title: Compared morphology of the immatures of males of two urban ant species of Camponotus.
abstract: The immatures of males of two species of Camponotus ants (Hymenoptera: Formicidae) are described and compared by light and electron microscopy. The numbers of larval instars were determined: Camponotus rufipes Fabricius (Hymenoptera: Formicidae) have four instars; and Camponotus vittatus Forel have three. Male larvae of the two species are similar to previously described Camponotus larvae, sharing the following traits: basic shape of body and mandible, presence of 'chiloscleres', 'praesaepium' (some specimens), labial pseudopalps, and ten pairs of spiracles. However, larvae of the two species can be separated by bodily dimensions and based on their hair number and types. Worker larvae of C. vittatus previously described are extensively similar to male larvae, with only a few inconspicuous differences that may result from intraspecific variation or sexual differences.
authors.affiliation: Centro de Estudos de lnsetos Sociais, lnstituto de Biociências, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil. entomo75@yahoo.com
authors.forename: Daniel Russ
authors.initials: DR
authors.lastname: Solis
authors.forename: Eduardo Gonçalves Paterson
authors.initials: EG
authors.lastname: Fox
authors.forename: Mônica Lanzoni
authors.initials: ML
authors.lastname: Rossi
authors.forename: Odair Correa
authors.initials: OC
authors.lastname: Bueno
mesh_terms: D000818:Animals; D001000:Ants / Q000145:classification / Q000254:growth & development / Q000648:ultrastructure*; D007814:Larva / Q000145:classification / Q000648:ultrastructure; D008297:Male; D010063:Ovum / Q000166:cytology; D011679:Pupa / Q000033:anatomy & histology; D012727:Sex Characteristics