182 



INSECTS OF SAMOA. 



Length probably about 2-25 mm. 



1 $ (type). Savaii : Safune, rain forest, 2,000-4,000 feet, 3.V.1924 (Bryan). 

 This type is in the Bishop Museum, Honolulu. 



4. Syneches, sp. ? 



This species is certainly distinct from the others by reason of its more 

 shining thorax and different pubescence on the legs, but the single female before 

 me is much damaged and has neither wing complete, so that the necessary full 

 description cannot be given. 



There is no question of dust on the thorax having been rubbed off, because 

 the short dark hairs (similar in length to those of S. alienus) are present un- 

 damaged. The ocellar bristles are very long as in S. devius, with which species 

 it also agrees in the colour of the legs, except that the coxae and trochanters are 

 all yellow. The chief difference in the leg pubescence from S. devius lies in the 

 presence of still more distinct long bristly hairs behind the front and middle, 

 and beneath the hind tibiae ; there are especially two long bristly hairs behind 

 the middle tibiae standing out at right angles to the shaft, and antero- and 

 posteroventral rows of bristly hairs beneath the hind tibiae. The remaining 

 portion of one wing shows that the stigma is probably as in S. devius. 



Length quite 2-5 mm. 



Savaii : Salailua, 1 23.V.1924 (Bryan). 



Drapetis Meigen. 



The single species of Drapetis, while appearing to be congeneric with 

 D. exilis Mg., exhibits certain differences some of which may be of importance. 

 The second antennal joint bears a small but distinct bristle beneath, and, while 

 there are two pairs of ocellar bristles, there are no vertical bristles. The eyes 

 are practically in contact below the antennae. Seen in profile the head is more 

 globular and the disc of the thorax less raised above the level of the prothoracic 

 " collar " ; the disc is bare, and though obviously " rubbed " in all the specimens 

 before me, cannot, I think, even normally be clothed as in D. exilis ; at most I 

 suspect only uniserial tiny dorsocentral hairs, of which I find traces ; there 

 appears to be no distinct prescutellar dorsocentral, but there is an upcurved 

 humeral bristle. Venational differences include the shortness of the subcostal 

 vein, which ends practically opposite the middle cross- vein ; the radial vein is 



