SCENOPINIDAE OF THE WORLD 



aed. 



9th cisp. 

 lOth.St. 



bursa 



9th. St 



ej. syr 



Figure 1. — Genitalia structures used in identification: aed., aedeagus; aed. pmr., aedeagal 

 paramere; ace. gl., accessory gland; ap., apodeme; bursa, bursal cavity of female; ej. 

 syr., ejaculatory syringe; 9th clsp., 9th segment clasper; 9th st., 9th sternum; 10th st., 

 10th sternum; 9th t., 9th tergum; 10th t., 10th tergum. 



Lateral and frontal aspects of the head and an enlarged view of 

 the antenna were drawn for each sex, and a typical wing figure was 

 made wherever possible. 



Biological Notes 



Very little is known of the biology of this interesting family. A few 

 of the well known, widely distributed species, such as Scenopinus 

 fenestralis and S. glabrifrons, have well documented life histories and 

 have been associated with their hosts. From the meager records that 

 are available, it is clear that the larvae of the Scenopinidae are all 

 l)redacious on other insects. A luimber of species are predacious on 

 the larvae of dermestids and have been commonly collected at the 

 windows of storehouses, feed mills, and museums. Members of the 

 genus Pseudatrichia have been reared from the nests of wood rats, 

 where they were feeding on the larvae of fleas and hce. Several species 

 have been taken as larvae or pupae from the nests of birds and reared 

 out. Members of the genus Belosta from the western United States 

 have been associated with bark-infesting beetles attacking i)ines and 

 hardwood, and one species has been taken from a termite nest. The 



