Mitrapsylla Crawford

Burckhardt, Daniel & Queiroz, Dalva L., 2020, Neotropical jumping plant-lice (Hemiptera, Psylloidea) associated with plants of the tribe Detarieae (Leguminosae, Detarioideae), Zootaxa 4733 (1), pp. 1-73 : 34-35

Mitrapsylla Crawford

Mitrapsylla Crawford, 1914: 134 ; Brown & Hodkinson, 1988: 61. Type species: Mitrapsylla albalineata Crawford , by original designation.

Description of adults by Brown & Hodkinson (1988).

Fifth instar immature ( Fig. 168 ). Body elongate, 1.3–1.9 times as long as wide, weakly sclerotised. Antenna 8 or 9-segmented, sometimes division between segments 8 and 9 incomplete; sparsely beset with setae which are not longer than diameter of flagellum; bearing a single subapical rhinarium on each of segments 3, 5, 7 and 8. Dorsal body surface sparsely covered in moderately long setae. Forewing pad about half to three quarters of antennal length, oval, lacking humeral lobes; margin with short and long normal and weakly or distinctly capitate setae; dorsum with normal ( Fig. 169 ) and/or indistinctly capitate setae ( Fig. 170 ). Margin of hindwing pad with moderately long, imperceptibly or distinctly capitate setae; lacking sectasetae. Legs long, with a few long, very weakly capitate setae on tibiae and many short and long setae; tarsal arolium long, twice as long as claws, subtrapezoidal, with unguitractor and pedicel ( Fig. 171 ). Abdomen suboval, broadly rounded terminally; caudal plate weakly sclerotised; abdominal margin with 4+4 truncate sectasetae which are grouped together, each on a small bump ( Figs 168, 172–174 ), positioned on either side of circumanal rings close to the outer ring. Anus in terminal position; outer circumanal ring relatively large, indented medially, more or less expanding laterally, mostly onto abdominal dorsum ( Figs 172–174 ), consisting, at least partially, of several rows of irregular, oval wax pores which are about twice as long as wide; extra pore fields absent.

Egg. About 0.2 mm long; oblong oval, about twice as long as wide; irregularly narrowing at apex which is subacute ( Fig. 26 ). Judging from the few eggs we have seen in the cleared abdomina of females, it appears that the eggs are soft-shelled and only weakly sclerotised.

Comments. Mitrapsylla contains 15 valid described species, for five of which there are host records. Four species are reported from faboid legumes and one from a caesalpinoid legume. Here we describe nine new species from Brazil which are associated with Copaifera (confirmed or likely). Mitrapsylla minuticonis Brown & Hodkinson , a species described from Panama, is morphologically similar and probably closely related to M. copaiferae sp. nov., suggesting that it develops also on Copaifera . The immatures of only five species are known. Adults and immatures of Mitrapsylla can be identified with keys provided below.

The description of immature ‘ Mitrapsylla deserata Caldwell’ and hence the concept of Mitrapsylla by White and Hodkinson (1985) probably concern Heteropsylla huasachae Caldwell and Martorell (cf. Burckhardt & Brown 1992).

Figures

FIGURES 168–174. Mitrapsylla spp., immatures; 168, habitus, in dorsal view; ss = sectasetae; 169, 170, forewing pad; 171, tarsal arolium; 172–174, right half of caudal plate; d = dorsal portion of outer circumanal ring, ss = sectasetae.—168, M. adusta sp. nov.; 169, 172, M. copaiferae sp. nov.; 170, 171, M. fumipennis sp. nov.; 173, M. gloriae sp. nov.; 174, M. repens sp. nov.—Scales 168 = 0.5 mm; 169, 170 = 0.1 mm; 171 = 0.03 mm; 172–174 = 0.1 mm.

FIGURES 22–26. Eggs of psyllids associated with Detarieae; 22, Apsyllopsis mexicana; 23, Colophorina guarani sp. nov.; 24, Platycorypha amazonica sp. nov.; 25, Jataiba uncigera sp. nov.; 26, Mitrapsylla sp.—Scales 0.2 mm; 24–26 = scale 26.