96 p. CAMEKON. 



whether this means New JNIexico or North Mexico 1 am unable 

 to say now. 



Polistoniorpha iiis^romaciilata sp. uov. 



Fulvous, the thorax and head tinged with yellow. A triangular mark on the 

 sides of the vertex, extending from the eyes to the outer ocelli, it heconiiug grad- 

 ually narrowed from the outer to the innerside, a broad band on the centre of 

 the occiput, 2 large irregular marks on the basal slope of the pronotum, a band 

 on the apex, dilated in the middle to near the top of the basal slope, its base 

 rounded and narrowed, a broader and much shorter dilatation on the sides, the 

 mesonotum, except at the sides and apex, and. two lines down the centre, a broad 

 band on the base of the scutellum, its centre broadly extended to near the apex, 

 the postscutellum, except in the centre at the apex, 2 marks on the metanotum, 

 their sides straight on the inner side, rounded and narrowed towards the apex on 

 the outer and a small mark on the end of the segment in front of them black. 

 Legs fulvous, the hinder femora darker; there is a long fulvous, sharp-pointed 

 tooth behind the middle, which extends beyond the tibiae when they are pressed 

 against the lower side of the femora; following this are 4 short, blunt black 

 teeth closely pressed together and of equal size. Wings hyaline, slightly infnsca- 

 ted at tiie apex ; the nervures fulvous. % . 



Length 11 mm. 



Apex of clypeus broadly rounded, projecting; there is a stout keel between 

 the antennae which extends down the face, becoming gradually smaller and 

 more indistinct towards the clypeus; the vertex strongly punctured ; the sides 

 of the face and clypeus obscurely punctured and longitudially striated. Upper 

 part of thorax closely and strongly punctured, the metanotum keeled down the 

 middle. Pleurse more sparsely and less strongly punctured. Abdominal petiole 

 stout, broad, about one-half longer than broad, of almost equal width throughout. 

 Dorsal surface of abdomen closely and distinctly punctured, the apical segments 

 thickly covered with fulvons pubescence; the ventral surface shining, flat, 

 sparsely punctured. Malar space slightly longer than the scape of the antennae. 

 Hinder coxse sparsely and indistinctly, the femora and tibiae closely and strongly 

 punctured. Metapleurse irregularly obliquely striated. Last segment of abdo- 

 men above stoutly keeled, the keels narrowed at the base and apex ; in the cen- 

 tre is a shining, longitudinal line; the last ventral segment is broadly depressed 

 in the middle, the depression more clearly defined at the apex, which is clearly 

 separated, its sides straight and not oblique like the posterior part. The flagel- 

 luin of the antennae is broken off from the 3rd joint; the 1st joint is yellow; the 

 2nd and 3rd blackish. Mandibular teeth black. Coxal tooth distinct. 



Hab. — Panama. 



This is the first species of Polistomorpha I have seen. It comes 

 ch)se to P. surinamensis, of which a good description is given by 

 Schletterer. The two may be separated thus: 



Apex of clypeus transverse ; the femoral teeth irregular, with 4 large ones clearly 

 separated, the body not largely marked with black. 



suriiiaiiieiisiM West. 



Apex of clypeus distinctly rounded ; the femora with only one large tooth, the 

 body marked with black iiigroinaculata. 



