214 SJOSTEDTS KILIMANDJAKO SIERU EXPEDITION. 8: 7. 



part of thorax covered with long black, the ventral with white hair; last segment 

 punctured, the apex and the centre smooth. 



The species of Dolicliomutilla described above may be separated by the following 

 table. 



1 (8) Thorax red. 



2 (7) Apical slope of metanotum smooth, keeled down the middle. 



3 (6) Ventral keel with 2 teeth. 



4 (5) The teeth large, united at the base; length 21 mm. tuberculicollis. 



5 (4) The teeth only moderately large, clearly separated; length 18 mm. kibonotoensis. 



6 (3) Ventral keel with 3 teeth. apicicarinata. 



7 (2) Apical slope of metanotum reticulated throughout. apicireticulata. 



8 (1) Thorax black (apical slope of metanotum reticulated; ventral keel with 3 teeth). 



heterodonta. 



B. The (f species of Mutilla in the collection may be grouped thus: 



1 (8) Scutellum pyramidal, conical, distinctly raised above the mesonotum. 



2 (5) Thorax more or less red, the abdomen black. 



3 (4) Pro- and mesonotum only red. danana. 



4 (3) Thorax entirely red. cana. 



5 (2) Thorax entirely black, the abdomen banded with red. 



6 (7) Wings uniformly dark violaceous, only the 2nd abdominal segment red, length 18 mm. 



leucopyga, KL. 



7 (6) The 2nd and 3rd abdominal segments red, the wings hyaline; length 13 mm. 



udana. 



8 (1) Scutellum not conical, hardly raised above the level of the mesonotum. 



9 (22) Entirely black. 



10 (21) The pubescence on abdomen white. 



1 1 (20) The 2nd cubital cellule large, the 2nd abscissa of the radius as long, or almost as long as the 3rd. 



12 (19) Wings uniformly dark fuscous violaceous. 



13 (16) 2nd abdominal segment without hair bands or marks on apex. 



14 (15) The central basal area on base of metanotum elongate, twice longer than wide, the 2nd transverse 



cubital nervure broadly rounded; length 19 mm. hellotia. 



15 (14) The base of metanotum with 2 small squarish areee in the centre; the upper (and smaller) part 



of the 2nd transverse cubital nervure straight, only slightly oblique, the lower part turned sharply 

 towards the base of the cellule, the 2 parts at their junction forming an angle. Length 16 mm. 



phegea. 



16 (13) The 2nd abdominal segment with apical hair band. 



17 (18) The pubescence on the head and thorax black, the base of metanotum and pronotum not densely 



pilose; 3rd antennal joint whitish. spilotoma. 



18 (17) The pubescence on head and thorax white, the pronolum and base of metanotum densely pilose; 



the 3rd antennal joint immaculate. trichionota 



19 (6) Wings not uniformly fuscous, the base being hyaline. pilidecorata. 



20 (11) The 2nd cubitalcellule small, narrowed in front, the 2nd abscissa of radius one fourth of the 



length of the 3rd. microphatna. 



21 (10) The pubescence on abdomen dense and golden. pulchrihirta. 



22 (9) Not entirely black, the abdomen or thorax red, wholly or in part. 



