Exomalopsis Spinola 1853
Creators: name: Rozen, Jerome G.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Exomalopsis

description: EXOMALOPSIS (EXOMALOPSIS) BRUESI COCKERELL
Figures 29–31
Following are the first exomalopsine pupae to be described and illustrated. Because the longest series of males and females are those of Exomalopsis bruesi, its pupae are described first; comparative pupal descriptions of other species follow.
FEMALE DESCRIPTION: Head: Integument without setae; most areas microscopically papillate giving integument slight milky, pale appearance. Vertex with pronounced tubercle associated with each lateral ocellus and smaller, but still large, tubercle over median ocellus; following cephalic areas with small blisterlike swellings that sometimes develop small, dark (almost black) spots, these swellings associated with points of contact with surrounding surface (spots possibly resulting from contact): pair on labral apex, one each on anterior apex of scape, on lateral ocellar tubercle; upper surface of compound eye with faint verrucae that may develop one or more dark spots.
Mesosoma: Integument in some areas papillate, without setae. Lateral angle of pronotum sharply projecting; posterior lobe of pronotum with small tubercle. Mesepisternum with linear swelling (accommodating dense adult setae) extending ventrally in front of midleg; mesoscutum with paramedian pair of conspicuous balloonlike (i.e., basally constricted) tubercles; axilla faintly swollen; mesoscutellum with conspicuous pair of paramedian, conical tubercles; metanotum pair of small paramedian tubercles. Tegula with faint varicosities, without tubercle; wings without tubercles but with a few irregular swellings. All coxae each with apical tubercle; all trochanters each with apical tubercle; fore- and midfemora each with basal tubercle; hind tibia (fig. 29) with large basitibial tubercle, tibia and basitarsus swollen, and apical tubercle (accommodating adult scopa) on outer surface elongate.
Metasoma: Integument covered in most areas with minute papillae that become minute spicules on subapical spines. T1–T5 each with subapical row of erect sharp-pointed tubercles, those of T1 moderately small but those of T3–T4 longer; those of T5 smaller; sublateral tubercles of each row tending to be most strongly developed; T6 with only a few fine sharp-pointed spines; metasomal apex with paramedian pair of large terminal tubercles (figs. 29, 31), each with darkly pigmented apical point. Sterna without tubercles; S2–S4 each extending posteriorly as flat lamella.
MALE DESCRIPTION: As described for female except for following: Dark contact spots on head tubercles far less common. Rear hind leg (fig. 30) more slender; apical tibial tubercles shorter. T1 with subapical spines fewer and smaller; spines on T2–T6 fewer than in female; T7 with subapical row of spines. Most of genital appendages exposed.
MATERIAL STUDIED: Twenty-one female and 10 male pupae: Peru: Lima Prov.: 8 km E Chosica, VI-23-95, VII-03-95 (J.G. Rozen, A. Ugarté).
description: Published as part of Rozen, Jerome G., 2011, Immatures of Exomalopsine Bees with Notes on Nesting Biology and a Tribal Key to Mature Larvae of Noncorbiculate, Nonparasitic Apinae (Hymenoptera: Apidae), pp. 1-52 in American Museum Novitates 2011 (3726) on pages 21-22, DOI: 10.1206/3726.2, http://zenodo.org/record/4565809