OPHION. 291 



and narrow first discoidal cellule. The two horny points in the fore wings are distinct, 

 as is also the line running from the triangular point. In the examples from Guatemala 

 the apical half of the abdomen is fuscous. 



2. Ophion (Eniscopilus) concolor. (Tab. XII. fig. 24.) 



Ophion concolor, Cresson, Proc. Ent. Soc. Phil. 1865, p. 56 1 . 

 Hab. Guatemala, San Geronimo (Champion). — Antilles, Cuba K 



I am not quite certain about the Guatemalan examples being conspecific with 

 0. concolor ; but on the whole they agree fairly well with the description. In two 

 specimens the outer horny point is rather large, in another it is obsolete. 



3. Ophion (Eniscopilus) thoracicus. 



Ophion thoracicus, Cresson, Proc. Ent. Soc. Phil. 1865, p. 55 1 ; Proc. Acad. Phil. 1873, p. 374 2 . 

 Hab. Mexico, Cordova (Sumichrast 2 ).— Antilles, Cuba 1 . 



4. Ophion (Eniscopilus) flaVO-SCUtellatuS. (Ophion thoracicus, Tab. XII. 



fig. 25.) 



Ophion flavo-scutellatus, Brnlle, Hist. Nat. Ins. Hymen, iv. p. 140 \ 



Hab. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion) ; Costa Eica, Irazu 



6000 to 7000 feet (Rogers). 



This insect usually has a broad fuscous band on the metanotum ; sometimes, how- 

 ever, the fuscous colour is almost obliterated. It varies in size about 3 millim. The 

 usual form of the outer horny point is rather long and conical at either end ; some- 

 times irregular at the ends; and in one specimen it is very small. A well-marked 

 feature of this species is the clearly-defined keel down the centre of the meta- 

 notum. 



5. Ophion (Eniscopilus) fdscicornis. 



Hab. Guatemala, San Geronimo (Champion). 



Similar in coloration to O. flavo-scutellatus, except that the mesonotum is marked 

 with dark fulvous, not fuscous; differing otherwise in being smaller, in there being a 

 distinct longish tubercle below the antennae, in the metanotum being smooth and 

 impunctate and with the transverse keel rather indistinct, and the antennae dark fuscous, 

 almost black. The head and pleurae are yellowish ; the metanotum behind the trans- 

 verse keel is scarcely wrinkled. 



2pp2 



