MUTILLA. 289 



white, the tarsal spines ferruginous. The wings are fuscous, and with fuscous nervures. 

 The radial cellule hardly reaches to the apex of the third cubital ; the first abscissa 

 of the radius is oblique, straight, and shorter than the apical, which is curved at the 

 termination. The second cubital cellule is as long as the first, and is dilated at the 

 apex ; the top is hardly so long as the part bounded by the first transverse cubital and 

 the first recurrent nervures ; the third cubital cellule is sharply angled in the middle 

 at the apex, the top not half the length of the bottom. The first recurrent nervure 

 is received a little beyond the middle of the cellule ; the second is almost interstitial. 

 The transverse median nervure is received distinctly before the basal. 



/ 



33. Mutilla ordinaria. 



Mutilla ordinaria, Smith, Descr. of New Species of Hymen, p. 225 (1879) x ; Blake, Trans. Am. 

 Ent. Soc. xiii. p. 204 \ 



Hal. Mexico, Orizaba 1 . 



I am unable to recognize this species from the description. Smith neither mentions 

 the form of the eyes nor of the basal segment of the abdomen, and it might, so far as 

 the description goes, be a Sphcerophthalma ; but Blake 2 places it in this section of 

 Mutilla. The basal segment of the abdomen is black ; the median segment has " large 

 shallow punctures." 



ff The basal segment of the abdomen ferruginous. (Species 34-38.) 

 ^ 34. MutUla thura. (Tab. XIII. fig. 19, 6 organ.) 



Long. 10 millim. c? . 



Hob. Panama (Boucard). 



Head hardly so wide as the thorax, shining, the vertex sparsely, the rest thickly 

 covered with silvery hair; the vertex with moderately large, distinctly separated 

 punctures ; the clypeus shining, the apex with three rather broad teeth ; the mandibles 

 entirely black. The scape of the antennse rather closely covered with silvery hair ; the 

 flagellum stout, the joints closely united and covered with a dull microscopic pile; the 

 third and fourth joints subequal. The pronotum punctured ; the apex hardly oval, 

 the sides being oblique ; the band of hair broad and thick. The mesonotum covered 

 with elongated punctures, and having also two furrows down the centre ; the hair 

 blackish. The scutellum moderately convex, the punctures large, the hair sparse and 

 whitish. The median segment has a gradually rounded slope to the apex ; it is shining 

 and irregularly reticulated, the reticulations larger at the base, which is covered densely 

 with silvery pubescence ; the central area is larger and wider than usual, its apex 

 rounded. The propleurse punctured at the base ; the mesopleurae punctured in the 

 middle and densely covered with silvery hair ; the metapleurae reticulated at the apex. 

 The basal abdominal segment is sparsely punctured and is entirely ferruginous, except 



BIOL, cente.-amek., Hymenopt., Vol. II., February 1894. 2 pp 



