Beebeomyia Curran, 1934

Hernández-Ortiz, V. & Aguirre, A., 2015, A new species of the Neotropical genus Beebeomyia (Diptera: Richardiidae) with observations of its biology on Dieffenbachia oerstedii (Araceae), Journal of Natural History 49, pp. 1-13 : 3-4

publication ID

https://doi.org/ 10.1080/00222933.2015.1005712

persistent identifier

https://treatment.plazi.org/id/E92C2A5E-A36A-A16B-C299-FB97FBC148A5

treatment provided by

Carolina

scientific name

Beebeomyia Curran, 1934
status

 

Genus Beebeomyia Curran, 1934  

Diagnosis

This genus belongs to the subfamily Richardiinae   and can be recognised by the following combination of characters: head little or no longer than high; frons twice as long as wide, ocellar triangle very long, the anterior ocellus near the middle of the frons, scarcely hollowed above; frons flat, level with eyes; basal antennal segment short, more or less hidden; one pair of frontal setae opposite the ocellar seta; postocellar setae extremely weak; outer vertical seta as strong as inner vertical seta. Thorax with middle portion of the propleura pubescent only; the following setae present: 1 postpronotal, 2 notopleural, 1 anepisternal, 0–1 presutural supra-alar; 1 postsutural supra-alar; 2 dorsocentral (except one pair in B. senilis   ); 1 postalar; 1 intra-postalar; acrostichal setae absent.

All femora moderately slender with spiny ventral setae on apical half, usually reduced or sometimes absent on the fore femur, always present on mid and hind legs; hind femur not more swollen than others; vein Sc ending near the apex of R 1; crossvein r-m slightly before or at middle of the discal cell; crossveins r-m and dmcu further apart than length of dm-cu; cell bcu rounded to apex; vein A 1 + CuA 2 reaching margin at least as a fold; R 2+3 straight, not undulate; male costa not expanded. First abdominal segment narrowed at base, the apical portion of abdomen oval.

Key to species of Beebeomyia   from the Neotropical region

1. Only one dorsocentral seta; thorax wholly black (including mesonotum and pleuron); wing with apical spot ( Peru) ....................................... B. senilis (Hennig) Two   dorsocentral setae, with anterior pair smaller; thorax reddish or black, pleuron sometimes with yellow markings ............................................................ 2

2. Mesoscutum largely black, postpronotal lobes yellow; pleura black with yellow stripe along hind margin of mesopleuron and extending to part of notopleuron; metapleural callus yellow; wing with large apical spot extending basal to middle of last section of vein M ( Brazil) ........................................ B. flavimaculata (Hennig) Mesoscutum   reddish or yellowish; wing with much smaller apical spot or none at all, otherwise differing ......................................................................................... 3

3. Presutural supra-alar seta present; costal and subcostal cells dark brown; foreleg yellow including coxa to tarsomeres; male with inner and outer surstyli elongated of similar length in lateral view; distiphallus broad, membranous, basally with two rows of long yellow setae forming two combs; phallus coiled with strong setae along basal third; female aculeus nearly two times as long as wide, apex yellow sclerotised, triangular, nearly as long as wide ( Mexico) ......................................... ................................................ B. tuxtlaensis Hernández-Ortiz & Aguirre   , sp. nov. Presutural supra-alar seta lacking; subcostal cells pale yellowish to hyaline ....... 4

4. Femora partly yellow, hind femur with brown distomedian ring; mid and hind tibiae brown; abdomen metallic blue with greenish sheen; mesonotum reddish; postpronotal lobe and posterior border of mesopleuron yellowish ( Peru) .............. ............................................................................................ B. calligastra (Hennig) Femora   wholly reddish yellow, tibiae and tarsi slightly paler; abdomen shinning black; mesonotum rusty reddish, with a broad, gently widening median whitish pollinose stripe, extending from the anterior margin to the scutellum; pleura and most of metanotum brown ( Guyana) ..................................... B. palposa (Cresson)