26 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 82 



Eichh. these bristles are simple. This is important, as it has been 

 seen that the character " maxilla spinose " in Pityophthorns Eichh. 

 and " maxilla pilose " in Gnathotrichns Eichh., as used by several 



a-- 



FiG. 10. — Gnathotrichus sulcafus Lee. : Maxilla, outer aspect. 



C, cardo; (7, galea; P, palpus; i, 2, 3, first, second and third joint of the palpus; a, 

 articulation of the maxilla; b, stipes; c, palpiferal area; i, anterior emargination separating 

 galea and lacinia; k, dorsal setae of the galea; /, median setae of the galea; m, cardol setae. 



b- 



FiG. II. — Gnathotrichus siilcatus Lee.: Maxilla, inner aspect. 



C, cardo; L, lacinia; P, palpus; i, 2, 3, first, second and third joint of the palpus; o, 

 articulation of the maxilla; b, stipes; c, palpiferal area; d, subgaleal area; e, posterior setae 

 of the lacinia; /, dorsal setae of the lacinia; g, median setae of the lacinia; h, papilla. 



authors to separate Gnathotrichus Eichh. from the rest of the Pityoph- 

 thorinae does not hold, as will be shown in the discussion of the 

 lacinia and galea. The maxillae exhibit no specific differences of 

 importance in Gnathotrichus. The maxillae are illustrated in figures 

 10 and II. 



