Vol. xxv] ENTOMOLOGICAL NEWS. 279 
emended form Trypanea, which I do not think necessary. This 
name unfortunately must take the place of Urellia Desv. (1830). 
This being the oldest genus in the family has influenced Prof. 
Bezzi to change the family name to agree. Of course he 
recognizes Meigen’s 1800 genera in which case he is within 
his rights. I do not recognize the 1800 names and so prefer to 
retain Trypeta Meig. instead of Euribia Meig. The name of 
a family is the one first applied to it provided the genus from 
which it is named is included. The retention of Trypeta will 
necessitate the changing of Bezzi’s tribe Ceratitininae to Trype- 
tininae while his subfamily will be Trupaneinae with Tru- 
paneininae as its typical tribe. 
Some Facts About the Egg Nest of Paratenodera 
sinensis (Orth.). 
By Harry B. Wetss, New Brunswick, New Jersey. 
The egg nest of this striking and beneficial insect is peculiar 
in that it consists of a central, somewhat horny, core, contain- 
ing the eggs, surrounded by a porous rind, which undoubtedly 
serves to protect the eggs from moisture and sudden changes 
in temperature. 
Thermometric tests of the conductivity of this rind were 
made with quite a few nests, and the following tables, show- 
ing the temperature changes of three nests, indicate what hap- 
pened generally. In each case a hole was drilled in the nest 
and the bulb of a thermometer inserted so that it occupied 
the same position as the core. The nests were then placed in 
an oven, the temperature of which was 160 deg. F. The nest 
temperature at the start was 64 deg. F., and a thermometer 
having no nest attached and reading 64 deg. F. at the start 
registered the oven temperature 160 deg. F. in two minutes. 
Ecc NEst A. 
MRRPRAMSLE AE SEATEOC 2 OS, oan haan cde ead sac aM RE os 64 deg. F. 
enmneratire at, end Of 5, minutes’... siya «> -aieie ssle 102 deg. F. 
empetatare at end of 10. Minutes Wiis sjsu os sve te ae tae 148 deg. F. 
memeetaimee at end. OF, 12; MNGIES 4... 52034 - ty Benne 160 deg. F. 
Rise in 12 min., 96 deg. F. 
