PHILIP P. CALVERT 335 



Epigomphus quadracies 



Epigomphus quadracies Calvert, Ent. News, xiv, pp. 188, 189, 190, 191- 

 1903. Biol. Cent.-Amer., Neur., pp. 170, 171, 172, tab. vii, fig. 36 (occiput 

 9), tab. viii, figs. 4,5 (apps. d'). 1905. Ris, Arcbiv. f. Xaturgesch., 82 

 Jahrg., Abteil A, 9 Heft, p. 150. 1918. 



The following notes are based on the material listed antea, page 325: 

 Pale color on the dorsal surface of the frons separated into two spots, right 

 and left, in all except the male of August 4. No dark band on or near the 

 ventral margin of the metepimeron. 



Abdominal segment two vdth a mid-dorsal, longitucUnal, yellow stripe 

 which reaches the hind end and is bordered on each side by blackish brown 

 id'), more indistinct and bordered by brown or ochraceous in the 9 ; three 

 to six blackish brown with a mid-dorsal yellow or ochraceous line, or this 

 hne on three and four only, five and six with a small, mid-dorsal, basal 

 yellow spot (Panama cf); three with a longitudinal, lateral, yellow stripe 

 on its anterior five-sixths, four to six with a basal, lateral, yellow spot; seven 

 with anterior half to three-fifths (cf) or third (9) ochraceous, pale green 

 or yellow, remainder blackish brown or brown; eight to ten blackish brown, 

 the males with a variable extent of yellowish inferiorly on the sides. 



9 . Vulvar lamina .63-.7 mm. long, reacliing to .4-.5 of the lateral margin 



of segment 9, bilobed in its chstal .4-.5, interval between the lobes triangular. 



Abdomen, cf , 35 (.\lajuela), 39 to 39.5 (Rio Chirripo); 9 , 40 to 42 (both 



localities); hind wing, d, 30 (Alajuela), 32 (Rio Chirripo); 9, 34.5 to 35 



mm. (both localities). 



Epigomphus tumefactus 



EpigoDtphus tuincfaclus Calvert, Ent. News, xiv, pp. 188, 190, 191, ])1. viii, 

 fig. 4 (entire d). 1903. Biol. Cent.-Amer., Nem-., pp. 171, 172, tab. viii, 

 figs. 6, 7 (apps. d). 1905. Ris, Archiv f. Naturgesch., 82 Jahrg., Abteil A, 

 9. Heft., pp. 146, 147, 149, figs. 94, 95 (apps. d). 1918. 



The following notes are based on the material hsted anlea, page 325 : 

 Pale color on the dorsal surface of the frons narrowiy (d) or widely ( 9) 

 separated into two spots, right and left. 



Metepimeron with a brown band on or near its ventral margin in the males 

 from Peralta and Guapiles, faint in the Estrella d and Guacimo 9 , absent 

 in the other three females. 



Abdominal segment two with a yellowish, longitudinal, mid-dorsal stripe 

 bordered on each side by browai; three to six blackish, three (or three and 

 four, 9 ) with a mid-dorsal, longitudinal, yellow line, four to six with a mid- 

 dorsal, basal, yellow spot; three with yellow on the sides for the anterior 

 three-fourths, not confluent with the dorsal yellow- four with yellow on the 

 sides for the basal tliird to almost the entire length, usually not confluent 

 with the dorsal yellow; five to six yellow on the sides for the basal sixth to 

 two-thirds, usually not confluent with the dorsal yellow; seven with the basal 

 foiu--to five-sevenths (d), two- to three-sevenths (9) yellow, except for a 

 transverse brown hne each side at two-sevenths of the segment's length, 



TRANS. AM. ENT. SOC, XLVI. 



