MORGAN HEBARD 25 I 



number of weak, transverse veinlets run from the discoidal to the 

 weak median vein; ulnar vein as heavy as discoidal vein, undivided 

 almost to base of appendicular field, there connecting along that 

 margin with the discoidal and anal veins; axillary vein similarly 

 connected distad with the anal vein and reaching in the opposite 

 direction nearly to the posterior angle of the appendicular field, 

 axillary vein with two branches, one reaching the posterior angle 

 of the appendicular field, the other reaching the free margin of the 

 posterior field; appendicular field very large and elongate, length 

 slightly less than length of proximal portion of wing, surface 

 coriaceous, basal margin almost straight, lateral margins convex 

 and convergent to the broadly rounded apex. Dorsal surface of 

 male abdomen with sixth segment specialized mesad. Subgenital 

 plate of male with styles situated mesad. Subgenital plate of 

 female truncate distad, without median cleft, but sometimes with 

 a small meso-distal emargination. Armament of limbs, character 

 of tarsi, pulvilli and arolia as in Chorisoneura. Tarsal claws very 

 distinctive from the known genera of the Blattidae; each claw 

 very delicate, armed with two microscopic teeth mesad on its 

 internal margin. 



Plectoptera floridana new species (Plate X, figures 9 to 12.) 



All of the material here considered, with the exception of the 



first specimen listed, has been recorded by Rehn and Hebard as 



Plectoptera poeyi (Saussure), a distinct but related Cuban species.*" 

 The present insect is distinct from the other forms of the genus 



in the combination of size, head marking, general coloration and 



character of male subgenital plate. 



Type. — cf ; Key West, F'lorida. January 19, 1904. (M. Hebard.) 



[Hebard Collection Type no. 434.] 



Description of Typc.^'^^ — Size \ery small, medium for the genus. Head with 

 width about equal to length: interocular space broad, but distincth" less than the 

 very broad space between the antennal sockets, interocular si)ace with a narrow, 

 distinct, dark, transverse band. Pronotum and tcgmina immaculate. Wings 

 very delicate, broader than in P. porccllaua,'^^'-' with \eins not consi)icuously dark- 



^^^ A series of fifty-nine West Indian specimens of the genus, representing numerous 

 species, is now before us and enables us to determine these facts. 



'5* Many characters are given in the generic description which do not show even slight 

 differences in the species of the present genus. 



^*' Of which species, a series of Cuban specimens is before us. 



MEM. AM. ENT. SOC, 2. 



