402 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



Fig. 12 A— 



Neoconoceph- 

 alus reiusus 

 (S c u d d e r) . 

 Chestnut Hill, 

 Pennsylvania. 

 Stridulating 

 field of male 

 tegmen. (3 5.) 



This species and N. triops are distinctive in the 

 form of the vertex when compared with other North 

 American species. From that insect, reiusus is easily 

 distinguished by the much smaller size, more at- 

 tenuate form and proportionately very much longer 

 ovipositor. 



The stridulating field of the male tegmen is small 

 and rather broad; the stridulating vein is of moderate 

 length and rather weakly swollen, with accompanying 

 veins not decided but well defined throughout their 

 length; the veinlets of this area are weakly defined. 



A minor difi'erence i§ apparent in the male cercus 

 of the present species, the longer (ventral) of the 

 distal arms being distinctly compressed dorsad along 

 the caudal margin. 



Measurements {in millimeters) 



Num- 

 ber of 

 speci- 

 mens 



Philadelphia Neck, Pennsyl- 

 vania 



Tinicum Island, Pennsyl- 

 vania 



Plummer's Island, Maryland, 



Washington, District of Co- 

 lumbia 



Falls Church, Virginia 



Asheville, North Carolina . . 



Fayetteville, North Carolina 



Florence, South Carolina. . . . 



Georgia. Type 



Albany, Georgia 



Thomasville, Georgia 



Bainbridge, Georgia 



St. Augustine, Florida 



St. Louis, Missouri 



(6) 



(19) 

 (1) 



(4) 

 (3) 

 (1) 

 (4) 

 (2) 

 (1) 

 (1) 

 (1) 

 (2) 

 (2) 

 (1) 



Length of 

 pronotum 



6.5-7.3 



5.3-7.1 

 5.3 



6.9-7.1 

 6.4-6.6 



6.8 

 6-6.7 

 6.9-7 



6.9 



7.7 



7.8 

 7.1-7.8 

 7.3-8 

 7 



Length of 

 tegmen 



29.8-40.7 



23.5-32 

 25.9 



.32-36.4 

 30.6-36.8 

 33.5 

 .5-30.7 

 .7-37.4 

 37.7 

 40.6 

 42.7 

 36-41.1 

 35.1-37.9 

 1 35.8 



Length ; Length 

 of caudal I of oviposi- 

 femur [ tor 



20.8-23.7 31.4-37 



16.9-23 27.7-34.3 

 17.8 ; 23.9 



22.8-24.4 33.3-36 

 22-22.7 31.9-33.2 



27.7-29.1 35-36.7 

 22.7 I 33.9 



The tj^je measures in length of vertex, lateral 2.1, ventral 1.2; 

 the males before us give the following extremes of these dimen- 

 sions, lateral 1.8-2.2, ventral, 1.-1.4 mm. We have not given a 

 table of measurements for the male sex, for, though averaging 



