LIST OF THE ANOPHELINES OF THE MALAY ARCHIPELAGO. 



81 



This variety much resembles N. annulipes, Walker, as described by Theobald, but 

 the female palpi are different in the latter, the apical half of the 2nd joint being 

 all white. Also, there is a marked hkeness to N. punctulata, Don., but the proboscis 

 of this species has a Hght apical half and the black apical ring of the 2nd palpal 

 joint is much narrower. 



3. Stethomyia aitkenii var. insulae-florum, Swell. (1920). 



The imago is not to be distinguished from S. aitkenii. 



Larva (fig. 4). Length 5 mm. Colour dark green. Antenna with small branched 

 hair. Median clypeal hairs close together, simple, nude ; external clypeal hairs 

 simple, nude, length J of median ones ; posterior clypeal hairs far apart, short, 

 with 3-6 branches ; occipital hairs with 3-6 branches. Shoulder hairs with only 

 the median one inserted on a strong root, carrying about 11 branches, the internal 

 one with about 8. Small fans on thorax and abdominal segment i, carrying 13-15 



Fig. 4. Larva of Stethomyia aitkenii var. insulae-florum : a, clypeus ; 

 b, antenna ; c, shoulder hairs (left) ; d, leaflets. 



non-serrate leaflets ; segments ii-vii with complete fans, the leaflets very indistinctly 

 serrate, ending in a long point, no filaments. 



Breeds in running water in the weeds along the edges, in hilly regions. With the 

 variety papuae it is the only representative of this species in the AustraUan region 

 of the Archipelago. Only once has it been found in Java (Island of Noesa 

 Kembangan on the South Coast). 



The larva is somewhat like that of S. culiciformis, James, but the club-shaped 

 antennal hair is wanting and the balancing hairs on abdominal segments i-iii are 

 of the usual type and number. 



4. Stethomyia aitkenii var. papuae, Swell. (1920). 



Although no adults could be bred from this larval variety, we feel sure that it 

 hkewiss belongs to this species. It much resembles the larvae of the preceding 

 variety, but is separated from it by the fact of the internal shoulder hairs being 

 very small and carrying two branches only. The leaflets of all the fans show no signs 

 of serration. 



