394 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 83 



Remarks. — Described from three females and two males. The type, 

 labeled "N. J. 2057, collection C. F. Baker", and the allotype, *Ta. 

 2216, collection C. F. Baker", and a female and the male paratope, 

 both from Louisiana, also from the Baker collection and bearing, 

 respectively, nos. 2337 and 2335, are in the United States National 

 Museum collection. The other female paratype, from Falls Church, 

 Va. (Aug.), is in the Museum of Comparative Zoology. 



PERILAMPUS CHEYSOPAE Crawford 



Penlampus chrysopae Crawford, Proc. Ent. Soc. Washington, vol. 16, p. 73, 1914. 

 Perilampus chrysopae var. laevicephalus Crawford, Insecutor Inscitiae Men- 

 struus, vol. 4, p. 144, 1916. 



Female. — Length about 1.5-3 mm. Head: Frous without a carina, 

 meeting vertex in more or less of a curve, upper part of frons between 

 eye and scrobal cavity usually wrinkled or rugose (in males the 

 sculpture sometimes extending to base of antennae) and ocellocular 

 area often similarly sculptured; anterior ocellus cutting or nearly 

 cutting line tangent to anterior margins of lateral ocelli, the anterior 

 margin of anterior ocellus usually not far in front of anterior margins 

 of lateral ocelli; malar furrow, with rare exceptions, half or less than 

 half the width of cheek at apex; cheeks convexly rounded; head in 

 front view distinctly transverse, rarely somewhat subtriangular; eyes 

 reaching to or beyond level of base of clypeus (latter condition 

 generally more marked in the males). 



Thorax: More or less robust; area along inner margin of parapsides 

 smooth or only very weakly sculptured, occasionally with some fairly 

 prominent punctures; umbilicate punctures on mesoscutum and 

 scutelium large and somewhat angulated, the interspaces thin, mere 

 septa, rarely with the interspaces widened and punctures round or 

 roundish; scutelium usually broadened apically and usually more or 

 less conspicuously emarginate at apex; pronotum laterally usually 

 very distinctly shorter than dorsal margin of prepectus; ax-illa \vith a 

 triangular or roughly triangular extension as wide as or wider than 

 long on side of scutelium, its base extending above middle of axilla; 

 surface of axilla sloping toward base of extension and not depressed 

 or excavated above base of extension; basal shallow furrows on under- 

 side of apex of scutelium not turning caudad medially but meeting 

 to form a continuous gently curved furrow, very rarely forming a 

 slight angle medially ; postmargmal vein relatively rather long, some- 

 times about as long as marginal vein. 



Abdomen: Posterior face as wide as or wider than long (in the males 

 frequently longer than wide) ; first tergite strongly transverse, smooth 

 or only weakly sculptured, its anterior margin usually more or less 



