Xystromutilla turrialba Casal, 1969

Cambra, Roberto A., Queiros, Caroline Nepomuceno, Deus, Jean P. Alves De, Williams, Kevin A., Bartholomay, Pedro R., Iantas, Jucelia, Nether, Michele C., Nishida, Kenji, Anino, Yostin J., Saavedra, Daisy & Buschini, Maria L. Tunes, 2021, Description of the male of Xystromutilla bucki Suarez, 1960 (Hymenoptera, Mutillidae), including new information on the biology of the genus, ZooKeys 1011, pp. 73-84 : 73

Xystromutilla turrialba Casal, 1969

Xystromutilla turrialba Casal, 1969, Physis 29: 47, holotype female, Turrialba, Costa Rica, USNM.

Material examined.

(81 specimens, MIUP): Panamá, Barro Colorado Island: iv.2001, 15 males; v.2001, 5 males; v.2002, 2 males; vi.2002, 5 males; vii.2002, 1 male; iii.2003, 14 males, 1 female; iv.2003, 27 males, 1 female; v.2003, 5 males; ii.2004, 2 males; iv.2004, 2 males; v.2004, 1 male.

Distribution.

Honduras, Nicaragua, Costa Rica, Panama ( Casal 1969; Cambra and Quintero 2004).

Seasonal and annual abundance.

A total of 81 specimens of Xystromutilla turrialba (79 males and 2 females) were captured over six continuous sampling years (2001-2006) with ten Malaise traps on Barro Colorado Island (BCI), Panama. The years with the greatest abundance of specimens were 2001 and 2003; samples were not captured during 2005 and 2006 (Fig. 9A ). Specimens of X. turrialba were captured only in the months from February to July, with greatest abundance from March to May with 71 (87.6%) specimens captured, peaking during April with 44 specimens (54.3%) (Fig. 9B ). The greater abundance of X. turrialba during April is similar to results found for Dasymutilla Ashmead, 1899 and Ephuta Say, 1836 ( Mutillidae ) species on BCI ( Cambra et al. 2018; Añino et al. 2020). The only two females of X. turrialba were captured in March and April, and their relatively small number compared to that of males on BCI is due to the sampling methodology, since females are apterous. The under-representation of females is not seen in hand-net and trap-nest samples from Panama, in which 14 females and 16 males of X. turrialba were captured during all months of the year except November ( Cambra and Quintero 1992, 2004).

Figures

Figure 9. A total Xystromutilla turrialba specimens captured by year (2001 - 2006) B total Xystromutilla turrialba specimens captured by month (2001 - 2006).