22, 5 Muir: Achilixius, a New Genus 485 



margin, ^deagus cultriform, the dorsal margin straight, 

 broad, the ventral edge narrow and formed of two thin lamina 

 between which is the orifice. The bar across pygofer strong, 

 arising from the angulation on the middle of lateral margins. 



Luzon, Mountain Province, Baguio (Baker), 1 male. Type 

 No. 1045. 

 Achilixius tubulifer (Melichar). Plate 1, figs. 2 and 3. 



Syntames tubulifer Melichar, Philip. Journ. Sci. § D 9 (1914) 269, 

 pi. 1, fig. 2; Muir, Philip. Journ. Sci. § D 12 (1917) 59. 



Male pygofer small, laterally compressed, margins entire, 

 crossbar not very strong or chitinous. Anal segment short 

 and broad, in dorsal view nearly round, with an obscure emar- 

 gination at apex. Genital styles small and narrow, apex 

 rounded, with the inner edge drawn out into a small point and 

 a small projection on the outer corner. ^Edeagus subcultrate, 

 with the orifice down the ventral or anterior edge. 



LUZON, Laguna Province, Los Banos, Mount Maquiling, and 

 Mount Banahao (Baker and Muir) , a number of specimens. 

 Achilixius sandakanensis sp. nov. Plate 1, fig. 4. 



Male.— Length, 2 millimeters; tegmen, 3. In coloration this 

 species is similar to A. singularis, but the general color is darker 

 and the legs are marked with obscure fuscous bands. 



Pygofer larger than in A. tubulifer, the ventral edge produced 

 roundly, the crossbar nearer to the anal segment than in A. 

 singularis, lateral margins entire or very slightly sinuous. Anal 

 segment large, anus about one-third from base, in dorsal view 

 much longer than broad, apex rounded. Genital styles flat and 

 broad, subequal in width throughout, apex rounded with a 

 strong, slightly curved spine on the inner surface, on the outer 

 margin near apex slightly rounded. iEdeagus strong, chiti- 

 nous, subcultrate with the base, wide and curved upward nearly 

 at a right angle; apex acute, produced into two fine points; 

 orifice along ventral margin. 



Female.— Length, 2.2 millimeters ; tegmen, 3. In color similar 



Borneo, Sandakan (Baker 10172), 5 males and 2 females. 

 Type No. 1046. 

 Achilixius davaoensis sp. nov. Plate 1, fig- 5. 



Male.— Length, 2.3 millimeters; tegmen, 3.5. In coloration 

 similar to A. singularis, but the light color at apex of veins not 

 so distinct. 



