1905.] 



NATURAL SCIENCES OF PHILADELPHIA. 



423 



Dellia miniatula n. sp. 



Types : 6^ and 9 ; Carrillo, Costa Rica. [Hebard collection.] 

 Differing from D. insulana in the heavy cerci, the smaller general 

 tsize, the recurved apex of the male abdomen, and the general colora- 

 tion. 



Size small; form elongate, slightly compressed; surface polished, 

 clothed with numerous hairs. Head with the occiput considerably 

 inflated, descending to the extremely narrow interocular space; fas- 

 tigium short, wedge-shaped, the apex truncate, with a very slight longi- 

 tudinal sulcus, when viewed laterad the dorsal outline descends and 



Fig. 22. — DcUia miniatula n. sp. Lateral view of male type. 



rounds without any distinct angle in the regularly retreating face; no 

 distinct frontal costa; lateral ocelH placed on the supra-antennal mar- 

 gin of the fastigium, the median placed near the point at which the 

 fastigium blends into the face; eyes subovoid, very prominent and sub- 

 globose in the male, considerably elevated above the occiput, about 

 twice as long as the infra-ocular portion of the gena?, moderately promi- 

 nent and considerably inflated in the female, slightly less than twice as 

 long as the infra-ocular portion of the genae; antennae very slender, 

 filiform, about equal to the length of the body in the male, about 'equal 

 to the length of the abdomen in the female. Pronotum rounded, with- 

 out median or lateral carinae, metazona of male slightly and of female 

 distinctly punctate; cepnalic margin subarcuate, the median portion 

 slightly truncate; caudal margin with a broad, shallow angular emargi- 

 nation; transverse sulci four in number, very strongly impressed in 

 the male, weaker but distinct in the female, metazona about one-third 



