TWO NEW ETHIOPIAN LONCHAEIDAE. 247 



The species is closely allied to the widely spread L. setifera, Meij., but has no special 

 ciliation at the end of the last abdominal segment in the male. It is also very 

 like the Mediterranean L. aristella, Beck., which may be distinguished by the 

 more shortly pilose arista and by the more pilose scutellum. 



8. Lonchaea plumosissima, sp. nov. (figs. 1 and 3). 



A shining black species with quite black legs, white squamulae and hyaline wings 

 erroneously referred by me in 1913 to the Brazilian L. glaberrima, but distinguished 

 by the very long plumosity of its arista, this being longer than in any other species 

 at present known. 



cJ$. Length of the body, 3'6-4 mm. ; of the wing, 3'7-4'2 mm. Head (fig. 3) 

 entirely black, as broad as the thorax, broader than high in front view, narrow in 

 profile. Frons dullish, but with shining upper orbital and ocellar plates ; the 

 middle stripe is clothed with short and dense black hairs ; that of the female is 

 only a little broader than that of the male, being in both parallel-sided and longer 

 than broad. Lunula small, hardly visible and apparently bare. Cheeks linear, 



Pig. 3. Lateral view of head.of 

 Lonchaea plumosissima, Bezzi, $. 



nearly indistinct above, with a faint greyish dust ; jowls narrow ; vibrissae less 

 developed, but the sides of the mouth with some long hairs ; lower part of occiput 

 with short stout hairs, all black. Face shining black, faintly dusted, distinctly though 

 not very deeply concave towards its middle, and therefore the upper mouth-border 

 slightly prominent. Eyes reddish brown, unicolorous, bare ; in profile they are much 

 narrower than high. Antennae inserted about at middle of eyes ; they are entirely 

 black, but with a faint grey dust on the third joint ; the first two joints are very 

 short, the second bearing above a long bristly hair ; third joint very long, its apex 

 extending below the oral margin ; arista black, with very long plumules, about 

 17-18 on each side ; the breadth of the feathering is about twice as broad as the 

 breadth of the third antennal joint. Mouth-opening broad ; palpi deep black, dilated 

 at end, with short bristly hairs, one of which at the apex is longer than the others ; 

 proboscis thick and short, of a deep black colour ; labium shining black, about 

 as prominent as the palpi. Cephalic bristles black, strongly developed and normal. 

 Thorax shining black, with more or less developed bluish reflections, very glistening, 

 devoid of distinct dust ; hairs and macrochaetae black ; chaetotaxy normal ; 



