Mallop/ia^^a from Birds of Costa Rica, Central America 51 



Colpocephalum extraneum sp. nov., pi. VI, fig. 3 



Female. — Body, length 2.15 mm., width .76 mm.; angulated 

 before and behind, legs long and stout, meso- and metathoraN 

 divided, metathorax extraordinarily long and shield shaped, and 

 abdomen constricted posteriorly. 



Head, length .45 mm., width .65 mm.; front very flatl\ 

 rounded, sides sinuate, there being a depression at the point 

 where the palpi project and at the ocular emargination ; fronl 

 with six short hairs, sides with four; palpi projecting by the 

 long apical segment ; an antennae projecting by almost all of 

 last two segments ; ocular fringe very thick and long ; temples 

 expanded broadly, roundly angulated before and behind, with 

 four long hairs on the lateral margin ; occipital margin con- 

 cavo-convex, with a narrow pitchy border; pitchy ocular 

 blotches ; mandibles rather small, points pitchy ; brownish bands 

 running from end of ocular blotch to frontal margin ; a brownish 

 band, curving backward and broadening medially, connects the 

 anterior portion of ocular blotches ; whole temples clear brown. 



Prothorax hexagonal, with lateral angles produced to a blunt 

 point, furnished with three spines ; anterior and antero-lateral 

 margins straight ; postero-lateral slightly concave and posterior 

 convex ; posterior angles with one hair, a median ventral blotch 

 in anterior portion of segment; narrow brown edging to whole 

 segment ; dark brown coxal bands in the form of a flattened 

 semi-circle across the postero-lateral portion of segments. 



Mesothorax distinctly divided from metathorax, with convex 

 lateral and truncate posterior margins ; a pitchy brown band 

 around sides and anterior angles, broken medially, with short 

 bands running backward from their ends. Metathorax very wide 

 and long, at least three-fourths as long as abdomen ; sides 

 straight, diverging; posterior margin elliptical, the region pos- 

 terior to the lateral angles being longer than that anterior to 

 them ; lateral angles very obtuse, with three spines ; sides of pos- 

 terior margin with three long hairs ; lateral margins with a nar- 

 row pitchy band curving across lateral angles ; dark brown bands 

 running inward from posterior portion of lateral margins, al- 

 most meeting medially; a lunate ventral patch in median ante- 



173 



