Mallop/iaga from Birds of Costa Rica, Central America 53 



and short curving bands from bases of mandibles to lateral an- 

 gles of frontal margin, a pale brown occipital blotch; whole head 

 clear tawny brown. 



Prothorax hexagonal with expanded lateral angles, furnished 

 with one bristle ; coxal bands very plain ; a narrow transverse 

 chitin band ; posterior margin convex with four hairs. Meta- 

 thorax larger than prothorax. pentagonal, with posterior and 

 anterior margins truncate and sides slightly concave, strongly 

 divergmg ; a single spine in posterior angles; posterior margi-n 

 with a row of short, stout hairs ; anterior angles and lateral mar- 

 gins edged with dark brown; brown bands (starting at lateral 

 margins) cut across posterior angles into the abdomen. Legs 

 long and stout, especially the front femora, which are much 

 swollen ; concolorous with body. 



Abdomen large, oval, .posterior angles projecting slightly, 

 with two or three spines ; a long hair in segments seven and 

 eight, and two long ones on each side of the ninth, with a fringe 

 of fine . hairs between ; posterior margins of segments one to 

 seven with a row of short hairs, heavier, tawny, lateral bands 

 on segments one to eight, broken at the sutures ; whole interior 

 of abdomen an even tawny brown. 



A single female collected on Zarhynchns zvaglcri, Juan Vinas, 

 Costa Rica, March, 1902. 



Colpocephalum mirabile sp. nov., pi. VI, fig. 5 



Female. — Body, length 1.61 mm.,' width .66 mm. ; clear with 

 bands and markings of brown and pitchy ; metathorax enor- 

 mously developed, wider than head and abdomen and two-thirds 

 the length of abdomen. 



Head, length .34 mm., width .56 mm.; clear, with front, almost 

 evenly rounded except a slight depression at the projecting palpi ; 

 front with two long and six short hairs, one just before and 

 three just behind palpi ; a longer one pointing backward from 

 anterior portion of ocular emargination ; ocular fringe long and 

 thick ; eye very large, clear, with a black fleck ; temples ex- 

 panded and nearly evenly rounded, with four long hairs, occip- 

 ital margin deeply reentering, occiput straight ; mandibles me- 



175 



