What is the best repellent for Black Flies?

The kind that bite you on the beach? I tried Deep Woods Off, with DEET, but they totally ignored it, acting almost like it was delicious or something.What is the best repellent for Black Flies?
Don't know if it is the best but as a sailor I relied on vinegar slapped on elbows and ankles, the places most affected by flies and mossies. OK you start to smell like a chip shop but the flying insects seem more repelled than the local ladies... give it a try..................... Good luck.What is the best repellent for Black Flies?
THIS REPTIL:





Dasia haliana





Scientific classification


Kingdom: Animalia


Phylum: Chordata


Class: Reptilia


Order: Squamata


Suborder: Sauria


Family: Scincidae


Genus: Dasia


Species: D. haliana


Binomial name


Dasia haliana


(Haly %26amp; Nevill,1887)


Please wikify this article or section.


Help improve this article by adding relevant internal links. (November 2007)





Tree Skink Dasia haliana is a species of tree skink found in the southern Western Ghats and Sri Lanka.





Description





Snout pointed, longer than the orbit : supranasals not in contact with one another ; frontonasal about as long as broad ; prefrontals large, just separated from one another frontal rather narrow, as long as or shorter than the fronto-parietals and inter-parietal together; interparietal very variable in size, when large separating the parietals ; a pair of nuchals ; 4 supraoculars, second largest, first and second in contact with the frontal : 7 or 8 supraciliaries, first longer than the others; an anterior and a posterior loreal, both longer than high ; temporal scales a little larger than those on the sides of the neck ; ear-opening not one-quarter the size of the eye-opening, with crenate margin ; tympanum deeply sunk ; dorsal scales with 3 or 5 obtuse keels, the two vertebral series of scales broader than the others ; 24 scales round the body ; preanals slightly enlarged. Tail tapering to a fine point, as long as or a little shorter than the head and body, the median series of scales below transversely enlarged. Limbs rather short ; the adpressed limbs fail to meet or just overlap ; toes moderately long, 17 or 18 lamellae beneath the fourth toe ; palms of hands and soles of feet with flattish tubercles, heel with larger ones, larger in the male than in the female. Yellowish-olive above, with broad black cross-bars which are about as broad as their interspaces, 5 or 6 on the neck and body ; a black mark upon the occiput, extending forward as two streaks on the top of the head and two lateral ones through the eye to the nostril; yellowish below. In the young the black bars are more conspicuous. (Smith, 1935)





From snout to vent 80 mm.