Porrerus Navás, 1913

Miller, Robert B. & Stange, Lionel A., 2011, Antlions of Hispaniola (Neuroptera: Myrmeleontidae), Insecta Mundi 2011 (182), pp. 1-28 : 10

Porrerus Navás

Porrerus Navás 1913:14 . Type species: Porrerus famelicus Navás , by original designation and monotypy. = Grapa Navás 1932b: 55 (after Stange 1967: 61). Type species: Grapa dealbata Navás , by original

designation and monotypy.

Further description. Markl 1954:234 (as tribe).

Distribution. Brazil; Panama; Paraguay; Uruguay; Venezuela.

Diagnosis. Adult: body length about 20 to 34 mm, forewing length about 20 to 30mm. Interantennal distance less than 1.5 times longer than greatest scape diameter; distal tarsomere with ventral setae at least one-half length of tarsomere diameter; forewing with costal area not greatly expanded at stigma, at most one and one-half times wider than costal area above radial sector, without interconnected cross veins; hindwing with at least four presectoral crossveins; male ectoproct with postventral lobe.

Larva. Mandible with some setae on exterior margin as long or longer than greatest mandibular width; labial palpus shorter than basal width of mandible; head without dolichasters; mesothoracic spiracle not borne on tubercle; sternite VIII with pair of inconspicuous sclerotized submedian teeth near posterior margin.

Discussion. This genus has living representatives only in South America and Panama. The larvae are very close morphologically to those of Myrmeleon and are usually found under rock overhangs. The larvae can only move backwards. The adults differ from those of Myrmeleon by having longer ventral setae on the distal tarsomere and having a postventral lobe developed on the male ectoproct.