NORTH AMERICAN HYMENOPTERA. 201 



side with ochraceoiis, the apical margin densely clothed with ochrac^eous pubes- 

 cence, margined before with black, whicli is deeply crennlated behind, especially 

 on the middle ; remaining segments densely clothed with ochraceous pubescence, 

 with a large patch of black pubescence on the disc of the third, fourth and fifth 

 segments, largest on the third segment ; beneath ferruginous, the apical margins 

 of the segments fringed with ochraceous pubescence. Length 10 mm. (Cresson.j 



Hab.— Cuba. 



]VIiitilla <lubiatta Smith. 



Female. — Ferruginous, the eyes, flagellum and tips of the mandibles fusco-tes- 

 taceous ; thorax, as well as the head, closely and strongly punctured ; the sides 

 of the former parallel, or in some specimens slightly widest posteriorly, tips of 

 the femora and tibife slightly fuscous ; abdomen ovate, the apical margins of the 

 segments have facise of .silvery white ])ubescence ; beneath ciliated with similar 

 pubescence. Length 6..5-11 mm. (Smith.) 



Hab. — Florida, Georgia, Colorado. 



This specias in coloring corresponds with 3f. ferrugata of Fabricius, 

 but the thorax i.s of quite a different form to that of the insect which 

 is considered to represent that species ; in the present species the 

 thorax is more elongate and the sides nearly parallel ; in the other it 

 is shorter, and gradually narrows towards the abdomen. 



lUutilla euterpe Blake. 



Female. — Ferruginous ; head round, finely and closely punctured, face deeply 

 excavate at insertion of antennae ; eyes ovate, finely reticulate ; antennae, fuscous, 

 flagellum pruinose, scape finely punctured ; mandibles dark ferruginous before the 

 tips ; thorax elongate-quadrate, emarginate at sides ; pro- and metathorax rounded, 

 the former scarcely as wide as the latter, closely and deeply punctured, metathorax 

 abruptly truncate, stained with fuscous at apex ; flanks of mesothorax smooth ; 

 legs black, thinly clothed with pale pubescence ; intermediate and posterior 

 tibise feebly spined, calcaria white : abdomen ovate, basal segment black, second 

 minutely punctured ; apical margin broadly black, wider at middle on disc, 

 bearing a short longitudinal line of pale golden pubescence ; apical margin 

 fringed with similar pubescence, third segment black, apical segments fusco- 

 ferruginous, fringed with hairs of the same color. Length 12 mm. 



Hab.— Florida. 



This species is easily recognized by the form of the thorax ; it is 

 allied to fidicula Smith, which, however, has the abdomen longitudi- 

 nally rugose. 



mtitilla riifa St. Farg. 



MtZe.^Eufo-ferruginous ; head pubescent, face black, reddish on the vertex 

 and between the eyes ; vertex with blackish hairs ; antennae black ; thorax black 

 beneath, reddish above and on the sides, hairs rufo-griceous ; abdomen ferrugi- 

 nous, pubescent; first segment and posterior margins of all the segments black- 

 ish ; second nearly naked, hairs rufo-griceous ; legs black, clothed with silvery 

 hairs; wings blackish violet, the first submarginal cell having a transverse. 



TRANS. AMER. ENT. SOC. XIII. (26) AUGUST, 1886. 



