Colobostema Enderlein

Huerta, Heron, 2013, New species of the genus Colobostema Enderlein (Diptera: Scatopsidae) from Mexico, Zootaxa 3619 (2), pp. 183-194 : 194

publication ID

https://doi.org/ 10.11646/zootaxa.3619.2.6

publication LSID

lsid:zoobank.org:pub:842987A2-768D-4296-A2CD-9FCA8E8F76F1

DOI

https://doi.org/10.5281/zenodo.6162159

persistent identifier

https://treatment.plazi.org/id/03A5E76A-7140-0474-F1C7-FF03FA59BC86

treatment provided by

Plazi

scientific name

Colobostema Enderlein
status

 

Key to species of Colobostema Enderlein View in CoL View at ENA in the Neotropical Region (males only)

1.- Tergite 7 with subbasal constriction (Figs 4C, G, I)........................................................... 2

-. Tergite 7 without subbasal constriction (Figs. 4A, E).......................................................... 4

2(1). Tergite 7 asymmetrical (Fig. 4G); CuA1 incurved anteriorly at apex, ending before level of apex of costa ( Fig. 3 View FIGURE 3 E).......................................................................................... C. lupitae View in CoL (Mx, Oaxaca)

-. Tergite 7 symmetrical (Fig. 4C, I); CuA1 not curved at apex, extending beyond apex of costa ( Fig. 3 View FIGURE 3 B, 3F).............. 3

3(2). Tergite 9 rounded apically ( Fig. 7 View FIGURE 7 E); sternite 7 with deep posterior emargination (Fig. 4J); paramere ( Fig. 6 View FIGURE 6 E)............................................................................................ C. marlettae View in CoL (Mx, Yucatan)

-. Tergite 9 V-shaped, acute apically ( Fig. 7 View FIGURE 7 B); sternite 7 with a shallow posterior emargination (Fig. 4D); paramere ( Fig. 6 View FIGURE 6 B)........................................................................... C. marielae View in CoL (Mx, San Luis Potosi)

4(1). Paramere apically with short setae........................................................................ 5

-. Paramere apically with strong setae ( Fig. 6 View FIGURE 6 )................................................................. 6

5(4). Tergite 9 apically bilobed; paramere very small, not reaching the medial length of the gonocoxite............................................................................................ C. rotundum Cook View in CoL ( Panama, Tocumen)

-. Tergite 9 apically rounded; paramere similar in length of gonocoxite........ C. hoffmannae Huerta & Ibáñez View in CoL (Mx, Yucatan)

6(4). Gonocoxite modified along posterior margin (bilobed or with crenulations)........................................ 7

-. Gonocoxite not modified along posterior margin, simple and smooth............................................. 8

7(6). Paramere bearing long setae, as long as length of paramere ( Fig. 6 View FIGURE 6 C); gonocoxite with crenulations ( Fig. 5 View FIGURE 5 C); tergite 7 simple (Fig. 4E); wing with M fork constricted medially ( Fig. 3 View FIGURE 3 C)............................... C. valentinae View in CoL (Mx, Jalisco)

-. Paramere with setae much shorter than paramere; gonocoxite bilobed, without crenulations; tergite 7 posteriorly produced on each side, emarginated medially; wing with M fork not constricted..... C. arizonense Cook View in CoL (Nearctic, Mx, Baja California)

8(6). Tergite 9 elongated, extending beyond apex of gonocoxite ( Fig. 5 View FIGURE 5 A); CuA2 ends before level of apex of costa ( Fig. 3 View FIGURE 3 A).................................................................................... C. emilianoi View in CoL (Mx, Chiapas)

-. Tergite 9 short not extending beyond apex of gonocoxite; CuA2 extending beyond level of apex of costa................ 9

9(8). Tergite 7 with posterior emargination; CuA2 sigmoid............. C. variatum Cook View in CoL (Nearctic; Neotropical (Mx, Yucatan)

-. Tergite 7 broadly quadrangular, medially produced; CuA2 more acutely angled near middle.............................................................................. C. bijleveldi Haenni & Rapp View in CoL ( Belize, Shipstern Nature Reserve)

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Scatopsidae

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