Triatoma jatai, Goncalves et al., 2013

Florêncio, Wilame Germano, Oliveira Meneguetti, Dionatas Ulises de, Ceretti Junior, Walter, Toledo Marrelli, Mauro, da Rosa, João Aristeu & de Oliveira, Jader, 2023, Triatoma jatai Gonçalves et al., 2013 (Hemiptera: Heteroptera: Reduviidae: Triatominae): new occurrence for the state of Ceará, Brazil, Revista Chilena de Entomología (Rev. Chil. Entomol.) 49 (2), pp. 227-230 : 228-229

T. jatai

collected in the state of Ceará ( Fig. 2 ).

Material examined. Brazil, Ceará, Salitre , locality Coqueiro , 22-IV-1998, 1 female (deposited in the Dr. José Maria Soares Barata Triatominae Collection ( CTJMSB) of the São Paulo State University Julio de Mesquita Filho, School of Pharmaceutical Sciences, Araraquara, São Paulo, Brazil) .

Morphological characteristics of T. jatai ( Fig. 1 ): It has a general brown coloration, and the females of the species are smaller in size compared to males. Other morphological aspects of T. jatai include brown legs, fore and mid femora with a couple of weak denticles subapically. The spongy fossa of the foreleg is absent in females. The hemelytra have a brown corium and clavus, and the membrane is gray with black veins. In females, the hemelytra are short, reaching the basal third or middle of the seventh urotergite. The connexivum is predominantly brown with clear triangular spots of variable width, located near the all basal intersegmental ( Gonçalves et al. 2013). The specimen examined presents all characteristics mentioned in the original description.

Another important character that confirmed species identy was the external female genital, which has the same format proposed by Teves et al. (2020). In dorsal view, it showed that the posterior edge of urotergite VII has a W-shape, with a lateral pair of depressions rising in the median region. In the ventral side, the line of the posterior edge of urosternite VIII is prominent in the median region, and the gonocoxites of the 8th segment are long and wide.

The discovery of another species of triatomine occurring in the State of Ceará demonstrates that the biodiversity of these insects may have been underestimated, and requires further investigation to be fully understood. Therefore, it is important to conduct more studies on the triatomine fauna and its distribution in the state.

Figures

Figures 1-2. 1. Triatoma jatai, female, dorsal view. Scale: 5.0 mm. 2. Map of distribution and new occurrence. / 1. Triatoma jatai, hembra adulta, vista dorsal. Escala: 5,0 mm. 2. Mapa de distribución conocida y nueva registro.