Laccophilus testudo Régimbart

Michat, Mariano C., 2008, Description of the larvae of three species of Laccophilus Leach and comments on the phylogenetic relationships of the Laccophilinae (Coleoptera: Dytiscidae), Zootaxa 1922, pp. 47-61 : 57

publication ID

https://doi.org/ 10.5281/zenodo.184741

DOI

https://doi.org/10.5281/zenodo.5628926

persistent identifier

https://treatment.plazi.org/id/03E1963D-FFD3-FF9B-FF1E-FC69101F94B2

treatment provided by

Plazi

scientific name

Laccophilus testudo Régimbart
status

 

Laccophilus testudo Régimbart ( Figs. 4 View FIGURES 1 – 4 , 7 View FIGURES 5 – 7 , 10, 16 View FIGURES 8 – 18 , 21 View FIGURES 19 – 21 , 23 View FIGURES 22 – 25 , Table 1 View TABLE 1 )

Distribution. This species is known from Brazil, and within Argentina from Catamarca, Córdoba, San Luis and Tucumán Provinces ( Trémouilles 1998).

Source of material. Eight specimens of instar I were used for the description. Larvae were collected in association with adults at the following locality: Argentina, Córdoba Province, Altas Cumbres road, Las Suelas River, 4 -I- 1992.

Diagnosis. Color of cephalic capsule as in Fig. 7 View FIGURES 5 – 7 (instar I). Head width = 0.50–0.52 mm (instar I) ( Table 1 View TABLE 1 ). Cephalic capsule subovate, with a faint neck constriction (instar I) ( Fig. 4 View FIGURES 1 – 4 ). Distal third of ventrointernal margin of MN without denticles (instar I). Legs more densely covered with minute slender spinulae (instar I). Seta AN 3 located ventrally (instar I) ( Fig. 10 View FIGURES 8 – 18 ). Setae MX 5 and MX 6 straight (instar I) ( Fig. 16 View FIGURES 8 – 18 ). Seta FE 5 elongate on meso- and metaFE (instar I) ( Fig. 21 View FIGURES 19 – 21 ). Seta AB 11 elongate (instar I) ( Fig. 23 View FIGURES 22 – 25 ). Measurements and ratios that characterize body shape are shown in Table 1 View TABLE 1 .

Description of color. Instar I. Cephalic capsule testaceous except for one large light brown macula centrally and one light brown macula laterally on each ocular area ( Fig. 7 View FIGURES 5 – 7 ); head appendages testaceous, MN slightly darker; thoracic and abdominal sclerites testaceous, eighth abdominal segment slightly darker; membranous parts white to testaceous; legs testaceous; U testaceous to light brown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Dytiscidae

Genus

Laccophilus