MACKOCENTKTTS.— OPIUS. 409 



a little shorter than the second ; the first transverse cubital nervure very oblique and 

 bullated at the bottom ; the transverse humeral nervure received a little in front of the 

 transverse basal nervure ; the recurrent nervure considerably in front of the first trans- 

 verse cubital ; the second cubital cellule at the apex scarcely half the width of the base, 

 and the radial and cubital nervures branch upwards and downwards from it respectively. 



ZELE. 



Zele, Curtis, Brit. Ent. p. 415 (1832) ; Haliday, Ent. Mag. iii. p. 140 (1835). 

 Phylax, Wesmael, Nouv. Mem. Acad. Brux. ix. p. 162 (1835) . 



n/ K'l. Zele fascicornis. (Tab. xvil. fig. 4, 2 .) 



Bufo-testaceus, pleuris sordide flavis, scapo antennaram et vertice nigris ; alis hyalinis, nervis fuscis, stigmate 



testaceo. $ . 

 Long. 10-11 millim. 



Hab. Guatemala, Paso Antonio 400 feet (Champion). 



Antennae longer than the body, densely covered with stiff black pile. Face trans- 

 versely striated ; front excavated, shining ; occiput with some scattered punctures ; 

 palpi very long ; tips of the mandibles blackish ; clypeus smooth. Mesonotum with 

 some large, scattered punctures ; parapsidal furrows deep ; a large and deep depression 

 at the base of the scutellum ; pleurae shining, impunctate ; a longitudinal depression 

 over the sternum ; metanotum blistered. Abdomen longer than the head and thorax 

 united ; compressed, the apex obliquely truncated ; petiole semiopaque, closely and 

 rather strongly punctured, longer than the second segment, the sides margined and 

 very slightly dilated towards the apex ; second segment punctured ; the other segments 

 obscurely punctured, the apical one covered with a rather long dense fulvous pile ; 

 ovipositor scarcely projecting. Legs rather long, stout, the base of the femora and the 

 tibiae paler, the hind femora of a more reddish hue than the body. Second cubital 

 cellule longer than the first transverse cubital nervure, the base almost twice as wide as 

 the apex ; cubitus broadly curved at the base. 



OPIUS. 

 Opius, Wesmael, Nouv. Mem. Acad. Brux. ix. p. 115 (1835). 



J Hr i. Opius mexicanus. (Tab. XVII. fig. 14, $ .) 



Ferrugineus, nitidus, antennis pedibusque nigris ; alis fumatis. $ . 

 Long. 4 millim. 



Hab. Mexico, Chapultepec (Bilimek). 



Antennae stout, longer than the body, the flagellum closely pilose. Head broader 

 than the thorax ; face below the antennae indistinctly keeled in the centre ; front 

 hollowed, but not deeply ; ocelli in a black patch ; clypeus finely punctured ; tips of 



biol. cente.-amee., Hymenopt., August 1887. 3 gq 



