208 e. b. williamson. 



Material Examined. 



1 <? , 1 9 , Rock Island, Illinois ; each labelled "Type ; " % with 

 last 7 abdominal segments gone. U. S. Nat. Mus. 

 1 ^ , 1 9 , Rock Island, Illinois. M. C. Z. 

 1 I , Galina, Illinois; Mr. Bean, collector. M. C. Z. 



1 S , Bethlehem, N. Y.; July 6, 1870 ; Lintner collection. M. C. Z. 

 This species has also been reported from Iowa. 



2. Ooiiipliiis sciidderi Selys. Truis. Add. Syii. Goniph.. p. 24 (or 752), 1873. 

 Ab. -J, 43; 9 42-43. H. w. % 34-35; 9 36-37. 

 Antecub. f. w. 14-15; h. w. 10-11. 

 Postc.ub. f. w. 11-12 ; h. w. 9-11. 



Face olive or yellow ( 9 ) ; labrum clear green or yellow ( 9 ), margined with 

 black, with or without trace of a median spot or longitudinal stripe; anteelypeus 

 brown ; lower half of frons in front, suture between frpns and clypeus, lateral 

 depres.sions and lower lateral edges of post-clypeus, and frons above at base, 

 black. Mesothoracic half-collar interrupted in the middle; mid-dorsal carina 

 black ; doreal stripes isolated ; antehumeral pale stripe widely interrupted above, 

 reduced to a short line below and a spot above; humeral and lateral sutures each 

 with a complete stripe; the humeral and first lateral stripe enclose a parallel- 

 sided pale area about as wide as the humeial stripe; pale area between the two 

 lateral stripes reduced, interrupted above. Legs black ; first femora, and to a 

 lesser extent the second, paler beneath ; third femora black or yellow basally. 

 Abdomen with 3-7 basally annulate with yellow. 



%. — Accessory genitalia of 2 blackish; second hamule similar to that of G. 

 amnicola ; 8 and 9 each with a small dorsal basal spot and a larger irregular lat- 

 eral basal one ; 10 and appendages black. 



9 • — Spines on vesicle of frons placed more closely to the lateral ocelli than in 

 G. spinicep.i ; lateral spines short, conical. Abdominal segments 2-9 laterally con- 

 spicuously marked with yellow; 7-9 very slightly dilated; vulvar lamina in 

 length about one-sixth the length of the sternum of 9. The vulvar lamina of 

 the female of this species loaned me by Dr. Calvert differs from the specimen 

 figured by the two thickened areas being more contiguous and with a thiner 

 membranous area basally on either side, as well as between them; the outline 

 of the lamina is the same in both cases. 



Material Examined. 



2 S , Russell Stream, Northeast Carry, Maine ; August 29, 1899 ; 

 F. L. Harvey, collector. E. B. AVilliamson. 



1 9 , Northeast Carry, Maine; August 29, 1899 ; F. L. Harvey, 

 collector. Ohio State University. 



1 9, Russell Stream, September 27, 1899; F. L. Harvey, col- 

 lector. Dr. P. P. Calvert. 



Selys' type of this species may possibly have been taken in Mas- 

 sachusetts or New Hampshire. 



