2(;i 



Notes on Synagris. 



r.v .1. c. i;i;ii>\\i:i,i,. 



The liciuis Si/iuif/fis is a cliarartc risl ic iMliiopiaii p'lnis ot 

 \vasi)s of wliicli three s])ecies were lakeii al Oloke Meji, Xiii'e- 

 ria (S. (■(innihi Liiiiu, N. sicIicIkuki Satissui'e ami N. (itiiphs- 

 siiiiii Ko\\\ ). 



Of lliese the most ahini(hnit was N. coinithi. This speeio-s 

 and >'. slrliclidiKi were eoiiiiiioiily foiiiid visit iiiu' llie iarii'e pea- 

 like flowers of a s])eeies of Cnihildi id . llieir loii'^' toiiii'lies eii- 

 ahliuu' them to secure the iieetar eoiieealed wilhiii. 



'Idle male of N. coruHht is i-emai'kahh' for the peeidiar 

 anth'r-like jtroeess <hv(dope(l on ihe hase of the maiidihles 

 and ])rojeetini;' forward ahont four times the lenuth of tlie 

 nian(lil)le. In some indi\idnals this is miudi more feehlv de- 

 veloped and less than twiee the hniitli of the mandihle aiul in 

 others still it is represented only h_v a tnhercde. In N. (iin/Jis- 

 siiiKi the male typieally hears a pair of lonu project ini^- horns 

 on the ])osteri(n- niariiin of the second sternile, ahsent however 

 in s(Mno individnals. Pecniiar male secondai-y sexnal rhiw- 

 acters ahonnd in the uvnns and are fi-e<piently al)sent in indi- 

 vidnal males. 



The females of the o-eims have ureat jiowers of stinuinu- 

 and are not at all loath to employ them. The males share with 

 the males of Monohin r/iiarlrldcn.^ of Ts^orth America the nn- 

 nsnal ])ower of inflictinii' a real stint:', the male livnitalia termi- 

 natinii' in shar]) slendei- spines ca])ahle of ])iei-(dn,i:- the Imman 

 skin and ])rodncini;' a distinct ]iainfnl stini>'. 



The nests are nnide of mnd-cells arranecd in a sini^le layer 

 on the undersi(l(> of green leaves oi- in sheltered ])ositions on 

 laro-e stones. One nest was made n]) of five c(dls. The cells 

 are not closed nntil the larva is fnl1 urown and i-ea<ly to i)n]>ate. 

 Since none of the cells examined contained insect renniins the 

 larvae are apy)arently fed hy the mother either on insect jnieos 

 oi- possihly on nectar. 



Proc. Haw. Eiit. Soc. Ill, No. 4, May. 1917. 



