430 PRiOCEE.D'mGS OF THE NATIONAL MUSEUM vol. 94 



PAKARHAGADOCHIR BIRABENI (Navas), new combination 



FiGUKE 38-41 



Enihia iiralteni Navas, 1918, p. 105, fig. 5. — DA\as, 1940b, p. 352 (Embolynthaf). 



This species has been unrecognizable because of the inadequate 

 original description and figures. Dr. Biraben has kindly sent the 

 writer the holotype and a topotype male of this species, and thus it 

 is now possible to reveal its characters in detail. The following re- 

 description and accompanying figures are based upon the holotype 

 of hirabeni: 



Male (holotype, on slide). — Rather uniform chocolate brown 

 throughout (including prothorax) ; abdomen slightly paler. Length 

 9.5 mm. ; forewing length 4.7 mm., breadth 1.2 mm. 



Head (fig. 38) moderate sized, elongate-oval; eyes rather small, 

 only slightly inflated, facets small, interspace equal to three eye 

 widths ; sides behind eyes gradually, convergently curved, increasingly 

 so caudally to form a narrowly rounded caudal margin; mandibles as 

 throughout the genus, but with slightly broader, shorter teeth, uniform 

 light brown ; submentum dark reddish brown, as long as broad, sides 

 slightly arcuate, anterior margin shallowly emarginated. 



Wings rather short and narrow with venation as throughout the 

 genus ; cross veins between Ei and R2+3 obsolete ; only one broad, white 

 cross vein between R2+3 and R.4. 



Hind basitarsi rather short and stout; with two sole-bladders, the 

 second small and situated at apical third. 



Terminalia (figs. 39-41) : Left tergal process (10 LP) (fig. 41) two- 

 thirds as long as width of 10 L, inner margin continuous with the 

 straight inner margin of 10 L, outer margin straight, parallel to 

 central body axis; apex bifid, inner portion sclerotic, talonlike, ab- 

 ruptly curved outward nearly at a right angle, outer portion irregular, 

 fleshy, membranous. Major right tergal process (10 RPi) with apex 

 produced as an abruptly downwardly curved sclerotic spine, without 

 a ventral membranous appendix. Ninth sternite (H) much broader 

 than long, caudal angles rounded; process (HP) twice as long as 

 broad, membranous at apex, not wrinkled. Composite right cercus- 

 basipodite and right paraproct (RCB + RPPT) a broad, darkly pig- 

 mented, ventral crescent; broadly fused along basal margin with 

 side of HP. Composite LCB and LPPT very large, not definitely 

 fused at base and inner side to H and HP ; dilated terminally, with a 

 ventral, subechinulated nodule at inner apical angle. Cerci with form 

 as illustrated; inner nodule of LCi large, truncate. 



Female (on slide). — Uniform chocolate brown throughout except 

 head; head yellowish brown, especially ventrally. Length 12 mm. 

 Head circular, with antennae 21-segmented (apparently complete). 

 Hind basitarsi short, stout; with two large, nearly contiguous sole- 



