70 NOTES ON JAMAICAN HEMIPTERA 



and two minute brown points between them on the apex of the 

 head. I have however in my collection specimens from Wash- 

 ington, D. C, and Florida that were determined by Prof. Ball 

 as his comata and agree with these Jamaican specimens in 

 every particular. Like the preceding species this was described 

 as a Deltocephalus but it seems to me that its affinities are with 

 Thamnotettix where I prefer to place it. In form and orna- 

 mentation these specimens agree almost exactly with colonus 

 Uhler, but they are much smaller and are sufficiently distinct 

 in their genital characters. The types of comata were from 

 Mexico. 



Thamnotettix rubicundula n. sp. 



Female: Form of placida Osborn, nearly, but much, smaller. Pale 

 yellowish tinged more or less strongly with sanguineous. Vertex short, a 

 little longer on the middle than next the eye, moderately sloping, the edge 

 well rounded to the base of the moderately broad front; clypeus narrow; 

 cheeks feebly angled below the eye. Sides of the pronotum short with a 

 thickened carina. Face, lower surface and tergum more deeply suffused 

 with sanguineous than above. Legs pale tinged with red, especially the 

 anterior pair. Tergum black on the disk. Last ventral segment with a 

 narrow but deep and rounded sinus the mouth of which is contracted by a 

 projecting tooth, either side of which the apical margin is feebly sinuated; 

 pygofers stout, scarcely exceeded by the oviduct. Elytra subhyaline, ner- 

 vures rather strong, pale sanguineous. Length 3^ mm. 



Described from one female example taken at Rock Fort 

 near Kingston March 25 th. This species is so distinct from 

 anything known to me that I do not hesitate to describe it 

 from a unique specimen. 



Thamnotettix fessula n. sp. 



Form of placida Osborn but much smaller with the vertex more pro- 

 duced. Clypeus slightly widened at apex; cheeks broad, prominently angled 

 below the eye, the edge beyond almost rectilinear, forming a broad margin 

 exterior to the small lorse. Last ventral segment of the female rather short, 

 the outer angles rounded either side of a rather broad median sinus, at the 

 center of which is a spatulate tooth similar to that found in clitellaria, but 

 shorter. 



Color fulvo-testaceous, somewhat paler on the vertex, scutellum, ely- 

 tral nervures and beneath; vertex with a slender median line at base and a 

 small oval spot just above each ocellus ferruginous; the facial incisures and 

 a series of arcs on either side of the front pale ferruginous. Eyes, claws 

 and oviduct blackish. Length 4 mm. 



Described from a single female specimen taken at Mande- 

 ville, April 3d. This species approaches CJilorotettix in some 

 of its characters. 



