8 HYMENOPTEKA. 



striated ; and the metanotum to have " an elongate, angular space at the base rugose, 

 on each side of which is an oblique striation " (in A. aureo-notata the metanotum is 

 entirely striated). In A. barbata the wings are " hyaline, with their apical margins 

 fuscous beyond the apex of the marginal cellule, the fuscous border sharply denned." 



I 



8. Ammophila ceres. (Tab. I. fig. 10, <j .) 



Nigra, dense griseo-pilosa, punctata, thorace supra transverse striolato ; alis fusco-hyalinis. S • 

 Long. 31 millim. 



Hab. Guatemala, San Geronimo (Champion). 



The hair on the head is longer than that on the thorax and is blacker ; the face has a. 

 griseous pubescence ; the vertex and front are punctured rather strongly ; the latter is 

 not much depressed in the middle, where there is a shallow furrow. Clypeus broadly 

 transverse at the apex, slightly retreating in the centre, giving the appearance of an 

 incision there ; it does not project. Front ocellus separated from the posterior ocelli 

 by fully half the space between these. Third antennal joint one half longer than the 

 fourth. Pronotum broad, rather long; an oblique broad furrow on the pleurae. A 

 broad shining furrow runs down from the tegulae. Sternum indistinctly furrowed. 

 Thorax densely covered with long griseous hairs ; densely and strongly punctured, above 

 strongly transversely striolated ; the scutellum with some stout longitudinal keels ; 

 postscutellum more raised, rugose, a stout keel on its apical margin. There is an 

 indistinct furrow in the centre of the mesonotum ; the metanotum is depressed 

 laterally. The petiole is nearly as long as the thorax ; the third segment is rufous 

 laterally and beneath in the middle. The legs are hoary ; the coxae bear a few hairs ; 

 the tarsi are very shortly spinose. The second cubital cellule is twice the length of 

 the top at the bottom, the top not being much longer than the space bounded by the 

 first transverse cubital nervure and the first recurrent nervure ; the latter is recurved 

 a little before the middle of the cellule ; the third cubital cellule is of nearly equal 

 width at the top and bottom ; the third recurrent nervure is bent outwardly a little 

 below the middle. 



B. Abdomen more or less red in the middle. (Species 9-28.) 



a. Legs entirely black. (Species 9-25.) 

 1. Wings yellowish ; head and thorax bluish. (Species 9.) 



^ 9. AmmophUa zanthoptera. (Tab. I. fig. 4.) 



Mgro-caerulea, dense fusco-pilosa, punctata ; metanoto transverse striolato ; abdominis medio rufo ; alis flavo- 



hyalinis, stigmate nervisque flavis. $ . 

 Long. 27 millim. 



Hab. Guatemala, Calderas 6000 feet (Champion). 



