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een found in caves and mines in Yucatan. Two speciesof reduviids in Yucatan and Quintana Roo havebeen found to be vectors of Trypanosoma cruzi Chagas,the protozoan which is responsible for Chagasdisease (Gonzalez-Angulo and Ryckmen, 1967). Triatomadimidiata (Latreille) is known from caves inAlta Verapaz, Guatemala; Cayo District, Belize; andYucatan, Mexico. T. hegneri Mazzotti was collectedfrom a cave on EI Rancho Santa Rita, Quintana Roo.Lent and Wygodzinsky (1979) reported T. longipennisUsinger from a bat cave in Sinaloa. The mostinteresting group of reduviids inhabiting Mexicancaves are the thread-legged bugs of the subfamilyEmesinae. Wygodzinsky (1966) described Ploiariamaya from an unidentified cave in Yucatan. Thissmall-eyed species has been taken from cave wallsin total darkness in several additional caves in Yucatan.Immature emesines, some belonging to the genusPloiaria, have been found in caves in San Luis Potosiand Veracruz.Table 25.-Summary of cave inhabiting Homoptera.TroglobitesOther SpeciesAuchenorrhynchaCicadellidae 0 6Cixiidae 1 1Fulgoridae 0 1Kinnaridae 1 0Membracidae 0 1StemorrhynchaOrtheziidae 0 1Total 2 10Type-locaIity.-Cueva de Emilia, 14 km. NNWAhuacatlan, Queretaro, Mexico.Distribution.-Known only from the type-locality.See Fig. 75.Discussion.-This species has the eyes and ocelliabsent, has the tegmina and wings reduced, and ispale and poorly scierotized.Order HomopteraTwelve species of the order Homoptera have beenidentified from caves in Mexico. Although most homopteransare accidentals or trogloxenes, at leasttwo are troglobites (see Table 25).Family CicadellidaeLeafhoppers of the family Cicadellidae are occasionallycollected in the entrance area of caves. Balcluthasp., Empoasca sp., Hortensia similis (Walker),Planicephalus flavicosta (Stal), and Xestocephalussp. have all been found in the heavily vegetated entranceareas of caves in Yucatan. Gyponana germari(Stal) was taken at the bottom of the drop into S6­tano de las Golondrinas, San Luis Potosi.Family CixiidaeCixiid fulgoroids are not infrequently collectedfrom caves, and one described species is a troglobitein Mexico. Pearse (1938b) reported Cixius sp. fromActUn Gongora, Yucatan. An undetermined speciesof this genus has recently been collected from Cuevade los Camarones, Puebla. Undetermined cixiids, includingtwo probable troglobites, have been found incaves in Oaxaca, Puebla, Veracruz, and QuintanaRoo. The only other troglobitic cixiids are in the genusOliarus and are known from lava caves in Hawaii.Cixius orcus FennahCixius orcus Fennah, 1973:439,440-442, fig. 1-10.Family KinnaridaeOeclidius hades FennahOeclidius hades Fennah, 1973:439,442-444, fig. 11­17.Type-locaIity.-Cueva de Valdosa, 8 mi. E Valles,San Luis Potosi, Mexico.Distribution.-Known only from the type-locality.See Fig. 75.Discussion.-This is the only described troglobitein the family Kinnaridae. An apparent new speciesof troglobite is known from Cueva de la Mina, Tamaulipas,and a possible troglobite is known fromCueva Macinga, Veracruz. The eyes and ocelli in O.hades are absent, the body is pale yellowish brown,and the wings are reduced to scales.Order MegaIopteraFamily CorydalidaeThe large aquatic larvae of the dobsonfly Coryda­Ius sp. have been found in Guerrero (Sbordoni andArgano, 1972) and Veracruz. They are presumablyaccidentals.Order NeuropteraFamily MyrrneleontidaeAn antlion, Eremeleon longior Banks, was describedfrom caves in Yucatan (Banks, 1938). Adults216