24 Journal New York Entomological Society. [Voi. xii. 



Heriades bruneri, new species. 



9. Length 6.5 mm. Shining black, pubescence of head and thorax pure 

 white, of abdomen and tarsi yellowish. Head and thorax coarsely confluently punc- 

 tured, punctures on disc of thorax sometimes separate, on clypeus not so coarse as on rest 

 of head. Occiput (except hind margin), middle of face, clypeus, mandibles and disc 

 of thorax with sparse pubescence. Head not so broad as thorax, face narrower than 

 in H. carinatum. Antennae short, black, slightly embrowned beneath ; clypeus with a 

 shallow central marginal concavity from which there projects a minute blunt central 

 tooth and two smaller lateral teeth, outside of each of these latter, on the clypeal 

 margin, is another minute tooth ; labrum elongate, punctured, rounded at tip ; man- 

 dibles broad at apex, with no " submedian dentiform angle," simple at base, triden- 

 tate, outer tooth sharp, slightly reddish, other teeth short, blunt, scarcely separable, 

 cheeks fringed with white pubescence ; maxillary palpi three-jointed, joints almost as 

 in H. triincoriim L. ; labial palpi four-jointed, first as long as second ; third and 

 fourth short, subequal. Tegulas polished, minutely punctured, wings very dark, 

 veins black. Legs black, femora and tibiee clothed with sparse white pubescence, 

 hairs on tarsi quite bristly. Abdominal punctures fine, close, but separate, pubes- 

 cence on hind margins of all segments, thin on I-3, becoming denser successively on 

 4-6, these latter segments, especially 5 and 6, having short fulvous-yellow hairs on 

 disc. Ventral scopa long and richly yellow. 



$ . Length 6 mm. Closely resembles the female. Mandibles narrower at tip, 

 outer tooth sharp ; occiput smooth and shining at sides, antennse reaching almost to 

 tegulse, pubescence of clypeus and fringe on cheeks denser and white, sparse on re- 

 mainder of head and on thorax ; tegulae paler than in female ; pubescence on hind 

 margins of first two dorsal abdominal segments whitish, on segments 3-5 yellowish, 

 hind margin of sixth segment bare, evenly rounded at apex. A slight enlargement 

 of first ventral segment may be seen, but it is not sufficiently developed to call a tooth, 

 first two ventral segments coarsely punctured. 



Three 9 at Juan Vinas, Costa Rica, 2 March, 1902, and one $ 

 at Monte Redondo, Costa Rica, 3 March, 1902, by Prof. Lawrence 

 Bruner. One 9 and one $ deposited in the U. S. National Museum. 



Type. —No. 6857. 



Genus PROCHELOSTOMA Robt., 1903. 

 Prochelostoma philadelphi Rob. 



I have examined a number of specimens of this species from Colum- 

 bus, Ohio, collected May 24, 25, 28 and 29, 1902, by J. C. Bridwell. 



The spurs on the middle and hind tibise are distinctly serrated, on 

 the hind tibi^ one being short and sickle-shaped, the other long and 

 more coarsely serrated. The middle tibia has a distinct prominent 

 tooth on the outer side at the apex. Maxillary palpi short, first joint 

 globular, second stout, about as long as fourth, third shorter than 

 second, about as long as first, third and fourth slender, fourth taper- 

 ing, somewhat finger-shaped. 



