Other Common Names
Bean Plataspid, Lablab Bug, Globular Stink Bug (1)
Synonyms and other taxonomic changes
Megacopta cribraria (Fabricius)
Orig. Comb: Cimex cribraria Fabricius 1798
the only member of its family reported from the Western Hemisphere (1)
Readily distinguished among N. Amer. Pentatomoidea by the two-segmented tarsi and enlarged scutellum that is widest and relatively truncate posteriorly (1)
Males and females can be distinguished by their undersides. Only the first few abdominal segments are lightly colored underneath on the males, whereas all are on the females (1)
The genitalia visibly differ as well.
Fifth instar nymphs have wingbuds:
US range (as of July 2013): LA-FL-DE-WV - map
native to e./se. Asia, adventive in the US & Australia (1)
. First reported in Georgia in 2009.
Particularly within the vegetation along the vines.
hosts: in the US, reported to develop only on soybean and kudzu - Univ. FL, 2012
Primary hosts are Fabaceae. It has also been reported on plants from other families, such as sweet potatoes, potatoes, corn and cotton.
Eggs are often laid in batches on budding kudzu leaves. The mother deposits packets of host specific symbiotic gut bacteria at the base of the eggs. After hatching, the nymphs consume the bacteria which allows them to start digesting the host plant. (1)
Nymphs congregate and feed together along the vines, preferring leaf buds.
Mating observed in mid-summer in ne. GA
Two generations and a partial third generation a year in Georgia.
may invade homes in large numbers and become a household pest(1)
; highly invasive species of mixed impact: it seems to prefer kudzu (a highly invasive and damaging plant), but can also become a serious pest of leguminous crops.
They may also bite humans: "...on a couple of occasions they bit my neck. The resulting bite caused skin to die in a dime-sized patch which took 2 weeks to go away." (Posted by Ted Day, Aug 28, 2011)
(dedicated resource; U. of Georgia)
Poplin & Hodges (2012)[Cite:185010] | Suiter et al. (2010)
| Gardner (2012)