Very interesting, never saw or heard of it:
any of some 2,800 species of soft-bodied, brightly coloured, predominately tropical beetles (insect order Coleoptera) whose wing covers, or elytra, are broader at the tip than at the base and are characterized by a raised network of lines, or veins. The adults feed either on plant juices or on other insects and can easily be seen as they fly slowly between plants or crawl on flowers. The bold colouring of orange and black or blue probably warns predators of their acidic, burning taste. Larvae feed on wet rotting wood and are often found in high numbers. https://www.britannica.com/EBchecked/topic/409917/net-winged-beetle
predominately tropical means most of the species are, but presumably not yours in NJ!
sounds like they are basically beneficial in the garden:
Netwinged beetles-Family Lycidae. Only 50 species of netwinged beetles are known in North America. The adults of these soft-winged beetles are somewhat similar in appearance to fireflies and soldier beetles, but have a network of raised veins on the elytra (wing covers). They are active in the day and feed on juices from decaying plant material or occasionally on other insects. The larvae feed on a diversity of soft-bodied insects and snails or slugs.
I'm in favor of anything that eats slugs!
speaking of which on the same page it mentions that firefly larvae also eat slugs. Given how many fireflies we have, how could it be that we still have lots of slugs?!
Thanks for figuring this one out, Kisal!