JAMES CHESTER BRADLEY 
251 
Type material. — Holotype: Virginia: Falls Church, August 11, 
(Nathan Ranks), [Cornell University, No. 128.1]. Fourteen 
paratopotypes, August 7, 11 and 14, (N. Banks), [N. Banks 
and Cornell University]. 
Two specimens from Beatty, Pennsylvania, [Amer. Ent. Soc.] 
may be different. 
Myrmosa (Myrmosa) blakei new species, 9 . 
9 . Mahogany red; a large transverse spot on the second dorsal segment, 
and the entire dorsal segments 3 to 6, black; apical ventral segments, legs more 
or less, and the front, infuscated; pubescence sparse and inconspicuous, rather 
noticeable on the apex of the first dorsal segment. Length, 4 mm. 
Head large, subquadrate, long and broad behind the eyes, closely but shal- 
lowly punctate; ocelli small, about .0.5 mm. in diameter, the posterior pair 
.26 mm. from each other and .40 mm. from the ej'es; a blunt compressed spine 
on the face between the antennae; anterior edge of ch'peus prominently 
margined. First segment of the flagellum broader than long, equal to the 
pedicel, shorter than the second. 
Outline of thorax rectangular, ^\"ith a sharp incision at the metathoracic 
spiracles; the humeral angles sharp; the postero-lateral angles dentate; side 
pieces of pronotum punctate, merging into striate; pleura mostlj' impunctate 
and polished, in one place punctate; caudal aspect of propodeum truncate 
above, sloping below, smooth and polished, margined superiorlj- with a semi- 
circle of nine flattened teeth. 
Petiole with its apical part rough, ventrally with a sharp keel which is 
weakly notched, second segment regularlj*, moderate!}' strongly, and closely 
punctate; pygidium rather closely punctulate at base. 
Type . — New York, [American Entomological Society]. 
Myrmosa Myrmosa) species non descripta 
A single male from Exeter, California, collected by the WTiter, 
July 30, 1907, represents an undescribed species. As the speci- 
men has lost its head, I refrain from describing it, but have com- 
pared it with unicolor in the above short key, for the information 
of those who maj' be so fortunate as to find additional specimens 
in the field or amongst the material already in their collections. 
A Key to the Species of the Subgenus Myrmosula 
Insect black, at most with the tip of the abdomen reddish; cell R4 narrowed 
above, higher than long parvula Fox 
Head, thorax, and legs black, abdomen ferruginous; cell R4 quadrate, 
longer than high rufiventris Blake 
TRAXS. AM. EXT. SOC., XLIII. 
