June, 1915.] Guatemalan Hemiptera-Heteroptera. 533 



Pappus breviceps n. sp. 



Approaching P. sordidiis Distant, but with the third and fourth antennal 

 segments very short. Length 4.5 mm. Width 1.25 mm. 



Head short, deflected; tylus prominent, polished black; eyes prominent. 

 Pronotum slightly constricted in front of the middle; with two elevated 

 lobes anteriorly, scarcely punctured; posterior portion coarsely punctate. 

 Scutellum minutely transversely rugulose-punctate. The clavus and corium 

 coarsely punctate. Posterior part of pronotum, scutellum, and hemelytra 

 with sparse, minute, decumbent hairs. Antenna with the first segment 

 enlarging at the apex, scarcely longer than the head; second segment mod- 

 erately thick, slender at base, and slightly incrassated towards apex, dis- 

 tinctly pilose, and three times as long as the first; third segment enlarging 

 at the apex, much shorter than the first; fourth segment inflated, subequal 

 to the third in length. 



Color. Antennae, eyes, and spot on the meta- and mesopleura black. 

 Head, pronotum, and corium ochraceous and shaded with fuscous. The 

 front of the head with about six transverse reddish arcs. Prothorax with a 

 transverse band before the middle, in the depression reddish-fuscous; a 

 submarginal band at base and extending forward on the sides fuscous. 

 Scutellum blackish at the sides, with a central obscure ochraceous stripe. 

 Membrane fuscous. Legs yellow; femora with a reddish-fuscous band near 

 the apex; an indistinct band beyond the middle of the tibise and the tarsi 

 fuscous. 



Described from a single example, taken at Los Amates, Guate- 

 mala, Feb. 18th, 1905. 



This species seems to be included in the genus Pappus as de- 

 scribed by Distant, but differs somewhat in the proportional 

 length of the antennal segments and in the shorter and more 

 rounded front of the head. 



Garganus albidivittis Stal. 



A large series from Guatemala: Santa Lucia, Feb. 2d; Maz- 

 atenango, Feb. 3d; Los Amates, Feb. ISth to 2Sth. Honduras; 

 San Pedro, Feb. 21st, 1905. 



Genus Isoproba gen. nov. • 



Head globose and connected to the prothorax by a narrow neck; face 

 strongly deflected. Antennae slightly setose; first segment shorter than 

 the head (about two-thirds as long); second segment slightly thickened, 

 four times as long as the first, or about equal to the third and fourth con- 

 joined. Rostrum reaching the intermediate coxae. Prothorax narrowed in 

 front and flaring behind; the posterior border concave; dorsal surface gib- 

 bous in front and with transverse depression behind the middle. The base 

 of the scutellum tumid. Elytra semitransparent and set with short hairs. 

 Type of genus — Isoproba picea. 



This genus can be separated readily from Paraproba Distant 

 and allied genera by the more globose head and the peculiar shape 

 of the prothorax. 



Isoproba picea n. sp. 



Head globose, slightly wider than long. Eyes not prominent, forming 

 part of the contour of the head; tylus slightly projecting, but strongly 

 deflected. Antenna with the first segment short, slender at base; second 

 segment enlarging slightly towards the apex; third and fourth segments 

 slender. 



