NEW MICROJOPPA FROM TRINIDAD. 269 



formed, while the posterior are reduced to mere dentiform rudiments. 

 The apical portion of the marginal cell is shorter than in coiifusa. 

 The M. confusa compared is one of Cresson's types. 



Hab. Florissant, Colorado, at flowers of Geranium fremontii, 

 July 23rd, 1907 (S. A. Bohwer). 



Melissodes mysops, Ckll. 

 Mr. S. A. Rohwer took one female and fourteen males at 

 flowers of Carduus acaulescens at Florissant, July 24th-29th, 

 1907. The males mostly differ from the type in having the 

 yellow of the clypeus strongly trilobed, and the scutellum is 

 often without black hair ; but the species remains quite distinct 

 from M. cnici. 



University of Colorado, Boulder, Colorado : 

 October 15th, 1907. 



NEW MICROJOPPA FROM TRINIDAD. 



By P. Cameron. 



Microjojjpa dentipes, sp. nov. 

 Bright orange yellow, the antennas, front except laterally, vertex, 

 upper part of occiput narrowly, middle of pronotum, mesonotum, 

 middle of scutellum to the lateral furrows, the third abdominal 

 segment except laterally and the following entirely, black ; the black 

 on the apical segments tinged with violaceous. Wings yellowish 

 hyaline to the transverse basal nervure, the following part clear 

 hyaline, the apex from shortly behind the apical abscissa of the radius, 

 the cloud becoming narrowed behind, and a narrower cloud on the 

 apex of the hind wings, fuscous, the stigma and apical nervures 

 black. Legs coloured like the body, the apical half of hind femora, 

 about the basal fourth of hind tibiae and the four posterior tibiae, black. 

 Pubescence dense and white. $ . Length, 14 mm. 



Trinidad. 



First abdominal segment except narrowly at the base, and the 

 second strongly, acutely longitudinally striated, the basal three- 

 fourths of the third more closely and finely striated. Apex of 

 clypeus with two rows of punctures, the rest of the head smooth. 

 Scutellum sparsely punctured, more closely towards the apex, the 

 sides before the apex irregularly longitudinally striated ; the sides 

 stoutly keeled to near the apex, furrowed inside the keel. Basal 

 third of metanotum smooth, the rest closely, distinctly, but not 

 strongly punctured. Areola slightly wider than long, the apex 

 rounded inwardly. Apex of mesopleurae with a crenulated border. 

 On the inner side of the hind coxae, near the apes, is a short, stout 

 tooth. Areolet narrowed in front, the nervures almost touching, the 

 recurrent nervure received shortly beyond the middle. 



Allied to M. geniculates, Cam. 



