ART. 20. TCHT>rEUMON-FLIES OF TRIBE PANISCINI CUSHMAIST. 37 



Temples very narrow but rather strongly convex; ocelli very large, 

 touching the eyes; face nearly a half wider than frons, about as long 

 as wide, subopaquely shagreened and sparsely punctate; clypeus 

 weakly convex about half as long as wide, weakly arcuate at apex; 

 antennae very slender, attenuate toward apex, middle flagellar joint 

 distinctly more than twice, those near apex nearly three times as 

 long as thick. Thorax subopaque; mesoscutum shining, minutely 

 coriaceous, notauli long; scutellum margined to apex, space between 

 carinae long, about twice as wide at base as at apex; pro no turn 

 obliquely striate, mesopleurum closely minutely punctate; meta- 

 pleurum obliquely striate; propodeum finely transversely striate, 

 apophyses distinct; areolet petiolate, narrow, subquadrangular; 

 second recurrent curved throughout, postfurcal; nervulus only 

 slightly postfurcal; postnervulus broken slightly below upper third; 

 nervellus broken at a slightly acute angle at about upper third; legs 

 very slender, hind femur of uniform thickness; apical joint of middle 

 tarsus as long as third joint, claws rather large with about twelve 

 large teeth. Abdomen very slender at base, the first tergite about 

 five times as long as wide at apex, second much more than twice as 

 long as basal width, sides only slightly divergent; ovipositor sheath 

 distinctly shorter than first tergite. 



Rufo-testaceous; orbits, vertex, and clypeus yellow, face medially 

 slightly reddish; antennae concolorus, apical half somewhat fuscous; 

 wings hyaline, stigma pale; legs concolorous, tibiae and tarsi paler; 

 ovipositor sheath fuscous. 



Type-locality. — Berkeley, California. 



Type.— Cut. No. 25995, U.S.N.M. 



Two practically identical females taken by E. O. Essig. 



PANISCUS ARIZONENSIS, new species. 



Differs from calif ornicus Cushman principally as follows: 



Female. — Length 12.5 mm.; antennae 11 mm. 



Ocelli distinctly but narrowly separated from eyes; face more 

 densely and distinctly shagreened, as is also the clypeus; antennae not 

 attenuate at apex, the subapical joints thick and about two-thirds as 

 thick as long; mesoscutum subopaque and distinctly shagreened; 

 propodeum coarsely transversely striate ; areolet subpetiolate, recur- 

 rent interstitial; nervellus broken at a right angle at upper third; 

 hind femur rather stout ; claws small with about eight large teeth; first 

 tergite httle more than four times as long as wide at apex ; second 

 little more than twice as long as wide at base; ovipositor sheath 

 fully as long as first tergite. 



Similar in color to californicus, but the antennae fuscous only at 

 apex. 



Type-locality. — Chiricahua Mountains, Arizona. 



Type.— Qui. No. 25996, U.S.N.M. 



