STEONGYLOGASTER. 5 



Rah. Guatemala, Capetillo, San Geronimo (Champion). 



Antennae longer than the abdomen, pilose, filiform, very slightly thickened in the 

 middle; third joint thin; the basal joint and the apex of the fourth to seventh white ; 

 clypeus, labrum, palpi, and mandibles, except at apex, white. Clypeus incised, the 

 sides acute. Eyes slightly converging. Frontal area and sutures on vertex flat ; central 

 fovea over antennas deep, the lateral ones less distinct. Mesonotum black, save the 

 scutellum and the greater part of the middle lobe, which are white ; pleura? white, a 

 longish, broad, oblique stripe, a smaller broad one on mesopleura, and one over the 

 middle coxae slightly longer than broad, black; breast black in front, the black 

 extending down the middle as a thin line, which joins a transverse broader line at the 

 apex ; the parts on each side of the central line testaceous. Abdomen testaceous, the 

 greater part from the apex of basal segment black. Of the legs the coxae and 

 trochanters are white, the posterior trochanters are marked with black on the under- 

 side ; the tarsi are paler than the tibiae. The third cubital cellule is shorter than the 

 second, wider at the apex than at the base, and receives the transverse radial nervure 

 a little beyond the basal third of the cellule ; the second cubital cellule has a horny 

 point ; the transverse median nervure is received a very little beyond the middle of 

 the cellule. Accessory nervure in hind wing shortly appendiculated. The head is 

 broader behind than in most of the species, and retreats on each side of the antennae. 



The male has the greater part of the breast testaceous, and the abdomen has no black 

 on the upperside. 



3. Strongylogaster v-flavum. 



Niger, longus, flavo variegatus, anteimis basi pedibusque pallide testaceis ; femoribus posticis supra nigris ; alis 



f usco-byalinis, stigmate testaceo, cellula cubitali tertia longiore quam secunda. $ . 

 Long, fere 10 millim. 



Hah. Guatemala, San Geronimo (Champion), female; Panama, Volcan de Chiriqui 

 3000 to 4000 feet (Champion). 



Antennae shortly pilose, nearly as long as the abdomen, black, the three basal joints 

 testaceous, the third about one third longer than fourth, fourth longer than fifth, the 

 four apical subequal, the sixth thicker than the following. Clypeus incised, but not 

 deeply ; mandibles, palpi, labrum, and clypeus white ; the apex of the mandibles 

 black ; the space between the antennae and inner orbits of the eyes to a little above 

 the middle testaceous. The borders of the middle lobe of the mesonotum broadly, 

 a line (broadest behind) on inner side of lateral lobe, one proceeding from near the 

 tegulae to the scutellum, scutellum and postscutellum yellowish testaceous; tegulae, 

 pronotum, a large triangular mark on mesopleura, and an oblique line joined to the 

 middle coxae yellow ; a round testaceous mark above posterior coxae. The abdomen if 

 testaceous, marked above with black transverse lines, which become broader and closer 

 towards the apex. The coxae and trochanters are white, the posterior coxae black 



