Rasahus biguttatus
This record describes Rasahus biguttatus (species). Recorded family: Reduviidae. Recorded order: Hemiptera.
Identification and Appearance
Very similar to hamatus ; the chief differences as in key. Color variable, the head and pronotum often reddish-brown, sometimes with front half of latter black and hind one brown. Membrane blackish with a large oval or rounded yellowish spot at middle. Connexivum in both sexes with wide alternate blackish and yellow spots; legs usually reddish- yellow, paler at base, often in great part blackish.... Both ( biguttatus and hamatus ) vary widely in the yellow markings of elytra and legs. The only structural difference between the two seems to be the narrower form of the males of hamatus . Type Locality: Louisiana
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Miroidea
- Family
- Reduviidae (Assassin Bugs)
- Subfamily
- Peiratinae
- Genus
- Rasahus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
s. US (AZ-TX-FL, NC) to Brazil / W. Indies - Map , most records in TX
Additional species information
Species notes from the sources
Etymology: Rasahus biguttatus ( Say 1832)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Rasahus biguttatus. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Rasahus biguttatus (5)
Photo credits: Contributed by Boris Büche; Additional contributions by cotinis , Lynette Elliott , Mike Quinn , v belov
Frequently Asked Questions About Rasahus biguttatus
What is Rasahus biguttatus?
Rasahus biguttatus is a species in the family Reduviidae, within the order Hemiptera.
How big is Rasahus biguttatus?
16-20 mm
How do you identify Rasahus biguttatus?
Very similar to hamatus ; the chief differences as in key. Color variable, the head and pronotum often reddish-brown, sometimes with front half of latter black and hind one brown. Membrane blackish with a large oval or rounded yellowish spot at middle. Connexivum in both sexes with wide alternate blackish and yellow spots; legs usually reddish- yellow, paler at base, often in great part blackish.... Both ( biguttatus and hamatus ) vary widely in the yellow markings of elytra and legs. The only structural difference between the two seems to be the narrower form of the males of hamatus .
Where is Rasahus biguttatus found?
Range: s. US (AZ-TX-FL, NC) to Brazil / W. Indies - Map , most records in TX