118 Descriptive Catalogue [1896. 



MyRMECOPTERA MIMA. 



Black, moderately shining with a bluish tinge on the head and 

 prothorax, dark blue underneath ; labrum with a median pale longi- 

 tudinal yellow band in the centre, broad in the male, narrow and 

 not reaching the apex in the female, prothorax cylindrical, slightly 

 constricted in front and behind and transversely plicate ; elytra very 

 elongate, slightly ampliate in the female, but a little attenuate behind 

 in both sexes; they have on each side five costee, the four dorsal ones 

 of which act as lateral walls to three series of broadly reticulate f ovese 

 having often a brassy sheen ; on the second costa runs a white line 

 reaching from the base to one-third of the length in the male, and 

 considerably less in the female, and there is a narrow, elongate 

 sutural white patch at the apex. Length 20-22 mm. ; width 

 b-Q^ mm. 



Allied also to M. ijolyliirmoicles , but different in the shape of the 

 elytra, which are longer, more ovate from the median part to the 

 apex in the male and less ampliate in the middle in the female ; the 

 sculpture is the same and the apical sutural patch is narrower. 



Hah. It is by mistake that I have given the habitat of Fort 

 Tuli in Zambezia to M. polyhirmoides ; it should be Salisbury ; but 

 M. mima was captured near Fort Tuli. 



Myrmecopteea invicta. Per., 

 Trans. Entom. Soc. Lond., 1894, p. 450. 



Bronze black, moderately shining on the upper side, under side 

 and legs cyaneous black ; head strigose ; labrum black, with a 

 median yellowish white longitudinal band in both sexes ; prothorax 

 quadrate, narrowed in -front and behind, with the disk raised on 

 each side and plicate ; elytra gradually ampliated from the base to 

 about two-thirds of the length, convex, ending in two acute spines, 

 long in the male, short in the female ; each elytron with five costae 

 reaching from the base to two-thirds of the length, with the first 

 and second a little shorter than the other three, and the intervals 

 reticulate ; on the second costa a narrow white line runs from 

 near the base to about one-third of the length, and behind, edging 

 the dorsal costas and extending more or less diagonally from the 

 outer margin to the inner costa, is a sinuate silvery patch ; this 

 patch is generally broader in the male than in the female, and 

 I have seen a male example where it had disappeared altogether. 

 Length 15-20 mm. ; width 5-6 mm. 



A near ally to M. mauchi, Bates, but half the size ; the sculpture 

 of the elytra is identical, but the costae are better defined ; the inner 

 one is shorter than the others, the fourth and fifth unite towards the 

 apex in the male, but seldom in the female, while in the female of 



