84 H. C. EFFLATOUN. 



of this segment is shilling bronze and the upper niargiii lias the sanic 

 crescent-shaped marking as in the maie. The third segment is very 

 much like the second, but the transverse duU yellow band is somewhat 

 nearcr to the upper margin; the lower half of this segment, as 

 well as that of the fourth segment is shining bronze. The fourth 

 and sixth segments also possess broad whitish bands, which are 

 situated in their upper halves and the fifth segment is entirely 

 shining bronze. The seventh segment is very pointed and also 

 ail shining bronze. The vestiture of the two last segments is longer 

 and very pale. Venter resembles that in the niale, dull yellow with 

 the shining médian areas, but thèse appear much darker owing to 

 the black markings of tlie abdomen being secn by tiansparency. 

 id altères white. 



Lcngth from 84 to 12^ mm. 



There seems to hâve been some confusion-over the nomenclature 

 and stability of the two sexes in this species, and this has no doubt 

 arisen from the fact that the commonest form of the female is that 

 which bears the least resemblance to the maie as regards the abdo- 

 minal markings; inasmuch as the few writers who bave dealt with 

 this species hâve probably not had the chance to compare large 

 séries.' Jsennicke (1868) describes the female as E. tahanoïdes from 

 a spécimen in the Frank fort and Darmstadt Muséum found by 

 Ruppell in Massawa. Much later Ikcker (1902) states that he 

 found a spécimen in the Ezbekieh Gardens, Cairo, which corres- 

 ponded with Jsennicke's E. tahanoïdes and that "it was well des- 

 cribed by Ja;nnicke and easily rccognisable from him description". 

 Previously, immediately before his excellent description of E. 5- 

 lineatus maie, Becker also states "So far only the female was 

 described ; the maie scems to be unknown, and perhaps, as it has 

 the abdominal markings différent from tliosc of the female it is 

 described under anothcr namc; but amongst the African species 

 I hâve not boen able to find any which would enable me to arrive 

 to any definite conclusions as to its identity. For this reason I 

 give its complète description. There is no doubt that the two sexes 

 belong to each otlier, as 1 hâve always found thein together in the 

 same local.ities." 



It is curions that both Ja^nnickc and Jîecker sliould bave only 

 dealt with single female spécimens of E. tahanoïdes and that the 

 malc should never bave been found. I hâve not the least doubt 

 as to the correctness of Bccker's concluding statement that he found 

 the two sexes in the same locality — but I am also quite certain 

 that, had he searched more, he would undoubtedly hâve found in 

 the Ezbekieh Gardens— the other sex {i.e. the maie) and it would 



