Details for Record 97830

Species: No Common Name (Megarhyssa greenei) (Species ID: 11707) - View Species | Quad Details   

Date: 9/3/2013

Quad: Location crosses quads

County: Anne Arundel

Records: 10 total records, 1 for Anne Arundel Co., 0 for Annapolis Quad

Observer: Josh Cohen

Specimen: No

Publication: No

Processed by: Bill Hubick


For all taxa:


For this taxon:


A Megarhyssa greenei found in Annapolis, Maryland (9/3/2013). The long appendage is not a stinger, but its ovipositor. It uses the ovipositor to lay eggs in its host species. This genus of Ichneumon Wasp parasitizes Horntails (another family of wasp) in the genus Tremex. Species in the genus Tremex lay their eggs in wood. The larvae grow up in the wood. Megarhyssa wasps use their long ovipositors to probe for the Tremex larvae. When the long ovipositor finds the appropriate larvae it punctures the larvae and injects its eggs. Then larvae eat larvae. Photo by Josh Cohen.

A Megarhyssa greenei found in Annapolis, Maryland (9/3/2013). The long appendage is not a stinger, but its ovipositor. It uses the ovipositor to lay eggs in its host species. This genus of Ichneumon Wasp parasitizes Horntails (another family of wasp) in the genus Tremex. Species in the genus Tremex lay their eggs in wood. The larvae grow up in the wood. Megarhyssa wasps use their long ovipositors to probe for the Tremex larvae. When the long ovipositor finds the appropriate larvae it punctures the larvae and injects its eggs. Then larvae eat larvae. Photo by Josh Cohen.

A female Megarhyssa greenei in Anne Arundel Co., Maryland (9/3/2013). This impressive Ichneumon was photographed by the mayor of Annapolis and shared with our local community. Determined by Bob Carlson/BugGuide. Photo by Josh Cohen.