MORGAN HEBARD 75 



Ischnoptera inca Saussure and Zehntner (Plate I\', figure 12.) 

 1893. Ischnoptera inca Saussure and Zehntner, Biol. Cent. -Am., Orth., i, p. 38, pi. 

 iv, fig. 23. [Senahu, Vera Paz, Guatemala.] 



It is to be noted that material from Peru is included with the 

 original description, described as a \ariety. We here select Sen- 

 ahu, Guatemala, as the type locality for mca. Consequently, 

 should Peruvian material prove to be a distinct species, as is very 

 probable, it will require a different name. 



Rio Trinidad, Panama, VI, 4, 1912, (Busck), I 9. 

 Cabima, Pan., V, 29 and 30, 191 1, (Busck), 2o^. 



It is much to be regretted that the male genitalia were \irtually 

 undescribed, a brief and unsatisfactory description of the supra- 

 anal plate alone having been given. 



The sizejs either somewhat variable in this insect, or more than 

 one species of this type, with solidly black pronotum and antennae 

 yellowish beyond the proximal portion, is represented in material 

 before us. The material here recorded shows in tegminal length: 

 cf, 8.7 to 8.9; 9, 8.3 millimeters. A female from Costa Rica 

 shows for this dimension, 10.8; one from Nicaragua, 9.3 milli- 

 meters. 



Ischnoptera mirella new si)ecies (Plate IV, figure 13.) 



In the solidly dark pronotum and antennae this diminutive 

 insect agrees with /. crispula Rehn and /. castanea Saussure (the 

 male type of the former from Para, Brazil, and a male of the latter 

 species from Igarape-assu, Para, Brazil, are before us), while in 

 size and general colorati(jn further agreement with the latter spe- 

 cies is found. 



The male genitalia of the present species are, however, of a 

 remarkable type showing no affinity to any of the previously 

 described species of the genus. 



Type. — cf ; Porto Bello, Panama. April 17, 1912. (A. Busck.) 

 [United States National Museum.] 



Size small, form moderately slender as in castanea. Interocular space broad, 

 intermediate between the width between the ocelli and that between the antennal 

 sockets. Ocelli large and distinct, flattened surface of ocellar areas forming a 

 moderately sharp angle with the interocellar area. Maxillary palpi short; fifth 

 (distal) joint,slightly longer than third, which joint is slightly longer than the fourth. 



MEM. AM. ENT. SOC, 4. 



