330 2^^^6 Philippine Journal of Science isis 



middle and hind tibiae darkened. Wings as in T. mciccus, but 

 the apical third infuscated; there is also an infuscation on the 

 fourth vein between the cross-veins. 



86. Gymnonerius fuscus Wied. 1824. 

 Known also from Formosa through Hendel. 



87. Megamerina annulifera Big. 1886. 



A very distinct species, originally described from Celebes, 

 and well placed in this genus by its author. The frons bears a 

 distinct f rontoorbital bristle. 



88. Gobrya bacchoides Walk. 1860. 



I think that Walker is in error in describing the arista of this 

 species as pubescent; in the specimens before me it is very 

 clearly plumose as described and figured by Meijere for his 

 Javan G. simulans. This last, however, has a shining black 

 abdomen, while in G. bacchoides there are 2 yellow bands, 1 

 narrower at the end of the second segment and 1 broader at the 

 end of the third. The position of this strange insect among the 

 Tylinse is very doubtful; it has also but a superficial likeness 

 to the Psilinse ; it is probably better to place it in a special sub- 

 family Megamerininse with some other genera, such as Toxara, 

 Syringog aster, and Syrittomyia. 



89. Chyliza elegans Hendel. 1913. 



We have a female specimen of this species which was only 

 recently described from Formosa. It differs from C. selecta in 

 having the 2 basal joints of antennse deep black, the legs entirely 

 yellow, and the frons black toward the middle. 



90. Metopostigma sauteri Beck. 1911. 



This species is described as being common in Formosa. Our 

 specimens agree very well with the description, but the frons 

 shows in its anterior part an oblique brown spot on each side, 

 of which Becker says nothing. 



91. Chlorops ochracea Beck. 1911. 



Originally described from Java, and easily distinguished by 

 the black antennse and the wholly yellow pleurse and legs. 



92. Chromatopterum elegans sp. nov. . 



This pretty species seems to be more nearly allied to the Ethio- 

 pian C. delicatum than to the Australian C. pubescens. 



Female. — Length of body, 2.5 mm. Head whitish yellow; 

 occiput entirely shining black; frontal triangle of greater size, 



