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PROCEEDINGS OF THE NATIONAL MUSEUM 



medially, but not divided, while VII and VIII are continuous and IX 

 is divided. His description of the chaetotaxy agrees in ail essential 

 details. 



Genus ALCEDOECUS Clay and Meinertzhagen 



ALCEDOECUS CAPISTRATUS GUAMI, new subspecies 



Figure 2, a, b 



Types.— U. S. N. M. No. 58959, male and female adults, from 

 Halcyon cimuimomina cinnamomina, collected by Rollin H. Baker on 

 Guam Island (Marianas), March 8, 1945. 



Diagnosis. — Differs from the nominate form principally in the 

 narrower shape of the preantennary portion of the head, the hyaline 

 frons with rounded sides and slightly concave median portion; the 

 portion of the clypeal bands in front of clypeal suture is much larger, 

 both longer and wider. 



The thorax and abdomen seem to be about the same, although it is 

 not possible to make an intelligent comparison of some details owing 

 to the meagerness of Neumann's description and figure. He says, for 

 example: "Metathorax arrondi aux angles, aigu sur I'abdomen," yet 

 in his figure he shows this segment as flatly convex posteriorly. In 

 guami it is flatly convex. 



The present race differs from the unnamed form figured by Miss 

 Clay (from Halcyon leucocephala) in the structure of the clypeal bands, 

 the pleurites of the abdomen, and the abdominal chaetotaxy. In 

 Clay's figure the inner clypeal bands, which support both the clypeal 

 signature and the portion of the outer clypeal band anterior to the 

 suture, are shown as widely separated from the marginal bands, while 

 in guami the two are touching each other from the base of the inner 

 bands to the clypeal suture. The abdominal chaetotaxy of the new 

 race seems to be exactly the same as shown by Neumann for capistra- 

 tus, but the tergites in guami also have their inner ends broadly 

 rounded, not pointed, as shown by Neumann. 



