OP THE ISLAND OP ST. TINCENT. 133 



Subfamily Opies"^. 

 Gnamptodon, Holiday. 



G-NAMPTODOF ? ATKICAUDTJS, Sp. n. 



$ . Length 1| millim. ; ovipositor as long as the abdomen. 

 Pale ferruginous, finely sliagreened. Head transverse, the occi- 

 put margined. Antennae slightly dusky towards tips. Thorax 

 with two deep furrows, with sparse white hairs along the margins. 

 Scutellum with a crenate furrow at base. Mesopleura with an 

 oblique furrow below the middle. Metatborax finely rugose, 

 iudistinctly areolated. "Wings hyaline, the venation pale ; the 

 first branch of radius very little shorter than the second, the 

 recurrent nervure interstitial with the first transverse cubital 

 nervure, the submedian cell slightly longer than the median. 

 Abdomen elongate-oval, the first segment and basal two-thirds of 

 the second finely rugose and striated, the second with a trans- 

 verse furrow, the apex and the following segments smooth. 



Sah. St. Vincent. 



Described from two specimens. 



This species does not agree exactly with the definition for the 

 genus Onamptodon, having the occiput margined and only one 

 transverse suture on the second abdominal segment. In having 

 the occiput margined it agrees with Ademon, Hal., but in all 

 other characters it does not agree, and in my perplexity I have 

 placed it doubtfully in Gnamptodon. 



Opiijs, Wesmael. 



Table of Species. 



Mesonotum with fuiTows, or at least trilobed 3. 



Mesonotum without furrows, not trilobed. 



Recurrent nervure interstitial with the first trans- 

 verse cubital nervure, or joining the first sub- 

 marginal cell 2. 



Recurrent nervure not interstitial, or joining an 

 angle in the second submarginal cell. 

 Black, legs pale ; the third abdominal segment 



longer than the first 0. Salvini. 



Honey-yellow, the head black ; second and third 

 abdominal segments equal, shorter than the 



first 0. melanocepJialus. 



Entirely honey-yellow ; second abdominal seg- 

 ment short, with oblique fovese at base .... 0. insularis. 



