fifth largest subfamily of Reduviidae. The subfamily Ectrichodiinae is readily recognised by its characteristic two-pronged scutellum. They are often brightly colored metallic blue, red, or yellow. The females are often apterous (lacking wings).

Links: Checklist: The Assassinbugs (Hemiptera: Reduviidae) of South Africa

Re: Africa Wild Insect Book Hemiptera, Heteroptera Typical B

Mon Dec 07, 2015 11:30 pm

Ant wolf or Feather-legged Bug Holoptilus sp., possibly H. nebulosus
Family: Reduviidae Subfamily: Holoptilinae
Tribe: Holoptilini

Image KTP

Taxonomic Notes
Holoptilinae comprise ~80 species in 16 extant and fossil genera and 3 tribes (Holoptilini, Dasycnemini, and Aradellini).

Distribution
Afrotropical, Oriental, and Australian Regions

Image

Identification
Holoptilinae are sometimes referred to as feather-legged assassin bugs. They are diagnosed by the absence of the foretibial comb, presence of dense and long setae on the body and legs (Dasycnemini and Holoptilini), the trichome on the abdominal sternum (Holoptilini), and one closed cell (Holoptilini) or 2 longitudinal veins (Dasycnemini) on the forewing membrane. Feather-legged bugs in the tribe Aradellini share the general habitus of other Holoptilinae, but have short instead of long setation on legs and antenna.

Image

Natural History
Holoptilini appear to be specialized on ants and attract their prey with a seemingly glandular structure on the abdomen called the trichome.

(Source: Weirauch_etal_2014_Reduviidae: An Illustrated Identification Key to Assassin Bug Subfamilies and Tribes (Hemiptera: Reduviidae)