CAMERON, FO8SOBES. 227 



Scoliidaa. 



Triliacos nigrita, FAB. 



ii/t/ri/d, FAB., Spec. Ins. I, 452, 3. - Triliacos iiitjrita, SAUSSUUK, Cat. Spec, 

 Gen. Scoli., ;',f>. KiUnnntdjaro. Kibonoto, 10001900 in. October. One $. - - This 

 species mimics Discnlia alaris, SAUS. It is much more strongly and closely punctured 

 all over than any specimens of that species I have seen; the smoky part of the wings 

 (anterior and posterior) is much less extended, it only, in the fore wings, forming a 

 narrow stripe which just reaches the anterior portion of the cubital cellules, and, at the 

 base, it does not reach the posterior part of the discoidal, the apical discoidal being 

 hyaline, the second having a narrow cloud along the fore margin and extending in a 

 broadly rounded curve to the posterior part of the apex; there is a difference, too, in 

 the apical transverse cubital and transverse median nervures; in alaris these are rounded, 

 in n'ujriia distinctly angled in the middle. 



Discolia alaris, SAUSS. 



Cat. Sp. Gen. Scoli., 85 and 282. - - Kilimanjaro: Kibonoto, 1300 1900 m. May. 



SAUSSURE hints, /. c. that Triliacos nigrita may be a form of alaris with two, 

 instead of one, discoidal cellules. There is, however, a difference in the form of the 

 alar neuration; in niarifa I he radial nervure projects distinctly beyond the apical trans- 

 verse cubital, while in alar in it only extends to it; in the latter the apical transverse 

 cubital and the transverse median are broadly rounded in the middle; in niurifa nar- 

 rowly angled, the transverse median being sharply angled below the middle. 



I). di^Kirilis. KIRBY (Trans. Ent. Soc. 1889, 445, PI. XV, f. 7) is very closely 

 related to alaris, but is, I consider, a distinct species, it having the body much more 

 strongly and closely punctured, the clouds in both wings are much more extended, the 

 radius extends distinctly beyond the cubital cellules, and there is a well marked differ- 

 ence in the form of the apical submedian cellule; in dis/tari/ix it becomes gradually 

 roundly narrowed from the lower part of the base to the upper part of the apex, the 

 discoidal nervure issuing from distinctly above its middle; in alaris the upper and lower 

 parts are straight, oblique, the upper part more oblique than the lower, and the discoidal 

 nervure issues from the middle. In alaris, it is to be noted, however, that the extent 

 and depth of -colour of the clouds in the wings vary. 



Discolia ruficornis, FAB. 



Scolia ntfironiix, Ent. Syst., 11, 230, 9. Ih'srolia ntjirnna's, SAUSS. Cat. Spec. 

 Gen. Scoli., 85, 62. 



Kilimantljaro, Kibonoto low lands. January. Usambara. 



D. nn-laiiaria, BLUM., seems to be a form of nijh-onns with black antenna?. 



