( xcvii ) 



" On Bee. 28th 1 got a beautiful Mutilloid spider. I was 

 collecting on a road through the bush and picked up several 

 Mutillids. But one turned out on closer investigation to be 

 the spider which 1 send in a tube with the Mutilla it resembles, 

 taken at same time and place. It used its fore-legs to mimic 

 the antennae of the Mutilla, just as does a spider mimicking 

 an ant. Its manner of movement was altogether Mutilloid, 

 and its colours exactly (during life) matched the dull red and 

 black of the Mutilla. I wonder if Mutilloid spiders have 

 been described before \ 



The specimens in the tube are accompanied by a corre- 

 sponding note which also states that the " colours exactly 

 matched." The Mutilla appears to be the same as a $ taken, 

 Dec I '.hi:;, in cop. with a very different $, by Dr. Marshall at 

 Bulawayo, and named by the late Col. Bingham M. charaxus, 

 Sm. Mr. A. W. ric v ard-Cambridge considers that the 

 spider belongs to Prosthesima (Drassidae) or a closely allied 

 genus, and that the species is near P. albomaculata, 0. Pick.- 

 Camb.j taken by Dr. Marshall as a Mutilloid mimic, at Salis- 

 bury, Mashonaland (1898-99). See Trans. Ent. Soc, 1902, 

 p. oil; Proc. Zool. Soc, 1901, p. 11, pi. v, figs. 2-2c. 



('apt. Carpenter took the same species of spider later at 

 Lulanguru (see p. exxxv). At this locality and at Ndala he 

 also observed and captured several examples of black, white- 

 marked Carabidae together with their Cicindelid mimics. 

 All the species are different from those observed and figured 

 by Dr. Marshall in Trans. Ent, Soc, 1902, pp. 511-515. and 

 pi. xvii, and some of them appear to be undescribed. ('apt. 

 Carpenter did not comment upon the general Mutilloid effect 

 of the black-and-white pattern during; rapid movement. 

 Dr. Marshall (ibid., pp. 511. 512) point -s out that it is this 

 part of the Mutillid pattern and not the red thorax which 

 attracts attention in life. 



Capt. Carpenter's captures of members of this association 

 are as follows. On Dec 18, 1916, at Ndala, the Mutilloid 

 Carabid Piezia sp. was, together with its Cicindelid mimic 

 Dromica (Myrmecoptera) erikssoni, Horn, '"Taken on a road, 

 almost in the same spot." The mimic bears the note " This 

 does not fly as readily as. many Cicindelids." Then, at the 



PROC. ENT. SOC. LOND., Ill, IV. 1918. C 



