﻿310 PROCEEDINGS OF THE NATIONAL AIUSEUM vol. 102 



Tergite I: The anterior row of setae is slightly posterior of the 

 middle of the tergite. Setae 1 are 23^ apart, 9/z long; setae 2 are 

 equidistant from setae 1 and are 12ju long. In the posterior row, setae 

 1 are 6/i from the posterior margin, 37^1 apart, 25ju long; setae 2 are 

 29^1 from setae 1 and are 28m long; setae 3 are on the margin, 17/z from 

 setae 2 and are 22ju long. Very close and exterior to setae 3 are micro- 

 chaetae. Between setae 1 and 2 on the margin are supplementary 

 setae 22/1 long. A formula for tergite I would be: Anterior row 2-2; 

 posterior row 3-3 + 1-1 supplementaries +1-1 microchaetae. 



The number of setae agrees with that given by lonesco (1935) for the 

 genus, and by Gisin (1945) and Tuxen (1949) for E. armatum Stach, 

 except that none mentions the microchaetae. 



Tergite II : The anterior row is at the middle of the tergite. Setae 

 1 are 22^ apart; setae 2 are 28 fx from setae 1 ; setae 3 are 31)u from setae 

 2 ; setae 6 are posterior to setae 5 ; all are 8-1 Iju long. In the posterior 

 row, setae 1 are 32/i apart, 19 ix long and 6m from the margin; setae 2 

 are 35^ from setae 1 and are 28^ long; setae 3 are on the margin, 26^ 

 from setae 2 and are 32yLt long; setae 4 are 14^ long; setae 5 are 9/x 

 long. Between setae 1 and 2, and 2 and 3, are supplementary setae 

 22 and 23/z long. Formula: Anterior row 6-6; posterior ro^v 5-5+2-2 

 supplementaries. 



The number of setae differs from that given by lonesco (1935) for 

 the genus, and by Gisin (1945) and Tuxen (1949) for E. armatum 

 Stach, in that there is an additional pair in the posterior row. 



Tergite III: In the anterior row, the arrangement and number of 

 the setae are the same as for tergite II; all are 9-12^ long. The same 

 condition exists in the posterior row; the setae are the same length as, 

 or slightly longer than, those on tergite II, except that setae 4 are 

 29ai long. Formula: Same as tergite II. 



As noted on tergite II, there is one more pair of setae in the posterior 

 row than is given by lonesco (1935) for the genus, and by Gisin (1945) 

 and Tuxen (1949) for E. armatum Stach. 



Tergite IV (fig. 86, e): Anterior row (la-6a) in middle of tergite. 

 Setae 1 are 23^ apart; setae 2 are 34^ from setae 1; setae 3 are 25^ 

 from setae 2; they increase in length from 9-12^, except that setae 

 6 are 20^ long. The setae of the posterior row are spaced slightly 

 closer to one another than on tergite II; primaries (lp-5p) slightly 

 longer than on tergite III, except that setae 4 are 32/i long; supple- 

 mentaries (ls-2s) same as on tergite II. The posterior row is not so 

 close to the margin. Formula: vSame as tergite II. 



The number of setae agrees with that given by lonesco (1935) for 

 the genus, and by Gisin (1945) and Tuxen (1949) for E. armatum 

 Stach. 



