THE JUMPING PLANT- LICE OR PSYLLID-E OF THE NEW WORLD. 135 



midway. Female. — Genital segment fully as long as rest of abdomen, 

 deflexed, acuminate; dorsal valve longer than ventral; pubescence 

 very sparse. 



Described from many males and females collected at Cbinandega, 

 Nicaragua, by C. F. Baker, San Marcos, Nicaragua (Baker), Acajutla, 

 Salvador (Baker), Acapulco, Mexico (Baker), and Oaxaca, Mexico 

 (Crawford). No biological data with these. 



Type in author's collection. 



The white markings are very conspicuous and constant in extent 

 and color. A few specimens present variations in color not worthy 

 of varietal names but deserving of mention. Two males, one from 

 Chinandega and the other from Granada, Nicaragua, have the 

 thoracic stripes a very dirty yellowish white and the cephalic stripes 

 almost wanting entirely. The four specimens from Oaxaca, Mexico, 

 are uniforml}^ darker in color, almost black, the wings deep yellow; 

 in two of them the stripes are almost wanting on the vertex and 

 yellowish on the thorax, while in the other two the stripes are white 

 and conspicuous and the eyes are whitish. The species seems to 

 be distributed very widely throughout the American tropics and 

 more extensive collections will probably complete the variation series 

 in color. The size and structure is quite constant throughout the 

 one hundred or more specimens before me. 



MITRAPSYLLA CUBANA, new species. 



Length of body, 2.1 mm.; length of forewing, 2.5. General color 

 light brown; prsescutum and scutum with light yellowish stripes 

 placed as in the preceding species. 



This species resembles quite closely the related species albalineata 

 in many respects, differing in the following characters: Body smaller 

 than in related species. Vertex with a deep sulcate depression 

 posteriorly between ocelli and median line, with the ridges along the 

 median line very prominent but not striped with white. Genal cones 

 similar. Pronotum without stripes, unicolored; pleurites of pro- 

 thorax longer and narrower. Wings small, hyaline, transparent, 

 not in the least fumate or yellow; venation more or less similar. 

 Genitalia similar except that the female genital segment is narrower 

 and more acuminate and not deflexed. 



Described from one female from Havana, Cuba (C. F. Baker). 



Type in author's collection. 



Genus PSYLLA Geoffroy. 

 Psylki Geoffroy 1762:482.— Scott '76:530.— Loew '78:600.— Froggatt '01:243. 

 Dorsum arched, usually strongly so; head broad, nearly as broad 

 as or. broader than thorax, more or less deflexed ; vertex usually 

 elevated at posterior ocelli. Genal cones always present, variable 

 in shape, more or less coniform and divergent, usually deflexed and 

 6060°— Bull. 85—14 10 



