joppa. 193 



30 (29) . Pleurae entirely black, femora broadly black. 



31 (32) . Metanotum black, a small fascia in middle of hind wings .... geniculata. 



32 (31) . Metanotum yellow, no fascia in hind wings xanthostoma. 



33 (28). Mesonotum yellow, with three black longitudinal lines ; metanotum 



spotted with black sumichrasti. 



1. Joppa melanocephala. (Tab. IX. fig. 4.) 



Joppa melanocephala, Cameron, Ent. Mo. Mag. xxi. p. 104 \ 



Flavo-testacea ; capite, antennis, abdominis apice tarsisque posterioribus, nigris ; alis flavo-hyalinis, apice 



violaeeis, stigmate flavo. 

 Long. 21-22 millim. 



Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet, Bugaba 800 to 1200 feet 1 

 (Champion). 



Head shining, smooth, bearing a few shallow punctures, especially on the face ; 

 mandibles and palpi yellow. Scape of the antennae punctured. Sides of the pronotum 

 obscurely striated in front. Mesonotum semiopaque, closely punctured all over, the 

 punctures being more widely separated along the sides. Meso- and metapleurae punc- 

 tured, obscurely striated. Scutellum longitudinally striated, the striations large, 

 widely separated, especially at the sides, where they form almost keels; the depression 

 at the base is also striated. Metanotum punctured, transversely striated in the 

 middle ; there is one large median area, the base of which is rounded ; on either side 

 is another area of nearly equal length ; outside of these again is one which is still 

 longer, as it originates further back ; there is a deep depression between the smooth, 

 shining, impunctate postscutellum and the metanotum, which rises gradually from this 

 hollow, it being there smooth and shining to the commencement of the median area. 

 Petiole smooth, shining, hollow in the middle, the sides obscurely margined, the apex 

 punctured ; postpetiole longitudinally striated, the striations large, the centre hollow. 

 Gastrocceli transverse, large, deep, united by a wide furrow, which, like the whole of 

 the segment, is striated ; the striation on the abdominal segments is strong, becoming 

 gradually weaker towards the apex of the third, which is scarcely striated there ; the 

 apical segments are not striated, but are obscurely punctured. Coxae punctured. The 

 violaceous cloud in the fore wings commences at the base of the radial cellule. 



A specimen from Bugaba has three blackish, almost confluent, marks on the meso- 

 notum. Sometimes the apex of the third segment is blackish and the apex of the 

 clypeus yellow ; the scape is sometimes piceous. As in most of the species, the yellow 

 on thorax varies from yellow to fulvous. 



2. Joppa varipes. (Tab. IX. fig. 9.) 



Joppa varipes, Cameron, Ent. Mo. Mag. xxi. p. 104 \ 



Flavo-testacea ; antennis, vertice, abdominis apice, tarsis, tibiarum apice femoribusque pro parte, nigris ; tarsia 



albidis ; alis flavo-hyalinis, apice fumatis, stigmate flavo. 

 Long. 11-12 millim. 



biol. CENTK.-AMEE., Hymenopt., July 1885. 2 cc 



