44 U.S. NATIONAL MUSEUM BULLETEST 261 



Holotype male, Punta Gorda, British Honduras, September 1933 

 (J. J. White); an additional pair and a specimen with abdomen 

 missing, also from British Honduras (BM). This species is named in 

 honor of Dr. W. E. China, former Keeper of Insects in the British 

 Museum (Natural History), who assisted the writer in many ways 

 during the studies leading to this publication. 



This species is closely related to D. blantoni, new species, and to D. 

 schmidti Melichar, from both of which it can be separated by the 

 characters set forth in the keys and in the above description. 



Diestostemma huallagana, new species 

 Figure 10 



Length of male 15-16 mm.; of female 16.5-17.5 mm. Head with 

 median length of crown usually exceeding transocular width. Scutel- 

 lum not striate on posterior half. Male with styles not extending as 

 far posteriorly as connective, each with a slight anteapical point 

 on mesal margin; aedeagus short, fairly broad, with pair of apical 

 processes extending posterodorsally, nearly as long as shaft, ventral 

 margin with a rounded swelling at base which may or may not (type) 

 bear a few small processes. Female abdominal sternum VII with 

 posterior margin produced posteriorly in a convex lobe. Other 

 structural characters as in D. blantoni, new species. Crown, pronotum, 

 and scutellum dull yellow, pronotum with castaneous markings 

 arranged to delimit three small yellow spots near anterior margin 

 and a much larger yellow spot on disc; forewing opaque white with 

 a few variable linear black markings. 



Holotype male, Huallaga River Valley, altitude 500 m. (F. Woyt- 

 kowski), from NCS on indefinite loan to USNM; five topotypes of 

 both sexes (NCS). Additional specimens have been examined from 

 Tingo Maria, Cuzco, Puerto Maldonaldo, and Rio Santiago, Peru, 

 most of them from Tingo Maria. 



This species is closely related to D. albipenne (Fabricius) from which 

 it differs chiefly in the form of the aedeagus which has much longer 

 ventral processes arising beyond the midlength of the shaft. 



Diestostemma dubium, new species 

 Figure 9 



Length of male 18 mm. Head with median length of crown much 

 less than transocular width; ocelli each much closer to adjacent 

 anterior eye angle than to median line. Pronotum with a few small 



