Insecutor Inscitiae Menstruus 



Vol. II APRIL. 1914 No. 4 



TWO NEW THYSANOPTERA FROM PANAMA 



By J. DOUGLAS HOOD 



The two species described below were collected by Mr. James Zelek, 

 of the Isthmian Canal Commission, from a single plant of Hura crepitans 

 L., on Taboga Island, in the Bay of Panama. The leaves of this plant 

 bore numerous galls, about which the thrips were especially abundant 

 and active. Whether they are actually responsible for these galls, or only 

 visitors which find better food or protection in their vicinity, can not at 

 present be answered, though it is interesting in this cormection to note 

 that their closest relatives are the Javanese leaf-folding species of the 

 genus Gynail^othrips. 



Holopothrips, new genus. 



(Skoc, entire; w^, eye; Oplip, a wood worm) 



Head longer than broad and longer than prothorax ; cheeks smooth. 

 Eyes large, protruding, renlform in dorsal aspect, nearly contiguous below 

 anterior ocellus and behind posterior ocelli. Ocelli closely approximate 

 and anterior in position, the anterior ocellus directed upward and forward. 

 Antermae 8-segmented, slender, much longer than the head ; fifth anten- 

 nal segment as long as or slightly shorter than the fourth, and longer than 

 the sixth. Mouth cone rounded at apex, labrum sharply pointed and 

 slightly produced beyond labium. Prothorax half as long as head ; chiti- 

 nous plate at posterior angles fused with notum. Fore tarsi unarmed. 

 Wings not narrowed at middle. Tube much shorter than head. 



Type : Holopothrips signatus Hood. 



The holoptic eyes, short tube, and the fusion with the notum of the 

 chitinous plate at the posterior angles of the prothorax, appeau: to be char- 

 acters of generic importance, which should serve to distinguish the two 

 new species described below from the genus Gynaikothrifjs Zimmermann. 



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