Desmopachria

Miller, Kelly B., 2001, Descriptions Of New Species Of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae: Hyphydrini) With A Reassessment Of The Subgenera And Species Groups And A Synopsis Of The Species, The Coleopterists Bulletin 55 (2), pp. 219-240 : 231-232

Key to the Species Groups of Desmopachria

1. Anterior metatibial spine serrate ----------------------------------------------- D. vicina group

1'. Anterior metatibial spine not serrate --------------------------------------------------------------------- 2

2. Pronotum with basal striae ------------------------------------------------------ D. dispersa group

2'. Pronotum without basal striae --------------------------------------------------------------------------------- 3

3. Prosternal process sexually dimorphic, male process apically strongly forked, area between rami forming a deep pit, female process not as in male ---------------------------------------------------------------------------------------------- D. portmanni group

3'. Prosternal process not sexually dimorphic, not forked in either sex ------- 4

4. Elytron with a distinct sutural stria ------------------------------------------ D. striola group

4'. Elytron without a distinct sutural stria ----------------------------------------------------------------- 5

5. Anterior clypeal margin sexually dimorphic, in males strongly modified, thin, translucent and strongly up­turned, anteriorly beaded in female, but not as strongly modified as in male ------------------------------- D. ubangoides group

5'. Anterior clypeal margin not sexually dimorphic, anteriorly beaded in both sexes ---------------------------------------------------------------------------------------------------------------------------------- 6

6. Lateral lobes deeply bifid, apex divided into two long rami (e.g., Figs. 54– 55 ) ---------------------------------------------------------------------------------------------------------- D. nitida group

6'. Lateral lobes not deeply bifid ---------------------------------------------------------------------------------- 7

7. Lateral lobes with an anteapical, articulable process (e.g., Figs. 5, 7, 8, 10 ) ------------------------------------------------------------------------------------------------------------- D. convexa group

7'. Lateral lobes without an anteapical, articulable process ------------------------------- 8

8. Median and lateral lobes very strongly robust and heavily sclerotized (e.g., Figs. 11–13 ) ------------------------------------------------------------------------------- D. glabricula group

8'. Median and lateral lobes not strongly robust and sclerotized ------------------------ ------------------------------------------------------------------------------------------------------------ ungrouped species

Figures

Figs. 51–76. All male genitalia, median and lateral lobes, unless otherwise indicated. 51) D. darlingtoni; 52–55) D. draco; 52) median lobe, dorsal aspect; 53) median lobe, right lateral aspect; 54) Right lateral lobe, dorsal aspect; 55) right lateral lobe, right lateral aspect; 56–57) D. granoides; 56) median and lateral lobes; 57) same, lateral lobe, lateral aspect; 58–59) D. liosomata; 58) median and lateral lobes; 59) same, lateral lobe, lateral aspect; 60) D. margarita; 61–63) D. nitida; 61) median and lateral lobes; 62) same, apex of median lobe, lateral aspect; 63) same, lateral lobe, lateral aspect; 64) D. nitidoides; 65–67) D. psarammo; 65) median lobe and right lateral lobe, dorsal aspect; 66) same, median lobe and lateral lobe, right lateral aspect; 67) same, left elytron; 68– 72) D. rhea; 68) median lobe and right lateral lobe, dorsal aspect; 69) same, median lobe, ventral aspect; 70) same, median lobe, right lateral aspect; 71) same, right lateral lobe, right lateral aspect; 72) same, right lateral lobe, ventral aspect; 73–74) D. subnotata; 73) median and lateral lobes; 74) same, lateral lobe, lateral aspect; 75–76) D. zelota; 75) median and lateral lobes; 76) same, median and lateral lobes, lateral aspect.

Figs. 2–14. Desmopachria spp., male genitalia. 2–4) D. amyae; 2) median lobe and left lateral lobe, dorsal aspect; 3) same, median lobe, right lateral aspect; 4) same, right lateral lobe, right lateral aspect; 5–7) D. challeti; 5) median lobe and left lateral lobe, dorsal aspect; 6) same, median lobe, right lateral aspect; 7) same, left lateral lobe, left lateral aspect; 8–10) D. signatoides; 8) median lobe and left lateral lobe, dorsal aspect; 9) same, median lobe, right lateral aspect; 10) same, right lateral lobe, right lateral aspect; 11–13) D. volatidisca; 11) median lobe, dorsal aspect; 12) same, median lobe, right lateral aspect; 13) same, right lateral lobe, right lateral aspect; 14) Desmopachria signatoides, left antenna, dorsal aspect. bars = 0.1 mm