None of them could speak her language, and I doubt that any of them
 ever got near her.  (Species that have a queen don't survive very long if
 they let potentially hostile aliens get near her.)

Which of course is why they took Jinnai straight to the top.
  

  In fact, 
 > I consider that one of the LARGER plot holes in El-Hazard; the fact that 
the 
 > Bugrom, who have the intelligence of your average dog, managed to 
 > differentiate between Jinnai and your average Roshtarian long enough to 
take 
 > him to Deva.
 
 	He screamed out for help, and they realized "Wait a minute, this
 thing is speaking like one of us!"

THAT'S what happened? I didn't realize...... I thought that the El-Hazardians 
and Makoto & Co both spoke the same language in one of those convenient 
little coincidences that always crops up in cross-dimensional plots, and that 
Jinnai made it to Deva's lair because if he hadn't there'd be no story. Then 
again, I watched the dubs. Maybe the language thingy is clearer in the subs. 

Although I doubt it. Pioneer does NOT know how to sub.

-Mercutio
"A plague 'a both your houses!"