A hoped-for solution to swarms of Portuguese millipedes in New Zealand appears to have fallen short, as a parasitic worm once viewed as a possible fix does not seem to work at real-world levels. What happened? For nearly a year, people on Wellington's south coast have reported seeing Portuguese millipedes in huge numbers, with the dark, scaly creatures appearing around homes and inside shoes, bags, and even beds, according to RNZ. Since those re…