AKT. 2.V CHALCID FLIES NORTH OF MEXICO BALDUF 23 



Described from five specimens, the type and a female paratype 

 on points in the collection of the United States National Museum. 

 the allotype and the other two paratypes on slides in the writer's 

 collection. It is possible that this is a small, lighter-colored form 

 of D. fava Ashmead, but it seems sufficiently distinct to be a separate 

 species. 



7. DECATOMA DISHOLCASPIDIS. new species 



Plate 1, Figure 6: Piatf: 3, Figure 34 



Kesembles D. f,amm;inneiventrls Girault in size and form, but is 

 easily distinguished from it by the absence of the broad black mid- 

 dorsal thoracic band, the shape of the submarginal band, and the 

 presence of the usual longer hairs on the wing surface; still more 

 like ilava Ashmead in color, differing chiefly in having a much 

 broader submarginal band sometimes greatly dilated on both its 

 lateral margins. 



Female. — Length 3.1 mm., rather robust in form; the head and 

 thorax, including propodeum, reddish brown with a tinge of yellow, 

 except as follows : A narrow circumocular band and antennae honey 

 yellow but on more mature specimens medium brown, occiput lighter, 

 approaching pronotum in color, each ocellus partly inclosed in a 

 small dark blotch, on one specimen a faint dark band extending 

 from each lateral ocellus to antennal scrobe ; prothorax light brown- 

 ish yellow, scutel feebly infuscate or disk with a blotch of black, 

 a patch on either side of anterior end of propodeal groove, and 

 sterna of thorax and propodeum in small part, black; front and 

 middle coxae yellow, lighter than pronotum, hind coxae darker and 

 concolorous with femora, but lighter than mesothorax, middle and 

 hind femora more or less black on inner face, and hind femur slightly 

 infuscate on outer face also, tibiae light yellowish brown except 

 outer face of front tibiae lightly infuscate at base, and of middle 

 and hind tibiae entirely brown and black respectively, tarsi honey 

 yellow; submarginal band dark brown, to light brown as in -fiava 

 Ashmead, diverging from stigma, the proximal margin slightly and 

 the distal margin sharply rounded or at an angle of 45° from end of 

 stigmal vein for half the length of the band, then sharply rounded 

 toward its apex, apex very broadly rounded, maximum width of 

 band almost equal to length, extending on proximal side five-sixths 

 across the wing, or both margins almost equally moderately convex, 

 one-fifth longer than wide, jug-shaped, secondary band amber-col- 

 ored and faint; abdomen light yellowish brown ventrally, becoming 

 darker dorsad and more or less deeply infuscate above. 



Head slightly more than half as long as broad, front only 

 slightly convex, vertex only slightly elevated above the eyes, 

 temples not prominent, occiput feebly concave, outline of head 



