15)12.] 



NATURAL SCIENCES OF PHILADELPHIA. 



203 



portions of head including palpi and also limbs very dark bistre. 

 Antenna? tawny-olive. The body is heavily scaled, above the great 

 majority of these scales are translucent wood-brown, the remainder 

 are translucent. Beneath the heavy scale covering is hoary-white. 



Distribution. — As the species is known from but one specimen, we 

 are only able to give one locality in the state of Oaxaca, Mexico, at 

 which it is found, and nothing is known of the habits of the insect. 



Specimens Examined. — 1 d". - 



Salina Cruz, Oaxaca, Mexico; December 22, 1898; 1 d\ (Type.) 

 [Hebard Collection.] 



Cryptoptilum oontectum 1 - n. sp. 



This insect shows the closest relationship to C. trigonipalpum 

 (vide infra), from which species it differs in the somewhat heavier 

 build, which, however, is not as heavy as in C. antiUarum. The 

 pronotum is proportionately more expansive both in length and width 

 in the male, and in fact considerably exceeds the broader species 

 antiUarum. The caudal femora are more strongly inflated, and in 

 this respect closely resemble antiUarum. In the female the pronotum 

 is wider, being in proportionate width 

 intermediate between trigonipalpum and 

 antiUarum, the subgenital plate differs 

 from all other species of the genus in 

 being apically keeled, and the ovipositor 

 is also very much shorter than in any of 

 the other forms. 



Type: c? ; Hayti. (P. R. Uhler.) 

 [Scudder Collection.] 



Description of Type. — Size small ; form 

 not as slender as C. trigonipalpum. 

 Head small, the interantennal space 

 roundly produced, divided vertically by 

 a distinct though minute sulcus. Max- 

 illary palpi as in trigonipalpum. Pro- 

 notum narrowing regularly cephalad, 

 very wide and considerably produced 

 caudad. Cerci of type missing. Cephalic face of cephalic tibiae 

 bearing a large, distinct, broadly ovoid tympanum. Hind femora 

 and armament of limbs as in C. antiUarum. 



Allotypic 9 . Data the same as the type. 



Fig. 10. — Cryptoptilum con- 

 ted um. Dorsal view of 

 type. (X 4.) 



32 In allusion to the expansive pronotum of the male of this species. 



