xv, 2 Crawford: Jumping Plant Lice 155 



and stout. Abdomen large, the broadest part of body broadly 

 rounded caudad. 



Four adult specimens and three nymphs of this' large and 

 striking psyllid are before me, collected in Pollibetta, Coorg, 

 India, on May 27, 1914, from galls on leaves of an unidentified 

 tree. 



CARSIDARIN^: 



This subfamily has much larger representation in tropical 

 countries, only a few species being found as far north as the 

 southern United States. Previous to 1911 so few representa- 

 tives of this subfamily had been discovered and examined that 

 those few were assigned positions in genera variously related 

 to the other Psyllidae ; but when an increasingly large number of 

 forms from many tropical localities began to come to hand, it 

 became apparent that a comparatively large tropical fauna of 

 this type existed. 



As our knowledge of this group advances we shall no doubt 

 have to recast our taxonomic conceptions. One of the most 

 striking peculiarities of the representatives first examined was 

 the deeply cleft head, with the thickened antennae enhancing 

 the cleft appearance, and the absence of genal cones. Exam- 

 ination of more species of this subfamily, however, ,has shown 

 that these characteristics are not to be found throughout the 

 subfamily, though the genal cones usually are absent. The body 

 always has a characteristic elongate form, and the wings have 

 a peculiar venation; though this latter peculiarity is one not 

 easily explained nor easily appreciated by one unfamiliar with 

 the group. 



As the tropical countries of the world are more carefully 

 explored for their insect life, it is probable that many new and 

 perhaps quite different types of this subfamily will be brought 

 to light, necessitating changes in our taxonomic disposition of 

 these very interesting little creatures. 



The following subfamily description is intended to supersede 

 the previous definitions of this group : 



Body typically elongate, often slender. Head usually cleft in 

 front, vertex more or less concave on front margin and genre 

 swollen out forward beyond vertex at each antennal base, and 

 the latter often swollen and increasing the birostrate appearance 

 of the head, but in at least two genera, Nesiope and Tenapha- 

 lara, head riot birostrate. Genal cones usually wanting or very 

 small and inconspicuous. Beak very long. Eyes hemispherical, 

 usually not at all recessive. Antennas usually long, often thick- 



