MORGAN HEBARD 363 



concave at base of cerci, thence moderately convergent and very weakly 

 convex, rounding into the broad transverse distal portion which is roundly 

 angulato-emarginate mesad, thus the mesal produced portion of the plate is 

 weakly bilobate and is over twice as broad as long. Subgenital plate convex, 

 distad on both sides more flattened and sloping upward to free margin; free 

 margin dextrad nearly straight produced, weakly convex to mesal point, 

 einistrad similar but slightly more convex; at mesal point the plate just within 

 the margin is produced in a very small scute cur\ang outward with apex 

 acute and directed sinistrad, at the sinistral base of this projection is situated 

 a chitinous spine which extends as far as the apex of the projection. Limbs 

 and armament of same as given in generic description.''* 



Characters oj 9 • — (Cabanas, Havana, Cuba.) Similar to male in ambisexual 

 characters, differing in the following features. Form normally decidedly 

 broader. Interocular width appreciably greater than (normal), to slightly 

 less than (rare), that between the less distinct ocelli. Dorsal surface of abdo- 

 men not specialized. Supra-anal plate about twice as broad as long, trian- 

 gularly produced with immediate apex angulate emarginate, free margin lat- 

 erad weakly concave to nearly straight. Subgenital plate convex, brief, with 

 free margin much as in S. jamaicana but less sinuous, the mesal point being 

 often merely broadly and shallowly concave. 



Measurements {in millimeters) 



•5^ 5fl ^a 5S .aS 



«l0 t*g i^O tjjMJ *e«> 



^ a.Q Oq. rSo. aS 35 



" a ^ ^ a "^ 



Cabanas, Pinar del Rio, Cuba. . 12.5 3.6 4.8 15.2 4.7 



Havana, Cuba 10.2 2.9 3.9 11.2 3.6 



Havana, Cuba 12 3.6 4.8 13.4 4.2 



Isle of Pines 12.3 3.7 4.7 14.4 4.4 



9 



Cabanas, Pinar del Rio, Cuba. . 13.2 3.9 4.9 12.9 4.3 



Cabanas, Pinar del Rio, Cuba.. 14.8 4.1 4.9 14.2 4.7 



Cayamas, Cuba 11.2 3.4 4.4 7.9 3.3 



Cayamas, Cuba 12.7 3.8 4.7 10.5 4 



Havana, Cuba 10.2 3 3.8 9.7 3.1 



Havana, Cuba 13.5 3.9 5.2 12.1 4.3 



. ■** Though the concealed male genitalia may afford additional specific 

 characters, we have not sufficient material to examine these in the different 

 species. In capitata they are as follows: from within two elongate processes 

 project, just dextrad of the production on the subgenital plate; a stout, straight, 

 chitinous process with surface shagreenous and with apex blunt, above which 

 projects to an equal distance a slender, straight, chitinous process with apex 

 aciculate. Within at base of dextral ccrcus is a chitinous j)rocess shaped like 

 a pair of tarsal claws and directed mesad, the dorsal claw longer than the ven- 

 tral. At base of sinstral cercus is a chitinous plate produced in a stout, chiti- 

 nous, curved finger directed mesad. 



TRANS. AM. ENT. SOC, XLII. 



