Anthidium hallinani

Taxonomy

Family: Megachilidae
Subfamily: Megachilinae
Tribe: Anthidiini
Genus: Anthidium Fabricius, 1804
Subgenus: A. (Anthidium) Fabricius, 1804
Species: Anthidium hallinani Schwarz, 1933
Common name: none

Overview

Anthidium (Anthidium) hallinani are primarily dark brown to black with yellow maculations and reddish-brown antennal flagellum, tegula, distal half of the femora, inner tibiae and tarsi, and sterna (Gonzalez and Griswold 2013). Females have white pubescence, except for brown to light ferruginous hairs on the vertex, pronotal lobe, dorsal area of the mesepisternum and metepisternum, propodeum, scutum, axilla, scutellum, inner tarsi, and S6. Females and males have a body length of 9.2–11.2 mm and 10.3–14.6 mm, respectively (Gonzalez and Griswold 2013).

Diagnostic characteristics

(modified from Gonzalez and Griswold 2013)

May be confused with

Anthidium hallinani may be confused with A. aztecum based on the dull and finely and densely punctate terga with elevated discal areas, the shape of female T6, and male genitalia and sterna (Gonzalez and Griswold 2013). Female A. hallinani can be differentiated from A. aztecum by the depressed apical rim on T6 only being visible medially and the presence of a short carina above the median emargination (Gonzalez and Griswold 2013). Male A. hallinani can be differentiated from A. aztecum by the broad, dense brush of reddish-brown hairs; the brush of A. aztecum is more pale-colored and sparse. Anthidium hallinani also has a less sharply projected lateral lobes of S6, a more truncate S6 apical margin medially, and a broader S8 apical process (Gonzalez and Griswold 2013).

Phenology

Anthidium hallinani adults have been recorded in flight from November to March; however, a single record was recorded in September. Peak activity occurs from the last half of January to the first half of February (Gonzalez and Griswold 2013).

Host associations

Anthidium hallinani have been observed visiting Stylosanthes guianensis (Fabaceae) and Hyptis sp. (Lamiaceae) (Gonzalez and Griswold 2013).

Nesting behavior

Nesting behavior is unknown.

Distribution

Anthidium hallinani occur in Costa Rica, Panama, and Chiapas, Southern Mexico. They are found primarily in the Chiapas Depression, dry forests in Central American and Panama, pine-oak forests in Central America, and moist forest habitats (Gonzalez and Griswold 2013). None are known to occur in the U.S. or Canada.


​Distribution map generated by Discover Life -- click on map for details, credits, and terms of use.

<p><em>Anthidium hallinani</em> female face, photo: Chelsey Ritner</p>
Anthidium hallinani female face, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> female lateral habitus, photo: Chelsey Ritner</p>
Anthidium hallinani female lateral habitus, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> female abdomen, photo: Chelsey Ritner</p>
Anthidium hallinani female abdomen, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> female, diagram showing the dorsal view of the sixth tergite (T6), diagram from Gonzalez and Griswold 2013</p>
Anthidium hallinani female, diagram showing the dorsal view of the sixth tergite (T6), diagram from Gonzalez and Griswold 2013
<p><em>Anthidium hallinani</em> male face, photo: Chelsey Ritner</p>
Anthidium hallinani male face, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> male lateral habitus, photo: Chelsey Ritner</p>
Anthidium hallinani male lateral habitus, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> male abdomen, photo: Chelsey Ritner</p>
Anthidium hallinani male abdomen, photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> male, ventral view of fourth sternum (S4), photo from Gonzalez and Griswold 2013</p>
Anthidium hallinani male, ventral view of fourth sternum (S4), photo from Gonzalez and Griswold 2013
<p><em>Anthidium hallinani</em> male, dorsal view of seventh tergum (T7), photo: Chelsey Ritner</p>
Anthidium hallinani male, dorsal view of seventh tergum (T7), photo: Chelsey Ritner
<p><em>Anthidium hallinani</em> male, diagram showing dorsal view of seventh tergum (T7), diagram from Gonzalez and Griswold 2013</p>
Anthidium hallinani male, diagram showing dorsal view of seventh tergum (T7), diagram from Gonzalez and Griswold 2013
<p><em>Anthidium hallinani</em> male, diagram showing ventral view of sixth sternum (S6), diagram from Gonzalez and Griswold 2013</p>
Anthidium hallinani male, diagram showing ventral view of sixth sternum (S6), diagram from Gonzalez and Griswold 2013
<p><em>Anthidium hallinani</em> male, diagram showing ventral view of seventh sternum (S7), diagram from Gonzalez and Griswold 2013</p>
Anthidium hallinani male, diagram showing ventral view of seventh sternum (S7), diagram from Gonzalez and Griswold 2013
<p><em>Anthidium hallinani</em> male, diagram showing ventral view of eighth sternum (S8), diagram from Gonzalez and Griswold 2013</p>
Anthidium hallinani male, diagram showing ventral view of eighth sternum (S8), diagram from Gonzalez and Griswold 2013