83 



ADDENDUM. 



2610 Heterocoiis Bakeri Ri'lm n. sp. 



"Type: Female; San Marcos, Nicaragua. Coll. C. F. Baker. Acau. 

 Nat. Sei. Phila. 



Allied to H SmUhianvn Saussnre but differing in the shape of the 

 pronotum, the much shorter tegmina and the fewer veins in the dorsal 

 field of the same. 



Size medium; form moderately robust. Head broad, the interocular 

 region distinctly flattened and consideraby deflected; vertex narrower 

 than the width of the basal joint of the antennae and bearing a slight 

 longitudinal sulcation; eye moderately prominent, pyriform in outline 

 and with the greatest width superior; palpi with the last joint expanded 

 and infundibuliforni, equal to the third joint in length; antennae rather 

 short, slightly exceeding the body in length. Pronotum slightly broader 

 than long, quadrate, anterior margin truncate, posterior very slightly 

 arcuate; lateral lobes shallow, the lower margin and angles rounded, 

 the posterior angle with an additional internal ridge. Tegmina consider- 

 ably shorter than the abdomen, apex evenly rounded; dorsal field with 

 six major and two accessory veins; lateral field with the mediastine vein 

 bearing eigth rami. Wings aborted. Cerci long, equal to the ovipositor 

 in lengh, rather stout, tapering. Ovipositor shorter than the posterior 

 femora, straight, narrow, the apex with the outer valves distinctly 

 denticulate, the inner valves very weakly denticulate. Limbs robust. 

 Anterior tibiae with the aperature of the tympanun sub-elliptical. 

 Median limbs slightly slenderer than the anterior pair. Posterior femora 

 robust, distal extremity not expanded; tibiae slightly shorter than the 

 femora, marginal spines five in number, the margins very distinctly 

 dentate, apical spurs long and slender; metatarsi about equal to the 

 last tarsal joint in length, and with the second tarsal joint dentate on thrt 

 superior margins. 



General color hazel, the abdomen umber; antennae with the two 

 basal joints and the apical half of the same general tint, the intermediate 

 portion black; margins of the pronotum and an obscure bar at the 

 margins of the disk blackish; tegmina wood-brown, the humeral vein 

 black; posterior tibiae with the proximal portion and that adjacent to 

 the base of each spur blackish. 



MEASUREMENTS. 



Total length 20. mm. 



Length of pronotum 3. mm. 



Width of pronotum 3.5 mm. 



Length of tegmina S. mm. 



Length of posterior femora. 9.2 mm. 



Length of ovipositor 0.8 mm. 



