Mallopliaga from Birds of Costa Rica, Central /Inicrica 27 



Male. — Body, length 1.46 mm., width .38 mm.; head, length 

 ,38 mm., width .33 mm.; diflfers greatly in size from the female, 

 shape of abdomen, size of legs, and antennae. 



Head markings the same ; first segment of antennae greatly 

 swollen and lengthened, remaining segments snbcqual, but 

 slightly larger than in female and third having a slight protu- 

 berance ; two posterior pairs of legs larger than in female, the 

 posterior pair being as long as the abdomen; abdomen short, 

 thick, almost parallel sided and abruptly pointed by the last three 

 segments, which are much aborted ; transverse bands continuous 

 and paler. 



One male and one female collected from Ortalis cincreiceps 

 at Juan \ inas, Costa Rica, March, ujoj. 



This form is of the type of iiicsophcliiis and intermedins, re- 

 sembling most intermedins, from which it is distinguished by 

 the much shorter metathorax, with truncate posterior margin, 

 by fuller and rounder temples, and by paler abdomen. 



Lipeurus assesor Gieb., pi. Ill, fig. 5 



Giebel, Insccta cpizoa, p. 207. 



Piaget, Les Pedicn!i)ies, p. 294, pi. XXIV, fig. 3. 



Female. — Body, length 3.45 muL, width .63 mm. ; head, 

 length .76 mm., width .50 mm. 



This species is easily distinguished by the long, almost straight 

 sided head, with rounded front, and concave occiput ; the peculiar 

 curving marks on each side of the front, the black ocular blotches 

 and dusky temples in strong contrast to the clear interior of the 

 head ; the tiiorax has heavy, lateral, blackish bands, while each 

 segment of the abdomen is furnished with broad, black, lateral 

 blotches and dusky transverse bands. 



A single specimen collected from Gypagns papa at Pozo Azul, 

 Costa Rica, June, 1902, 



Although Piaget gives only a drawing of anterior half of head 

 and last two segments of abdomen, his description is good and, 

 together with Giebel's, leaves no doubt but what this specimen 

 can be referred to Giebel's species. 



149 



