TkIACANTIIAGYNA and (iYNACANTHA 33 



reddisli brown or dull orange with only a trace of the nie(Han green 

 spots and the apical spots wanting; sides of 3-8 light golden brown, 

 shaded with darker and with green ; base of 3 blue ; a distinct green spot 

 below, posterior to the transverse carina on 3-9, faintest on 9. 



Material examined: Mexico, Colima (Rolle, 1913, i male, Ris). Cordoba 

 (F. Knab. December 24, kjoj, i female. U. S. N. M.) ; Costa Rico. Cimarones 

 (C. H. Lankester, April 8. i male. A. X. vS.), Ontario Farm ( C. H. Lanke- 

 ster. September 16 and 17. 2 males. A. N. S. ) ; I 'ciicziicla, La Fria. Dept. 

 Tachira (April 13, 1920, i male, E. B. W.). 



Gynacantha jessei, new species 



Abdomen male 47; hind wing male 43; superior ap])endage male 5.4; 

 stigma front wing male 3.6. 



Male. — The following description is based on the single knowm speci- 

 men. Notes on living colors were made at the time of capture and these 

 notes form the basis of the description, other notes based on the well pre- 

 served specimen being included in parentheses. Eyes above very dark blue, 

 shading into paler dull blue at midheight, the lower third gray. Frons above 

 light yellowish brown, T-spot large, face light greenish brown, labrum blue 

 (labium dingy greeiu'sh yellow; labrum dingy blue at base shading out to 

 dingy orange at the margins ; anteclypeus dingy greenish yellow ; face green 

 in front, bluish on either side next the eyes ; frons above and frontal vesicle 

 black, the frons on either side with a narrow transverse blue bar, which is 

 a dorsal continuation of the lateral blue of the face, thus forming a T-spot, 

 with the cross-bar in the midline almost as wide as long, and a stem as wide 

 us long; occiput small, greenish, darker in front, paler and clearer behind; 

 rear of head pale yellowish, narrowly shining black above, and a broad band 

 from this to the foramen). 



(Front lobe of prothorax pale, middle lobe brownish, hind lobe brownish, 

 pale margined behind. ) 



Thorax bright green with the following narrowly lined brown : middorsal 

 carina, humeral and first and second lateral sutures ; the lower end of the 

 middorsal brown stripe has two cross bars of the same color, the inferior 

 one of these is the longer and has the ends turned upward ; metepimeron 

 with the upper third blue, shading below into green ; interalar spots between 

 the front wings green, between the hind wings blue; (in the dried specimen 

 the green and blue are fairly well preserved but the brown sutural stripes 

 are no longer evident). 



Abdominal segment 1 rich brown, apex black, on either side a subapical 

 transverse broad green bar which ends dorsally at the point which marks 

 the inferior termination of the posterior carina; below, the bar curves 

 forward along the ventral margin of the segment and almost reaches the 

 base of the segment ; 2 black marked with bright blue as follows : a trans- 

 verse basal ring, narrow in the middorsal line but widening rapidly on the 

 sides and continuing with the blue on the auricles which are broadly edged 

 with black, a median longitudinal bar, arising in the basal ring and ending 

 posteriorly at the level of the posterior carina, a triangular spot on each 



