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PROCEEDINGS OF THE NATIONAL MUSEUM 



The male has narrow, pitchy pleurites on segments II, III, and IV, 

 with apparently all tergites and sternites continuous across the abdo- 

 men but separated from one another by hyaline strips. The sternal 

 plate bearing the long spines is continuous between the two clusters 

 of four long, heavy spines, but the posterior margin is concave and 

 set with coarse hairs of about the same length as the spines. The 

 figm-es of the two sexes show clearly all the complicated structure and 

 chaetotaxy of the whole body. The male genitalia are of the ordinary 

 type and size for the genus. The legs are faintly pigmented but have 

 narrow pitchy bands along both sides of aU tibiae and femora 2 and 

 3, with a pitchy spot near ends of all tibiae and at posterior ends of 

 all femora. There is a patch of strong setae on third femora, and all 

 tibiae and femora have numerous heavy spines along both margins. 

 The species is represented by a large series of both sexes, taken on four 

 individuals of the type host. 



MEASUREMENTS OF TYPES OF MYRSIDEA BAKERI 



Structure 



Male 



Length Width 



Female 



Length Width 



Body-- 



Head (at temples) 



Prothorax..- 



Pterothorax 



Abdomen 



Basal plate 



Parameres 



Endomera 



1.60 

 .38 

 .25 

 .326 



1.02 



.41 

 .09 

 .108 



0.564 

 .337 

 .45 



.52 



.11 



.40 

 .26 

 .35 



1.10 



0.61 



.456 



.727 



. 738 (seg. 1) 



. 60S (seg. 6) 



.13 



KCVEHNKriVr PRiNIING OFFICE; 15 



