123 



The caterpillars were all in a living condition and moved 

 slightly at their extremities when distnrbed, bnt were incapable 

 of locomotion. 



The e^g was fomid at abont two o'clock Jnne 15, 1918, and 

 hatched Jnne 18, bnt the larva died withont feeding. 



11. Odyxerus PSErDOCHROMUS Perkins. 



The nests of this species are made in the pith cavities of 

 dead twigs and branches, the cells being separated by weak 

 nmd ])a]'titions. I'snally from one to three cells are to be 

 fonnd in a place. One nest fonnd on ^It. Lanihnli was stored 

 with the larvae of the Ohia Tortrieid {Eccopfocera foefoivor- 

 ans Bntler). There were abont a dozen of the larvae in one 

 cell. The egg was near the bottom of the mass of larvae and 

 was attached by a thread shorter than the egg. 



TRYPOXYLONIDAE. 



12. Pisox IX THE Hawaiiax Islaxds. 



The following table will serve to distingiiish the tliree s])e- 

 cies of Pison which are now known to be established in tlu' 

 Hawaiian Islands: 



1. First and second recnrrent nervnres interstitial wirli 



the 1st and 2nd transverse cnbital nervnres... 



iridipcnnis Smith 



Second recnrrent received by the second cnbital cell 2 



2. First recnrrent interstitial with 1st transverse cnbitns 



calcaria of hind tibiae pale argenidtuni Smith 



First recnrrent received by the. first cnbital cell. Cal- 

 caria of hind tibiae dark ..liospcs Perkins 



HYLAEIDAE. 



13. So:me SE<;Ki-:(iATEs from IIylaeus. 



The ])rocesses of type-fixation now nnder way involve a 

 nnndier of changes in nomenclatnre which are not greatly wel- 

 comed by many of ns whose tendencies are conservative and 

 in many cases tyjie fixation resnlts in obvions violation of the 



