R e v i s t a d a S o c i e d a d e B r a s i l e i r a d e M e d i c i n a T r o p i c a l 2 7 ( 3 ) : 1 7 7 , j u l - s e t , 1 9 9 4 .
COMUNICAÇÃO
HATCHING OF EGGS OF
D 1P E T A L O G A S T E R M A X IM U SKEPT UNDER
DIFFERENT CLIMATIC CONDITIONS
M . T . García-Zapata, M . Vidal and P. D . M arsden
T he u se o f D i p e t a l o g a s t e r m a x i m u s in xenodiagnosis has been reviewed2. W e continue to investigate relevant biological aspects ofthis species. W e report here the results o f exposing newly laid eggs to more controlled temperature (mean 28 °C, range 27-30°C ) and humidity (50% mean, range 47-50) and to Brasilia enviromental conditions (temperature 22°C , range 10-34; humidity 40%, range 10-90). Experiences were duplicated using
40 eggs in each batch.
The results shown in the Figure 1 confirm previous observations1. Egg lots maintained in ambient conditions hatched in a mean o f 36 days (range 21-47). Those in the more controlled conditions o f our insect colony hatcher earlier (mean 23 days, range 12-27). The results confirm the value o f keeping the colony under controlled ambiental conditions.
1. B arreto A C , P ra ta A R , M a rsd e n P D , C uba C C , T rig u eiro C P. A spectos biológicos e criação em m a ssa d e D ip e ta lo g a s te r m a x im u s (U lher, 1894) (T riatom inae). R evista do Instituto d e M edicina
T ro p ical de São P aulo 2 3 :1 8 -2 7 , 1981.
2. M arsden PD . D ip e ta lo g a s te r m a x im a o r m a x im u s
as a xenodiagnostic agent. R ev ista d a S o ciedade B rasileira d e M edicina T ro p ica l 1 9 :2 0 5 -2 0 7 ,1 9 8 6 .
U N D P /W o rld B an k /F N S /M S & N ú cleò d e M edicina T ro p ical e N u trição , U n iv ersid ad e d e B rasília, B rasília, D F .
R eceb id o p a ra p u b licação em 0 4 /0 5 /9 4 .
