HIRUNDO N IG R O R U FA .
i / i ' | ? 1 'ii
H I R U N D O N I G R O R U F A , Bocage.
E U F O U S -A K D -B L A C K SW A L L O W .
H ir u n d o n ig ro ru fa , B o c ag e , J o r n . L isb . v i. p . 15 8 (1 8 7 7 ), p . 2 5 0 (1 8 7 8 ) ; k l. op. c it.
vii. p . 2 3 6 (1 8 8 0 ) ; id . O rn . A n g o la , p . 6 4 0 (1 8 8 1 ) ; S b a rp e , ed. L a y a r d ’s B. S. A fr.
p . 8 4 0 (1884) ; id . C a t. B ird s in B rit. M u s . x . p . 1 5 0 (1 8 8 5 ).
H. u ro pygio c t pileo dorso concoloribus ; su b tiis cnstaiica, subc au d a lib u s pui-purco.cau-ulois.
ila b . in provincia Angolensi Afric a ; occidentalis.
AduU male. Gen e ra l colour above glossy purpli,sh b lu e , w ith a concealed rufous un d o rsh ad c , only sccu
w ben tlie fe a th e rs a rc distu rb ed ; wiug-coverts like tlic ba ck, w ith a sm o k y -b iw i i p a tc h o n tlie
in n e r web o f th e in n e rm o s t g r e a te r coverts ; q uills b la ck , glossed w ith p u rp lish b lu e e x te n ia lly ,
tlic secondaries e n tire ly o f th e la tte r colour, rosembliiig th e b a c k ; ta il-fcn tlic rs b la ck glossed
w ith blu e , th e th re e o u te r fe a tlie rs with a fringe o f w h ite tow a rd s th e end o t tlic in n e r web, n ot
pro n o u n c ed en o u g h to fo rm a s p o t; be ad lik e th e b a ck ; lores velvety b la c k ; e a r-eo v e rts like
th e crown ; cheeks a u d u n d e r su rfa c e o t body c h e s tn u t, w ith a p a tc li o t p u rp lish b lu e on each
s i d e o t th e u p p e r bre a st ; th ig h s c lic s tn u t ; u n d e r ta il-co v c rts glossy p u rplish b lu e ; u n d e r wing-
covc rts a n d axillaries cliestiiiit lik e th e b r e a s t; q u ills sooty b la ck b e low ; “ iris c l ic s tn u t”
(Anchie ta). T o ta l lengtli 5 '3 inche s, cnlmoii 0 '3 , wiug 4-3Ô, ta il 3 '6 , ta rsu s 0 '4 .
Hab. Bengucla.
T h i s p r e tty Swallow is a p p a r e n t ly co n fln c d to th e d i s tr ic t o f B e n g u c la , iu th e s o u th e rn
p a r t o f th e P o r tu g u e s e p ro v in c e o f A n g o la ; a t l e a s t i t is so f a r o u ly k n ow n from th a t
lo c a lity . A t p r e s e n t S e n h o r A n o h ie ta h a s m e t w ith b u t th r e e s p e c h u c u s , a ll from tin ;
n e ig h l’io n rh o o d o f C aco n d a . T h o L isb o n M u s e um , th r o u g h P ro fe s so r B a rb o z a d u B o cag e ,
w a r g o o d e n o u g h to p r e s e n t o n e o f th e s e sp e c im e n s to th o B r i t is h M u s e um , a n d from
i t t h e a b o v e d e s c rip tio n h a s b e e n ta k e n . N o th in g h a s a s y e t h e c n re c o rd e d o f tlio
lia b its 01- m o d e o f n id ific a tio n o f th e spec ie s.
T h e f ig u re in th e P la t e h a s b e e n d i w n from th e a b o v e -m e n tio n e d e x am p le iu th e
B r i t is h M u s e um .