84 THE entomologist's eecord. 



Myrmedonia robusta n.sp. 



Bobust, convex, navicular, shining, pale reddish-ochraceous, the head pitchy 

 brown behind the level of the antennal tubercles. Antennae compressed, 

 ferruginous, mouth parts and legs reddish-testaceous. Length 10mm. Breadth 4mm. 



Head transverse, constricted behind, the neck broad, the eyes large and 

 prominent, the mandibles produced and falciform, the right one with a small 

 tooth at the middle of the inner border; front between the insertion of the 

 antenna3 strongly raised, the vertex somewhat depressed transversely; sculpture 

 consisting of a very few fine punctures near the eyes and a very fine and indistinct 

 ground sculpture. Antennae as long as the head and thorax together, all the 

 joints (except the 1st) compressed, the 2nd a little shorter than the 8rd, the 4th to 

 the 10th all a little longer than broad, gradually decreasing in length, the 11th 

 conical shorter than the two preceding together. 



Thorax nearly twice as broad as long, widest at the junction of the middle 

 and posterior thirds, the sides from thence strongly rounded and narrowed to the 

 obtuse anterior angles, feebly sinuate in front of the posterior angles which are 

 rectangular, the base bisinuate ; disc with trace of median line, the sides broadly 

 impressed throughout ; the lateral margins raised, puncturation very fine and very 

 sparing; ground sculpture exceedinglyiine transversely retiform; pubescence very 

 sparing, erect. 



Elytra as long as, but broader than, the thorax, transverse, strongly sinuate 

 internal to the postero-external angle, puncturation very fine and sparing, 

 pubescence erect consisting of longer and shorter hairs ; ground sculpture very 

 finely coriaceous. 



Abdomen narrowest behind, the side margins much elevated, practically 

 impunctate and glabrous. Tibiee compressed. • 



S : 8th dorsal segment with the posterior border broadly rounded and 

 obscurely crenulate ; 6th ventral segment produced, broadly and very slightly 

 emarginate posteriorly. 



Hab., Mumbwa, September 2nd, 1913. Flying in a room at night. 



Myrmedonia dolbnani n.sp. 



Reddish-ochraceous, scarcely shining, the head behind the antennal tubercles, 

 black; abdomen ferruginous ; antennae, mouth parts and legs reddish-testaceous. 

 Length 8mm. ll-3mm. 



Head black with greasy lustre only ; the front reddish-testaceous and more 

 shining, longitudinally elevated in the middle line ; the vertex with a fine 

 impressed line not extending as far as the posterior border ; the sculpture 

 consisting of minute (and by no means close) granular elevations, each bearing a 

 yellow hair, and a dense coriaceous ground sculpture. Antenna of the length of 

 the bead and thorax together, the 2nd joint fully half as long as the 1st, the 3rd to 

 the 7th longer than broad, gradually decreasing in length and slightly compressed, 

 the 8th to the 10th scarcely longer than broad and also slightly compressed, the 

 11th oblong, fully as long as the two preceding together. 



Thorax strongly transverse, widest at the middle, the sides rounded from base 

 to apex, but rather more narrowed in front, the anterior angles rounded, the 

 posterior obtuse ; disc with a fine impressed line in the middle and a transverse 

 fovea before the scutellum ; the sides broadly impressed throughout, the lateral 

 margins raised : sculpture and pubescence similar to that of the head. 



Elytra broader and a little longer than the thorax, transverse, with similar 

 sculpture to that of the head but closer and stronger. 



Abdomen more shining and more reddish than the fore-parts, very finely, 

 sparingly and asperately punctured, yet more sparingly on the 7th and 8th 

 segments. 



^ : head on either side of the vertex with a large crateriform setiferous pore ; 

 thorax broader and the sides more rounded than in ? . 3rd dorsal segment of the 

 abdomen with the posterior border produced, raised and broadly emarginate, the 

 emargination bounded by a short blunt tooth on either side ; 4th with a tubercle 

 in the middle; 5th with a small tubercle on either side close to the lateral margin ; 

 7th with a tubercle immediately in front of the posterior margin in the middle and 

 longitudinally impressed laterally ; 8th with a tubercle in the middle, the posterior 

 margin obscurely crenulate in the middle. 



Hab., Kashilu, at light. 



