XII, D, 2 Muir: Derbidx of the Philippine Islands 79 



subparallel-sided, anus in middle, apical half composed of two 

 long spines at right angles to basal half; genital styles reaching 

 beyond anal segment, somewhat spatulate, dorsal edge curved 

 dorsad, ending in a strong spine, which is turned inward, ven- 

 tral edge arcuately produced on apical half, notched about the 

 middle, basad of the notch with two small, round projections on 

 inner surface; sedeagus large and complex. 



Length, 3.6 millimeters; tegmen, 5. 



Female. — Similar to the male, but larger and the infuscation 

 much darker. Antennse club-shaped. The pregenital sternite is 

 longer than broad, flattened or even slightly concave, posterior 

 edge obtusely, angularly produced. 



Luzon, Laguna, Mount Maquiling (Muir), on bird's-nest fern; 

 Tayabas, Mount Banahao (Muir). 



Unfortunately the genitalia of Mysidioides sordidum (Muir) 

 and M. borneensis (Muir) are not described, and I am not in a 

 position to compare them with this species, but the coloration 

 differs somewhat. The Banahao specimen is much darker and 

 the red on the veins is much plainer. 



I have other species, represented by females only, which I 

 refrain from naming. 



DERBIN.^ 



, Genus ZEUGMA Westwood • 



Zeugma valdezi sp. nov. 



Zeugma vittata Melichar, MS. (not of Westwood) . 



Width of vertex and face as in Zeugma javana Muir, nar- 

 rower than in Z. vittata (Westwood). 



Brown or reddish brown; a dark longitudinal mark passing 

 over vertex, face, and clypeus; five dark marks on mesonotum, 

 the outer ones faint; abdomen darker; faint fuscous bands on 

 first and second tibise. Tegmina very light fuscous or reddish 

 yellow, darker along veins, veins reddish brown, darker fuscous 

 in subcostal cell, over apex of radius, and on apical cross veins, 

 lighter areas around infuscated apical cross veins, in middle of 

 median sectors, and over base of radial cell; wings fuscous, 

 reaching a little beyond middle of tegmina, veins brown. 



Ventral edge of pygophor produced into a short, wide process 

 at middle, the apex widely and angularly emarginate; lateral 

 edges produced into wide angular plates, the ventral edge of pro- 

 jection obtusely, angularly produced in middle; anal segment a 

 little longer than lateral plates, longer than broad, widest near 

 apex, which is round with a slight angular emargination, making 



