514 PROCEEDINGS OF THE NATIONAL MUSEUM vor. 105 



Holotype: a female (pinned), from Chaco, Paraguay (Fiebrig) ; in 

 Naturhistorisches Museum, Vienna, Austria. 



The holotype has both antennae broken at the tip, the right hind- 

 wing torn basally in tlie anal area, the left folded at the costal margin, 

 and the right mesothoracic leg broken at the tarsus. The abdomen 

 is in glycerin. 



According to Horn and Kahle (Ent. Beihefte aus Berlin-Dahlem, 

 vol. 2, 160 pp., 1935), Karl Fiebrig collected in Paraguay in the 

 years 1906-1909. 



Paratype: a female (pinned), same collecting data as holotype; 

 USNM. 



The paratype has the antennae broken beyond the basal segment, 

 the abdomen mashed terminally, but recognizable, the frons covered 

 with debris. The right wings are on a slide. 



The paratype differs from the holotype as follows: The left fore- 

 wing shows 2d r to R24-3 (instead of to Rs as in holotype), 3d r to 

 the R24-3 fork (instead of to R2 + 3), 2d m almost directly under 

 but slightly basad of 2d r-m (instead of slightly distad), 5 branches 

 of Cul (instead of 4) to margin; the right forewing similar to left 

 except 2d r to R2 + 3 fork, three branches of Cul to margin; forewing 

 length 5 mm., width 1.8 mm., hindwing length 4.3 mm., width 1.8 

 mm. The legs of the paratype show more extensive longitudinal 

 dark brown streaking, and the vertex has a transverse blackish band 

 behind the antennae, which may be superficial. 



The male is unknown. 



This species most closely resembles bimaculata through the oc- 

 currence of the transverse radiomedial streak coupled with 1st m 

 and cu also bordered, the antepterostigmal spot, and character of 

 genitalia. It differs in the less extensive radiomedial streak ob- 

 liquely directed distad along MA, which with the bordered cross- 

 veins gives the effect of a parenthesis, and the less extensive ante- 

 pterostigmal spot, both of which are distinct and broad anteriorly 

 and narrowed posteriorly in bimaculata. It also differs in the strongly 

 dotted setal spots, longitudinal intervenational streaks reminiscent 

 of chilena, and in the moderately elongate lateroventral halves of the 

 ninth tergite of the female in contrast to the considerably elongate 

 ones in bimaculata. 



This interesting species from the center of South America is named 

 in honor of Dr. Frank M. Carpenter, Professor of Entomology and 

 Alexander Agassiz Professor of Zoology, Harvard University, who 

 has made valuable contributions to the organization, knowledge, and 

 modernization of the taxonomy of the Nearctic Neuroptera. 



