AMERICAN HYMENOPTERA. 91 



Crocisa ? lata. — % . — Form short, broad, very robust, black, finely punc- 

 tured ; head shining, sides of the face, clypeus, cheeks and occiput clothed with 

 rather long white pubescence; antennae obscure testaceous at tip and beneath ; 

 niesothorax nude between the wings, subopaque, finely carinate on lateral 

 margin and with a longitudinal impressed line on the disk and another less 

 deep on each side; thorax in front, at sides and behind clothed with long 

 whitish pubescence; a patch on each side of mesothorax anteriorly, a tuft on 

 each side behind tegulse, a patch behind scutellum and the anterior margin 

 of pleura clothed with black pubescence; scutellum subbilobate, broadly de- 

 pressed on disk; tegulce pale testaceous; wings tinged with yellowish- fuscous, 

 a dark streak at tip of marginal cell, which is elongate, lanceolate, the tip 

 rounded and extending beyond the third submarginal cell, second submarginal 

 cell narrow, obliquely subquadrate, the first recurrent nervure uniting with the 

 second transverse cubital nervure, third submarginal about twice the breadth 

 of the second, the apical nervure obtusely angular, receiving the second re- 

 current nervure at about the middle; legs clothed with black pubescence, 

 a patch on coxse and on base and apex of tibia above of white pubescence, 

 the femora beneath shining and fringed with black pubescence, posterior legs 

 robust; abdomen short, broad, convex, opaque, a broad transverse spot on 

 each side of first segment, and a large subangular mark, broadly dilated 

 laterally, on each side of segments 2 — 5, of dense appressed white pubescence. 

 Length .40 inch. 



Hab. — Texas, (Belfrage). One specimen. 



Melecta califoriiica.— 'S 9-— Black; head and thorax thickly clothed 

 with cinereous pubescence; a slight tuft on each side of face, two tufts on 

 anterior margin of mesothorax, a tuft on each side behind tubercles, and the 

 pleura beneath, of black pubescence; antennae very robust, the flagellum being 

 of uniform thickness; disk of mesothorax and of scutellum nude, shining, 

 sparsely punctured, the lobes of scutellum acute at tip; tegulfe obscurely 

 testaceous; wings broadly fuscous at tip, generally the apical cells are more 

 or less spotted with fuscous; femora fringed behind with a long white pubes- 

 cence, the tibiae covered above with a dense white pile, with a black or brown 

 patch at base and near apex of anterior and posterior pairs; abdomen opaque, 

 a broad band, interrupted medially, dilated laterally and subsinuate on each 

 side anteriorly, composed of dense appressed white pubescence, on all the 

 segments except the last. Length .35 — .40 inch. 



JIab. — California, (H. Edwards, Behrens). Ten specimens. 



91electa pacifica. — %. — Black; head clothed with long black pubes- 

 cence, that about base of antennae and on occiput mixed with pale; clypeus 

 nude, shining and margined at tip; antennae subrobust, scape clothed with 

 pale pubescence; mesothorax, scutellum and a patch before tegulae, clothed 

 with long dense ochraceous or pale ochraceous pubescence, elsewhere it is 

 black; scutellum with a. short acute spine on each side, hidden by the pubes- 

 cence; wings more or less tinged with fuscous, sometimes only on apical 

 margin; legs entirely black; abdomen shining, with a bluish or purplish 

 iridescence in certain lights, clothed with black pubescence, with a few pale 

 hairs intermixed, basal segment with long pale pubescence; venter pieeous. 

 Length .50 inch. 



Hub. — California, (H. Edwards). Two specimens. Allied to (ho- 



