32 HYMEN OPTERA. 



^ 



5. Sphex guatemalensis. (Tab. III. figg. 4, $ ; 4 «, j .) 



Nigra, capite et thorace longe aureo-liirtis, abdomine subtus, basi mandibularum, femoribus subtus late, geni- 



culis, tibiis tarsisque, rufis ; alis fusco-byalinis, apice fumatis, fere violaceis. c? 5 . 

 Long. 28 millim. 



Hab. Guatemala, San Geronimo {Champion). 



The golden hair is very bright and dense on the face, clypeus, front, pronotum above, 

 prostermim, sides of mesonotum, mesopleurae below the tegulse, tubercles, and on meta- 

 notum ; on the rest of the thorax it is thinner and fulvous. Middle of the clypeus 

 projecting, incised in the centre. Scutellum comparatively bare, deeply sulcated in the 

 centre, and more shining than the mesonotum. A furrow in the centre of the meta- 

 notum. Petiole as long as the hind coxa?, densely covered with pale golden hair, sulcated 

 in the centre above. Abdomen with an olive tinge, sericeous. Coxae and trochanters 

 densely covered with a golden pile, the tibise and tarsi also pilose. 



The male has, as usual, the hair on the head and thorax much thicker and longer ; 

 the abdominal segments reddish along the sides and at the extreme base and apex above ; 

 and the clypeus truncated at the apex and not produced in the middle. The amount of 

 red on the femora varies. 



8. guatemalensis may be known from S. hirsuta by the wings not being yellow and 

 having the nervures black, the petiole sulcated, and the abdomen reddish beneath, and 

 also by the much brighter golden pile, &c. 



^ 6. Sphex tinctipennis. (Tab. III. fig. 5, $ .) 



Nigra, capite thoraceque longe fusco-pilosis, facie argenteo-pilosis ; clypeo truncato ; alis flavo-fuscis, apice 



fumatis. § . 

 Long. 20 millim. 



Hab. Guatemala, El Tumbador 2500 feet {Champion) ; Costa Rica, Cache {Rogers). 



Sparsely punctured, shining ; metanotum opaque, finely transversely striated. Hair 

 longish, varying in tint from pale to fuscous, but inclining to fulvous on the meta- 

 notum ; the tubercles, a stripe along the top of the pronotum, the metanotum at the 

 base, and a spot on either side of the apex of the latter, silvery. Antennae longer than 

 the thorax, the fourth joint about half the length of the third. Apex of the clypeus 

 projecting, almost truncated, but indistinctly waved. Eyes slightly converging at the 

 apex. Frontal furrow small, narrow, shallow. Furrow in the centre of the meso- 

 notum indistinct, but along the sides broad, shallow ; scutellum indistinctly depressed 

 in the centre. Petiole stout, curved, and as long as the hind coxae ; sparsely covered 

 with long pale hairs. Abdomen sparsely clothed at the base with soft pale hair, at 

 the apex still more sparsely with longer fuscous hair. Legs more or less pruinose, 

 the coxae bearing longish silvery hair, the trochanters and femora more sparsely clothed 

 with hair. Second cubital cellule a little wider above than beneath ; the third at the 

 top about one fifth of the length of the bottom, being there less than the space bounded 

 by the second transverse cubital and the second recurrent nervures. 



