, AMMOPHILA. 21 



31. Ammophila alpestris. (Tab. i. fig. 16, s ; Tab. II. fig. 5.) 



Nigra, dense et longe fusco-hirsuta ; clypeo et facie dense argenteo-pilosis ; abdominis segmentis l°-3 m runs ; 



alis fusco-hyalinis, violaceis, apice fumatis. <$ . 

 Long. 15-17 millim. 



Hah. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 



Third antennal joint one half longer than the fourth. Head indistinctly, the thorax 

 strongly, punctured ; metanotum transversely rugosely punctured ; centre of the pro- 

 and mesonotum narrowly furrowed, the lateral furrows of the mesonotum narrow. 

 Petiole slightly curved, nearly twice the length of the hind coxae, at the base bearing 

 long pale hair, and sparsely punctured. Legs densely pruinose, the coxae, trochanters, 

 and femora bearing long pale hair. 



32. Ammophila sonorensis. (Tab. II. fig. 6.) 



Nigra, dense pilosa, punctata ; abdominis segmentis l°-3 m runs, 4°-7 m caeruleis ; alis violaceis, apice fuliginosis. 

 Long. 14-18 millim. 



Hab. Mexico, Northern Sonora (Morrison). 



Third antennal joint nearly twice the length of the fourth. Hair on the head and 

 thorax rather long, dense, and black. Head and thorax almost shining, closely 

 punctured ; metanotum opaque, rugose ; metapleurae obliquely striolated and punctured ; 

 scutellum sparsely punctured, striolated laterally and at the apex; sides of the 

 prothorax striolated; mesonotum indistinctly furrowed laterally and in the centre. 

 Petiole scarcely one third longer than the hind coxae; sparsely punctured, and 

 covered with long black hair. Coxae, trochanters, and femora sparsely covered with 

 long black hair ; tibiae pruinose. First recurrent nervure received a little beyond the 

 middle of the cellule. 



The male has the clypeus rounded at the apex, and bears, as does also the face, a 

 sparse silvery pile ; and the petiole almost twice the length of the hind coxae. 



J 33. Ammophila morrisoni. (Tab. II. fig. 10, <? .) 



Mgra, punctata ; capite et tborace dense et longe cinereo-pilosis ; pedibus 4 anterioribus runs, basi late nigris ; 



abdomine nigro, medio late ruf o ; alis hyalinis, tegulis nigris ; clypeo exciso. <$ . 

 Long. 22 millim. 



Hal. Mexico, Northern Sonora (Morrison). 



The silvery-white hair is long, moderately dense, and almost uniformly distributed. 

 The third antennal joint is more than one half longer than the fourth. The 

 head and thorax are closely, but not very deeply, punctured; the scutellum bears 

 some large punctures ; the postscutellum is almost impunctate ; the metanotum is 

 coarsely transversely striated. There is no central furrow on the mesonotum. The 

 petiole is entirely black; the second segment is lined with black above; the third 

 segment is entirely red, the fourth red at the base. The petiole at the base and the 



