230 P. CAMERON. 



violaceous; the basal half of the radius is rouurlly curved ; the apical is equal iu 

 length to it and is straight and oblique ; the 2nd cubital cellule at the top is one- 

 third longer than the 3rd on the top : below it is shorter than it; the 1st and 2nd 

 transverse cubital nervures are roundly curved ; the 2nd recurrent nervure is re- 

 ceived almost in the middle of the cellule; the transverse median nervure is not 

 quite interstitial, it beiug received shortly beyond the transverse median ; the 

 accessory nervure in the hind wings is interstitial. The 3rd, 4th and 5th ven- 

 tral segments bear a thick tuft of longish black hairs. 



Hab.— Ambato, 8600 feet. 



This species is not unlike H. machachiensis, but may be separated 

 from it by the 3rd cubital cellule being longer compared with the 

 2nd, it being not much shorter than it, where in machachiensis it is 

 hardly one-half its length ; by the 3rd transverse cubital nervure 

 being roundly curved, instead of having its upper half straight and 

 obliquely bent; and the pronotum and head are thickly covered 

 with long black hair, instead of being bare as in the other species. 



SPHEGIM]. 



Sphex II sir purl opus Edwardsi sp. nov. 



Black ; the 2nd and following segments of the abdomen red ; the wings fus- 

 cous-violaceous, the 2nd recurrent nervure interstitial with the 2nd transverse 

 cubital ; the claws with 4 short teeth. 9 all( ^ £ • Length 14 mm. 



Has the form and coloration of S. thomse, but is readily separated from it by 

 the interstitial 2nd recurrent nervure and by the sen tell urn not being broadly 

 depressed in the middle. Head on the top sparsely covered with white hair; the 

 face, lower inner orbits and clypeus thickly covered with silvery pubescence 

 and more sparsely with longish white hair. Eyes parallel, not converging. The 

 apex of the clypeus has a large, somewhat semi-circular depression in the middle 

 at the apex, which has a distinctly depressed margin. Thorax densely covered 

 with greyish longish hair. Basal half of the mesonotum alutaceous; the apical 

 finely, closely longitudinally striated. The scutellum is hardly depressed in the 

 ceutre. The median segment is more distinctly punctured than the mesonotum ; 

 there is a smooth shiniug shallow furrow on either side leading to the stigmas. 

 Wings uniformly colored; the second cubital cellule is scarcely longer above 

 than the 3rd; it receives the first recurrent nervure near its base; the 2nd is 

 interstitial, as is also the transverse basal nervure. The fore tarsi are thickly 

 covered with long spines; the others and the tibiae have shorter stouter spines; 

 the long spur of the hinder tibia? bears long spines, which become gradually 

 shorter towards the apex of the spur. The abdominal petiole is long, curved and 

 covered with soft white hair. 



The % has the head and thorax much more thickly haired than in the 9 i the 

 3rd cubital cellule is distinctly shorter compared with the 2nd ; the apex of the 

 petiole and the 2nd segment are broadly black above; the last abdominal seg- 

 ment becomes gradually narrowed towards the apex and is indistinctly keeled 

 in the middle above. 



Hab.— Ambato, 8630 feet. 



