196 ENTOMOLOGICAL SOCIETY 



Dr. Aleman's account and descriptions extend over several 

 pages in La Naturaleza, but are far from being satisfactory. 

 In his descriptions he gives only characters common to all 

 Psyllids, but the genus is recognizable from the rough figures. 



I give herewith a more detailed description of this remarkable 

 genus, for which the name proposed by Aleman has to be re 

 tained with a slight change. 



GENUS FREYSUILA ALEMAN. 

 Frey-Suila Aleman, La Naturaleza (2) i, No. i, 1887, pp. 21-26, tab. III. 



Body robust. Vertex transverse, broadly excavated longitudinally along 

 the median line, its front margin triangularly notched at middle, greatly 

 elevated and obliquely truncate on each side of the excision ; eyes large, 

 prominent, the tempora well developed behind them; anterior ocellus not 

 visible from above ; frontal processes absent and represented on the under 

 side of the head by a protuberance on each side beneath the antennal base 

 and in front of the large knob-shaped clypeus. Antennae unusuallj' long; 

 first two joints short and thick as usual, third joint extremely long, much 

 wider than the following joints, densely asperate and densely pubescent, 

 slightly tapering at apical portion, joints 4 and the following very thin and 

 slender. 



Pronotum and dorsulum greatly ascending posteriorly, the former 

 slightly emarginate behind, lateral impressions shallow and confluent ; 

 dorsulum transverse, anterior margin hardly less convex than the posterior 

 margin. 



Elytra hyaline, membranaceous, elongate-oval, gently widening from 

 base to apical third, apex broadly and regularly rounded: cubitus as long 

 as, or slightly shorter than, discoidal part of subcosta ; a distinct ptero- 

 stigma, stem of second fork not parallel with radius; tip of wing at the 

 termination of the 4th furcal or close to it within the second marginal cell ; 

 legs extremely long and slender, tibiae not dentate at base, tarsi normal ; 

 genital plate of male without lateral appendage, genital segment of female 

 short. 



The genus is readily known by the form of the antennae and 

 the very long legs. The front margin of the head recalls that of 

 Homotoma (Psyllinae) and Rhinopsylla (Triozinas), but in both 

 of these genera the vertex is more or less flattened. Freysuila is 

 difficult to place in Dr. Fr. Loew's arrangement of the subfamilies 

 of Psyllidae, but if we adopt his system the genus can only be 

 placed among the Aphalarinae. However, this subfamily is very 

 badly defined, and is either not separable from the Psyllinae, or an 

 entirely new arrangement of the genera has to take place. At 

 any rate the genus differs from all genera placed among the Apha 

 larinae by the great length and slenderness of the antennae and 

 the remarkable development of the third antennal joint. 



