Apbldidae of Formosa.— 4. Jjl 



setae on the dorsum. Eyes protruding, with distinct ocular tubercles. Frontal 

 tubercles almost as long as the 2nd antenna] joint, on the inner side distinctly 

 convex and provided with a few very small setae. Antennae very long and 

 slender, imbricated, furnished with a few very small setae; the 1st joint much 

 larger than the 2nd, granular on the surface as on the head, provided with a 

 few longer bristles; the 3rd without Eensoria; the 5th with a small apical 

 sensorium; the relative length of joints about as follows: 111-117. IV-97, V-67, 

 VI-171 (24+147). Rostrum reaching the hind coxae. Thorax and abdomen 

 irregularly reticulated on the dorsum without tubercles. Hairs on the hind part 

 of the abdomen lunger. Cornicles large, cylindrical, rather stunt, gradually 

 tapering, scarcely expanded at the base, not curved, faintly imbricated, reticulated 

 mi the distal portion, almost as lung as the 4th antennal joint, about 3.5 times 

 as long as the Cauda, about 4 times as long as wide at the base. Cauda rather 

 stout, when seen from above a little longer than wide, narrowed on the distal 

 half, the basal part almost as stout as the proximal part of the cornicle, provided 

 with 2 pairs of long lateral bristles, about as long as the basal part of the 6th 

 antennal joint. 



Legs very long and slender; tibiae as stout as or stouter than the 3rd 

 antennal joint, furnished with some moderately long or rather short setae; tarsi 

 short, scarcely imbricated, bind tarsi a little shorter than the basal pari of the 

 6th antennal joint. 



Length of body — about 1.8 mm. Antenna — about 2.5 nun. 



Cornicle — about 0.5 mm. 



In the specimens preserved in alcohol the body is blackish brown in color. 

 with the cornicles black. The cornicles are variable in length in the specimens 

 collected in Formosa. 



Winged viviparous female 



Wings hyaline, very slightly clouded with fuscous along the 1st oblique of 

 the front wing. Head smooth on the surface, provided with about 10 very short 

 setae on the dorsum. Frontal tubercles short, shorter than the 2nd antennal 

 joint : somewhat convex on the inner side. 



Antennae very long and slender, furnished with a few very small setae: 

 the 1st joint much larger than the 2nd. not smooth on the surface: the 3rd 

 joint a little imbricated on the base, provided with about 28-33 circular sensoria 



