G. C. DAVIS. 219 



If I IMA new gen. 

 Head transverse ; face strongly protuberant, punctured and pilose ; 

 vertex oval and not separated from the occiput by a sharp ridge ; 

 scape of antennae elongate, enlarged near the apex ; segments of 

 flagellum broader than long ; dorsum of thorax flat, pilose ; meta- 

 thorax faintly reticulate ; abdomen sessile, slender, elongate, com- 

 pressed and truncate at apex ; femora incrassate. 



Miina washiiigtoiiensis n. sp. 



9. — 5-8 mm. Black, with honey yellow legs, apex of posterior tibiae and tar- 

 sal segments and sometimes upper part of femora piceous ; tegnlse, mandibles and 

 palpi yellowish white; antennse dark brown, scape black; wings fusco-hyaline. 

 stigma and veins reddish brown ; abdomen with three basal segments depressed, 

 narrower than thorax, fourth segment scarcely as wide as the thorax and the 

 remaining segments compressed and trunciite at the apex ; ovipositor exserted and 

 lying along the truncated apex; thorax and abdomen sparsely and finely punc- 

 tured. 



Three specimens, all sent by Mrs. Slosson from Mt. Washington, 

 N. H. Type, coll. G. C. D. 



Tribe OBTHOCENTRINI. 



Body small, thickset. Head transverse, sometimes buccate ; eyes 

 entire ; face moderately or strongly protuberant, longitudinally con- 

 vex ; clypeus not, or obsoletely separated ; antennae with segments 

 shorter and stronger in 9 than S ; apex often involute ; scape 

 elongate and enlarged. Thorax generally polished, somewhat ele- 

 vated ; metathorax distinctly areolated as a usual thing. Abdomen 

 sessile, oblong ; more or less compressed, sometimes strongly so in 

 9 ; ovipositor short, scarcely exserted. Wings moderately broad ; 

 radial cell rather short ; areolet pentangular, subtriangular or want- 

 ing ; second recurrent nervure straight ; anterior legs moderate, 

 posterior ones rather long and strong ; coxae compressed ; tarsal 

 claws strongly produced. 



Foerster separates the tribe into the following genera : 



1. Ovipositor distinctly projecting beyond the apex of the abdomen 2. 



Ovipositor not extending beyond the apex of the abdomen 4. 



2. Wings without an areolet t Synopliis Foer. 



Wings with an areolet 3. 



3. First member of flagellum shorter than the second, .f Mii«*«i»i<la<*iis Foer. 

 First member of flagellum as long as second f PirrosligeuN Foer. 



4. Mesopleurte without carina or groove near the front border; metanotum 



without superior rnedian area o. 



Mesopleurse with distinct carina near anterior border 8. 



5. Posterior median area with a median carina Brephoctoiiiis Foer. 



Posterior median area without median carina; metanotum without areolet •(>. 



TKANS. AM. ENT. SOC. XXIV. AUGUST, 1897. 



