Mallop/iaga from Birds of Costa Rica, Central America 23 



lateral bands curving around on the posterior margin ; narrow- 

 brown lines cutting across from the middle to ends of lateral 

 bands; brown coxal lines visible; interior of segment golden 

 brown, margins smoky brown. Metathorax much larger than 

 prothorax, pentagonal, posterior margin sharply angulated on 

 abdomen, sides nearly straight, widely diverging and posterior 

 angles broadly rounded, with two hairs ; five hairs on each side 

 of posterior margin ; a pitchy brown spot in anterior angles ; a 

 deep brown lateral band, broadening rapidly posteriorly, with a 

 pitchy projection from posterior angles towards middle of seg- 

 ment ; meso-coxal lines visible ; interior of segment golden brown. 

 Legs short and stout, concolorous with body. 



Abdomen elliptical, with rounded, projecting posterior angles 

 bearing one hair in the third segment, two in the fourth, fifth, 

 and seventh, four in sixth, two on each side and four on the 

 posterior margin of eighth ; narrow lateral bands of smoky brown 

 on segments one to seven, broken by clear posterior angles and 

 projecting into anterior adjacent segments ; broad, brownish 

 transverse bands on segments one to eight, darker on posterior 

 segments, separated by broad, clear sutures and having two me- 

 dian longitudinal rows of larger quadrilateral spots on segments 

 two to seven ; eighth continuous ; ninth segment small, deeply 

 indented at tip, and with brown spots on each side ; a long hair 

 on the posterior margin of segments three to six ; a median row 

 of six hairs along posterior margin of segments one to six and 

 two on segment seven. 



Male. — Body, length 1.49 mm., width .55 mm.; head, length 

 .49 mm., width .46 mm. ; slightly darker than female with the 

 abdomen oval, ninth segment rounded, with about ten fine hairs 

 on posterior margin. 



One male and one female collected on Mernla grayi, at Juan 

 Vinas, Costa Rica, March, 1902. This form resembles Kel- 

 logg's A"", simplex, but diflfers principally in the longer and nar- 

 rower clypeus and the duskiness of the head and thorax. 



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