Mallol^liai:;a from Birds of Costa Rica, Central America 47 



row, pitchy, submarginal, lateral bands on abdomen and thorax 

 and pitchy and deep brown markings on the head. 



Head, length 1.05 mm., width .80 mm.; conical, with rather 

 narrow, evenly rounded, bare front; large projecting palettes 

 connected by a clear band across clypeal suture ; sides of head 

 slightly sinuate in region of antennal fossae ; ocular notch shal- 

 low with three short bristles; eyes small, nearly obscured by a 

 black fleck; temples rounded, clear, with three weak hairs, pro- 

 duced backward to a point; occipital margin deeply reentering 

 and evenly concave, with a narrow black submarginal border ; a 

 brown occipital signature; antennal fossae small, inner border 

 obscured by a pitchy band fading to brown ; region between 

 antennal fossae and lateral margins, and a short space in front, 

 clear brown ; a dark brown marginal blotch at the ocular notch ; 

 pitchy brown antennal bands run forward from the occipital 

 band, passing along the inner margin of the antennal fossae, 

 thence forward to the palpi, with two round, darker spots on 

 them, between the fossae and palpi ; a short, curving band con- 

 nects their ends with the margins at the base of the palettes ; a 

 narrow, curving, longitudinal, brown band runs along the inner 

 borders of the anterior portion of the antennal bands. 



Prothorax hexagonal, lateral angles rounded, with a bristle 

 *and short hair; antero-lateral margin straight, postero-lateral 

 margin curving, with one weak hair; anterior and posterior mar- 

 gins deeply concave ; pitchy lateral bands, marginal in front of 

 lateral angles, submarginal behind, and joining anterior angles 

 of metathorax ; two narrow, median, longitudinal, pitchy lines, 

 and two diagonal lines in each side of the posterior portion of 

 segment. Metathorax larger than the prothorax, quadrilateral, 

 with sinuated, diverging lateral margins and truncate posterior 

 margin ; posterior angles Avith one hair and a bristle ; strong, 

 pitchy, submarginal bands running backward from the anterior 

 angles to the posterior margin of segment : a second band start- 

 ing at the anterior angles follows the margin backward to me- 

 dian portion of segment, then curving inward cuts the submar- 

 ginal band and passes forward to the posterior border of the 

 prothorax ; the enclosed portion between the marginal and sub- 



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