MORGAN HEBARD 39 



Superficially the resemblance of this species to X detersa'"'^ is 

 remarkable; in the present insect the tegmina are, however, not 

 as long in the female as in the male, while the two species are widely 

 separated by a number of structural characters of the greatest 

 importance. 



This species appears to stand first in the genus; the arrangement 

 of the recognized species which should be placed here, is given in 

 footnote 44. 



Type. — cf ; Miami, Dade County, Florida. February 7, 1904. 

 (M. Hebard; edge of town under sign on pine, Piniis caribaea.) 

 [Hebard Collection, Type no. 406.] 



Description of Type. — Size medium, form moderately broad. Head with inter- 

 ocular space equalling half that between antennal sockets; ocelli distinct; inter- 

 ocular-ocellar area distinctly flattened; very small circular areas, with surfaces 

 feebly convex, occur meso-ventrad and adjacent to the antennal sockets. Max- 

 illary palpi with distal joint large, very slightly longer than penultimate joint and 

 nearly as long as third joint. Pronotum but little convex; greatest width meso- 

 caudad; transparent lateral areas but weakly declivent; cephalic margin of pro- 

 notum broadly convex, rounding broadly into transverse caudal margin. Tegmina 

 elongate, moderately broad; very delicate in structure; veins very numerous but 

 weakly defined, numerous discoidal sectors (8 often) weakly oblique to sutural 

 margin. Wings very delicate, with veins and some cross-veinlets weakly darkened ; 

 costal veins very feebly clavate distad. Abdomen with proximal dorsal segments 

 unspecialized ; sixth with a sudden, deep, semicircular depression mesad which 

 touches the cephalic margin, face of depression there supplied with a scant fringe of 

 hairs, immediately caudad of this point the segment is raised in a large blunt knob, 

 with surface covered cephalo-dorsad with a heavy tuft of somewhat agglutinated 

 hairs of equal length, caudad of this knob the segment is subchitinous in texture 

 and shows a weak emargination of the caudal margin, latero-caudal angles of this 

 segment moderately acute-angulate produced with apex bluntly rounded; seventh 

 segment almost hidden; eighth segment no broader and less chitinous in exposed 

 portion, so that the supra-anal plate is clearly visible beneath. Supra-anal plate 

 transverse, triangularly weakly produced with apex rather broad and blunt. \ en- 

 tro-mesad, within the anal chamber, a soft integument projects from base of sub- 

 genital plate, with filaments converging distad and at its apex, just within the 

 median specialization of the subgenital plate, bearing a minute chitinous thorn on the 

 dorsal surfacedirected caudad and curving ventrad. " Dextrad, within the anal cham- 

 ber, from a moderately elongate, subchitinous integument, projects a slender genital 



^•^ Topotypic Jamaican series of this distinctive West Indian species, now before us, 

 make it possible for us to give its proper generic position and compare it with the present 

 insect. 



MEM. .\>r. EXT. SOC, 2. 



