242 MR. li. m'laciilan on a systematic 



-j-Q-enus Tmesibasis, n. g. 



Wings elongate, tlie basal portion of the inner margin very 

 strongly excised and petiolate, longly appeudiculate in the 

 anterior pair: after the narrow base rather broadly dilated 

 and nearly oval, acute at the apex : network rather open ; 

 branch of the lower cubitus confluent with the postcosta in all 

 the wiugs. 



AntenncB much longer than the wings, furnished with verticillate 

 hairs at the base : club extremely long and slender. 



Thorax scarcely villose. 



Abdomen slender, shorter than the wings (without appendices in 

 the c??). 



Legs with the spurs as long as the first three tarsal joints. 



Hah. Mozambique. 



Pounded on a single species, Ascal. laceratus, Hagen, which I 



have not seen : the characters have been drawn up from Ilagen's 



careful description and beautiful figure. A very sharply defined 



genus, without a parallel among the Iloloplithalmi ; the formation 



of the antenn£B approaches that of Colohopterus among the Schi- 



zophtTialmi. 



Species. 



1. T. LACERATA, Hagen. (Ascal. laceratus, Hag., Peters's Reise nach 

 Mossamb. p. 92, pi. v. fig. 3.) 



Division II. SoHizoPiiTnALMi. 



J Genus Cokbuleceeus, liamhnr. 

 (Suphalasca, ^ar^., Lefebv., Hag.) 



Wings ample, usually broad, but varying much. Anterior pair 

 with an evident excision at the extreme base of the inner mar- 

 gin, not appeudiculate, dilated in the middle, inner margin con- 

 tracted at the point where the cubiti terminate ; apex acute 

 posterior pair with the anal portion of the inner margin ordi- 

 narily deeply sinuate in the cf , slightly sinuate in the $ , 

 broad at the anal portion, contracted at the termination of the _ 

 cubiti, no transverse branch of the lower cubitus ; postcosta 

 strongly sinuous-: network open. 



Antennce as long as the wings, the extreme base with a few verti- 

 cillate hairs ; club elongately spoon-shaped ; a very dense tuft 

 of hairs between the antennse. 



