428 



On uecoinit of its small size and close relationship to Ooencyr- 

 1 11^ it may ])rove to be an eg'g-parasite. 



Plagiomerus hospes n. sp. Figs. 20, 21. 



Female : Head considerably wider than long, the face abruptly 

 intlcxed from the horizontal frons, moderately thick .-'.bove but becom- 

 ing much thinner toward the mouth ; occiput but slightly concave, the 

 margin above rather acute; dorsal surface of head strongly convex; 

 eyes mostly dorsal l)ut the anterior margin refiexed on to the plane of 

 the face rather more widely than in Plagiomerus diaspidis Craw^ford*, 

 also larger than in t'lat species, and in the form of a nearly equilateral 

 triangle with the inner margins straighter and parallel; frontovertex 

 comparatively narrow, apparently somewhat over twice as long as wide, 

 the ocelli in a right-angled triangle with the posterior pair practically 

 touching the eye-margins and rather remote from the occipital margin ; 

 cheeks about equal to the length of the eyes and arcuately converging 

 towards the mouth ; face broad, the scrobes in tlie form of a triangular, 

 rather deep depression, reaching upward between the eyes to the anterior 

 margin of the frons. separated on either side from the eye-margins by 

 a convex rather wide space and divided on the lower three-fourths of 

 its length by a rounded, triangularly shaped ridge broadest between 



Figs. 20 and _'i. Plagioiiirnis liospcs. female antenna and mandible. 



and S(3mewhat Iiclow the antennal sockets. .Antennae inserted slightly 

 less than half way from the oral margin to a line connecting the lower 

 corners of the eyes, the sockets widely separated by the facial ridge, their 

 distance apart a little less than the distance from either to the nearest 

 point of the corresponding eye ; scape rather long and reaching slightly 

 bej'ond the plane of the frons, compressed but linear, the lower margin 

 somewhat convex ; pedicel a little wider at apex than the following 



'■'The head in all available specimens is much shrunken so that this 

 difference may be illusorj-. 



