246 PROP. M. BEZZI. 



spot united with the yellow part of the preceding segment ; 4th segment entirely 

 black, being only narrowly yellow at the extreme base ; all this black pattern is opaque 

 inwardly and shining laterally and behind, the 4th segment being wholly shining. 

 Venter uniformly whitish yellow. Genitalia black. The whole abdominal pubescence 

 is black. Legs and coxae entirely pale yellowish, unspotted, with pale yellowish 

 pubescence, blackish bristles and black spurs and claws. The wings are dark brown, 

 with the following whitish hyaline indentations and spots : (1) Along the border, 

 an indistinct indentation in the first costal cell ; two broader ones of about equal 

 size in the 2nd costal cell ; three in the marginal cell, the apical one smaller and more 

 apart ; two in the submarginal cell, the first broader and triangular, both extending 

 to the 3rd longitudinal vein ; one in the hind half of the first posterior cell ; three 

 in the second posterior cell, the middle one being longer and stripe-like ; three in the 

 third posterior cell, extending to the fifth vein and partly fused together. The 

 axillary lobe is nearly entirely yellow. (2) The discal spots are : one in the middle of 

 the submarginal cell, just behind the apex of the triangular indentation of the 

 marginal cell ; one in the first basal cell before the small cross- vein, and beyond this 

 two others at equal distance in the first posterior cell, disposed in the same line with 

 the preceding and followed by two more, one above the other, the second being of 

 greater size ; two in the discoidal cell, that in the middle being broader and extending 

 to the 5th vein. The anal cell is broadly hyaline towards its middle. The stigma is 

 wholly black. The costal vein is yellowish on the hyaline indentations, and black 

 on the dark parts ; the other veins are dark brown. 



Type (J (British Museum), and an additional specimen of same sex, from Congo 

 beige, Mayumbe (R. Mayne). 



XII. Cladoderris, Bezzi, 1914. 



Of this aberrant genus recently described by me,* I have seen only the typical 

 specimens collected at Aburi, Gold Coast, by Prof. Silvestri. 



The want of the i. or. as well as the form of the head are perhaps indications that 

 the form belongs to the Ortalidae, like the strange Agrochira (Mesanopin) 

 tephritina, Enderlein, 1912, some specimens of which are present in the collection, 

 from Durban, 16th May 1915 (L. Bevis). I have seen an allied form from the 

 Philippine Islands, collected by Prof. C. F. Baker. 



XIII. Ptiloniola, Hendel, 1914. 



A genus recently erected by Prof. Hendelf and owing to its wing pattern 

 obviously related to the group of the numerous Oriental forms near Ptilona, Riooca, 

 Rioxoptilona, etc. 



Owing to the fact that in my species there are rudimentary but distinct oc, and 

 the posterior femora have not distinct bristles below, I will give here an account of 

 the generic characters, based on the single species known to me, viz. the following 

 one described as new : — 



Head in front view a little broader than high, not compressed ; occiput flat, only 

 slightly concave above, with the lower lateral swellings not much developed, but 



* Boll. Lab. Zool. Portici, viii, May 1914, p. 303, fig. iii. 

 t Wien. Ent. Zeit., xxxiii, 1914, p. 79. 



