Lasiodera Gray, 1832

Opitz, Weston, 2019, Classification, Natural History, and Evolution of the Subfamily Peloniinae (Coleoptera: Cleroidea: Cleridae). Part XII. Taxonomic Revision of the South American Genus Lasiodera Gray, The Coleopterists Bulletin 73 (1), pp. 45-61 : 47-50

Lasiodera Gray, 1832

Lasiodera Gray 1832 : table 48, fig. 3. Lacordaire 1857: 479; Gahan 1910: 74; Schenkling 1910: 127; Blackwelder 1945: 389; Corporaal 1948: 249; Winkler 1961: 64; Ekis 1975: 52; Solervicens 2008: 593; Opitz 2010: 100, 2017: 63. See Corporaal (1950) for more historical citations.

Type Species. Clerus kirbyi Gray, 1832 , by monotypy.

Diagnosis. The minute ommatidia will distinguish the members of this genus from those of other New World genera of Peloniinae , except those of Chariessa Perty and Pichincha Opitz. In Pichincha specimens, the funicular antennomeres are expanded, which is not the case in the other two aforementioned genera. In Lasiodera specimens, each lateral pronotal margin has a distinct lateral tubercle, which is not the case in Chariessa specimens.

Apotypic Characteristics. Phallobasic lobes very large ( Fig. 10 ) and fimbriate, phallic apex bipartite, phallobasic rod bifurcated, one pair of male accessory glands.

Redescription. Size: Length 6.2–18.0 mm; width 1.4–6.0 mm. Form: Oblong, rectangular ( Figs. 41 , 45–47 ), body deep, about 3 times longer than broad. Vestiture: Dorsum profusely vested

with dark and light pubescence; antenna moderately setose. Head: Cranium subquadrate, frons wider than width of eye ( Fig. 2 ), profusely indented with small setiferous punctures; gula large, triangular, sutures converge, gula with 2 well-developed setose gular processes ( Figs. 3 , 30 ); labrum ( Fig. 7 ) very shallow, incised distally, tormal processes confluent, epipharyngeal plate small; mandibles ( Fig. 8 ) stout and elongated, anterior dens subacuminate, medial and posterior dens slightly developed, penicillus well-developed; maxilla ( Figs. 9 , 29 ) with welldeveloped laterolacinia, terminal palpomere securiform; labium ( Fig. 12 ) with deeply incised ligula, terminal palpomere securiform; eyes small, minutely facetted, ocular notch moderately sized; antenna ( Fig. 1 ) comprised of 11 antennomeres, capitate. Thorax: Pronotum quadrate (Figs, 6, 31), anterior limit of dorsolateral carina extending to, but not connected to, pronotal anterior margin, disc slightly convex, minutely punctate, lateral margins with welldeveloped lateral tubercle ( Figs. 6 , 31 ), prointercoxal process narrow ( Figs. 5 , 32 ), not expanded distally; pronotal projections long, acuminate, not approximating prointercoxal process; elytron profusely sculptured with small setiferous punctures, rarely with asetiferous punctures, epipleural fold narrowed, tapered to elytral apex, anterior elytral margin carinate; metathoracic wing as in Fig.16 , wedge cell closed; metendosternite ( Fig. 13 ) with furcal lamina, furcal anterior plate large triangular; profemora swollen, anterior margin with spines, tibial spur formula 1-2-1, tarsal pulvillar formula 3-3-3, unguis ( Figs. 33, 34 ) without basal denticle. Abdomen: Aedeagus ( Figs. 10, 11 ) with distal region of phallobase lobed, phallobasic lobes particularly large and conspicuously fimbriate, tegmen not reduced ventrally, phallobasic struts confluent with phallobasic apodeme, phallobasic rod bifurcated, phallic apex bipartite; spicular plates expanded posteriorly ( Fig. 14 ), spicular apodemes fused at posterior third; ovipositor shorter than abdomen, laminae tripartite, laminal rod not visible. Alimentary canal: Proventriculus well-developed ( Fig. 17 ); stomodeal valve ( Fig. 15 ) comprised of 4 primary lobes; ventricular crypts poorly developed; 4 cryptonephridial Malpighian tubules. Male mesodermal internal reproductive organs: One pair of accessory glands ( Fig. 18 ). Female mesodermal internal reproductive organs: Spermathecal capsule wellsclerotized; spermathecal gland attached to middle of capsule; saccular bursa copulatrix present ( Fig. 19 ).

Distribution. This genus is known from Brazil, Argentina, and Paraguay.

Figures

Figs. 7–16. Lasiodera rufipes. 7) Labrum; 8) Mandible; 9) Maxilla; 10) Tegmen; 11) Phallus; 12) Labium; 13) Metendosternite; 14) Spicular fork; 15) Proventricular valve; 16) Metathoracic wing.

Figs. 41–44. Possible Batesian mimicry. 41) Lasiodera kirbyi; 42) Enoclerus obliquevittis; 43) Haplomutilla spinosa (Mutillidae); 44) Ameris dufresnii (Curculionidae).

Figs. 45–47. Lasiodera species, habitus. 45) L. ruficollis; 46) L. rufipes; 47) L. trifasciata.

Figs. 1–6. Lasiodera rufipes. 1) Antenna; Head: 2) Frontal view; 3) Ventral view; 4) Dorsal view; 5) Prothorax, ventral view; 6) Pronotum, dorsal view.

Figs. 27–30. 27) Lasiodera rufipes, head; 28) Pelonium lampyroides Spinola, head; 29) L. rufipes, mouthparts;

Figs. 31–34. Lasiodera rufipes. 31) Pronotum; 32) Prothoracic venter; 33) Metatarsus; 34) Metatarsal ungues.

Figs. 17–19. Mesodermal structures of Lasiodera rufipes. 17) Alimentary canal; 18) Male reproductive organs;