272 NOVITATES ZOOLOGICAB XXIII. 1916. 



NEW AFRICAN GEOMETRIDAE. 



By LOUIS B. PKOTJT, F.E.S. 



Subfamily OENOCHROMINAE 

 1. Debos purpureofusa spec. nov. 



S, 16 mm. Head and palpus orange-brown ; palpus rather shorter than in 

 iratus Swinh. Thorax and abdomen above coocolorous with wings, beneath (with 

 legs) orange-brown. 



Forewing with SO 1 running into C ; glossy dark fuscous (in some lights 

 blackish), shot with strong purple reflections, especially along costal and distal 



margins. Hindwing with C anastomising with SO to about middle of cell, 



concolorous with forewing, the purple reflections strongest distally and in abdo- 

 minal region. 



Underside without purple reflections. 



Portuguese East Africa: Kola Valley, April 5, 1913 (S. A- Neave). Type in 

 coll. Brit. Mus. 



Certainly near D. iratus, although the venational differences could be made the 

 basis of a separate genus. 



Adesmobathra gen. nov. 



Characters of Zeuctophlebia Warr., with the following differences : 



Frons strongly protuberant. Second joint of palpus more shortly scaled. 

 Male antenna shortly ciliated. Male hindtibia strongly dilated, with terminal 

 spurs obsolete. Forewing with apex rather more acutely produced. Hindwing 

 with C rather more shortly approximated to SC, SC 2 arising rather farther before 

 end of cell. 



Type of the genus : Adesmobathra ozoloides sp. nov. 



A very interesting genus, probably throwing light on the origin of Ozola, 

 which has hitherto stood isolated and was made by Meyrick the type of his family 

 [subfamily] Desmobathridae. The species has precisely the facies, scaling, etc., of 

 Ozola, but the costal vein of the hindwing is typically Oenochromine, and the ? 

 hindleg and the venation of foreleg are less specialised than in Ozola. The genus 

 may be placed after Zeuctophlebia. 



2. Adesmobathra ozoloides spec. nov. 



c??, 25-27 mm. Face whitish grey, mixed with brown. Palpus whitish 

 grey, above mixed with brown. Antenna brown-grey. Vertex and collar mostly 

 brown. Thorax and abdomen whitish grey, irrorated (the abdomen above somewhat 

 banded) with brown. 



Forewing whitish grey, irrorated with brown ; lines fine, brown, mixed with 

 fuscous ; antemediau from before one-third costa, oblique outward, angled sub- 

 costally, slightly curved inward at hindmargin ; postmedian from three-fifths costa, 

 forming in its anterior half a very strong, curved, outward projection, behind the 

 cell extremely slightly incurved, then straight to three-fifths hindmargin ; a very 

 faint additional line connate with this at costa, less strongly oblique outward, 



