Mar., 1909.] ROHWER : CrYTOCAMPUS IN BOREAL NORTH AMERICA. 23 



The supposed gall of this species is much like the gall of C. 

 £oopercB Ckll. It is on Salix brachycarpa. 



The adult is very different from C. coopet-ce, easily distinguished by 

 being darker, the different shaped stigma, etc. In color it is much 

 like C. albirictus Cress., but is larger. There is no testaceous spot 

 between the eyes, etc. 



14. Cryptocampus parvus (Rohwer). 



Enura mintiata Waldon, Can. Ent., Sept., 1 907, p. 302, xxxix. 



Enura parva Roh., Can. Ent., xl, No. 6, June, 1907, p. 176. 



Female. — Length 3.5 mm. ; length of anterior wing 3.5 mm. Head seen from 

 the side is gently rounded in front. Clypeus rather shallowly, circularly emarginate ; 

 lobes broad, subobtuse. Antennal fovese not strong. Middle fovea rather deep, 

 elongate. Ocellar basin wanting. Above the frontal crest there is a shallowly de- 

 pressed area. Frontal crest rounded, very genily emarginate in the middle. Ocellar 

 furrows not strongly defined, almost wanting. Third and fourth antennal joints 

 equal ; apical joint tapering, equal in length with the preceding ; fourth and fifth 

 joints with a little spine at apex above. Head and dorsulum finely, closely punc- 

 tured. Claws minutely cleft ; teeth equal or subequal. Venation normal. Stigma 

 rounded on lower margin, rather acuminate. Sheath straight above, parallel-sided, 

 rounded at the apex ; hairs rather long and dense. Cerci slightly tapering, longer 

 than the sheath above. Dark brownish-black to black ; face below frontal crest, 

 clypeus, labrum, mandibles (apices piceous), inner orbits narrowly, posterior and 

 superior orbits broadly, angles of pronotum, tegulae, legs entirely, abdomen except a 

 broad brownish band above and the sheath, reddish-yellow. Antennae brownish be- 

 neath. Wings hyaline, not strongly iridescent ; venation pale brown, costa and 

 stigma pallid. 



Habitat. — Ft. Collins, Colo. (April and May). 



This species should be easily recognized by its small size. It is 

 most closely related to s. -nodus Walsh, but is quite distinct from that 

 species. 



15. Cryptocampus maurus, new species. 



Female. — Length 4 mm. ; length of anterior wing 4 mm. Head rounded, rather 

 small. Short, robust species. Clypeus shallowly emarginate ; lobes broad, rounded 

 at apex. Antennal foveae large, deep, broader above the antennre. Middle fovea 

 distinct, elongate, open above. Ocellar basin shallow, walls low, rounded. Frontal 

 crest deeply notched. Interocellar furrow evident ; lateral ocellar furrows distinct 

 from level of ocelli to antennal fovese. Antennae rather short ; third and fourth joints 

 equal ; apical joint slightly rounded beneath, equal in length to preceding ones. 

 Head rather finely, closely punctured. Dorsulum shining. Claws deeply cleft, inner 

 tooth shorter. Venation of fore wings normal ; upper discal cell of hind wings small, 

 greatly exceeded by the lower one on the outer margin. Stigma broadest at base, 

 tapering to apex. Sheath distinctly emarginate above, broad at base, long, obliquely 

 tapering to a rounded apex. Cerci as long as sheath above, thick for basal third, 

 thinner the rest of the way. Black : labrum, mandibles, legs below femora (tarsi in- 



