Euphoria diminuta Orozco, 2012

Orozco, Jesús, 2012, Monographic Revision of the American Genus Euphoria Burmeister, 1842 (Coleoptera: Scarabaeidae: Cetoniinae), The Coleopterists Bulletin (mo 11) 66, pp. 1-182 : 89-90

Euphoria diminuta Orozco , new species

(Appendix 4: Fig. 51 )

Type Material (23). Holotype male labeled “Tegucigalpa/ Hond// FJDyer/ Coll// n. sp#4/ det D. Carlson ” ( CMNC) and my red holotype label . Allotype female as holotype and with my yellow allotype label ( CMNC) . Paratypes (21) with the following data: as holotype (1 CMNC); “ Guatemala / G. Bernoiilly [?]// Museum Leiden/ verz F.T. Valc/ Lucassen// Euphoria / sp.// vu par/ Bourgoin/ 1930” (1 RMNH); “Hond// LWSaylor” (1 CASC); “Hond// LWSaylor// EUPHORIA / N. SP. #4/ Det Hardy” (1 CASC); “14892// 23-9-77/ Siguat. Hond.// J.V. Mankins/ collector// mankins// Dr. Alan R. Hardy/ 2005 donation to/ California Academy/ of Sciences” (1 CASC); “14892// 23-9-77/ Siguat. Hond.// J.V. Mankins/ collector// mankins// Euphoria . n. sp #4/ DET/ A. R. Hardy 1978// EUPHORIA / N. SP. #4/ Det Hardy// Dr. Alan R. Hardy/ 2005 donation to/ California Academy/ of Sciences” (1 CASC); “15967// TEGUS./ 8-10-77.// J.V.Mankins/ collector// mankins// Dr. Alan R. Hardy/ 2005 donation to/ California Academy/ of Sciences” (1 CASC); “Zaragoza/ Chimalté-nango,/ Guatemala / 24. III. 1976 / 2000 m. alt.//Museum Leiden/ coll P.J.J. H./ Kuijten” (2 RMNH); “Tegucigalpa/ Honduras / XI. 13. 17// F.J. Dyer. Coll / No. 30747// Ac. 24309// EUPHORIA / NV. SP./ DET. E.R.L.// AMNH ” (1 USNM); “Tegucigalpa/ Honduras / XI. 13. 17// F.J. Dyer. Col / No. 30747// Ac. 24309// EUPHORIA / SP.// SP. NOV.// EUPHORIA / N. SP. #4/ Det Hardy” (1 USNM); “Tegucigalpa/ Honduras / XI. 13. 17// F.J. Dyer. Coll / n. sp # 4/ det D. Carlson (1 CMNC); “ Tegucigalpa / Honduras / XI.14.17// F.J. Dyer, Col./ No. 30830// Ac 240309 (1 UNSM); “Tegucigalpa/ Honduras / X.30.1917// F.J. Dyer, Col./ No. 30251//Ac 240309 (1 UNSM); “Tegucigalpa/ Hond// FJDyer/ Coll” (1 JOAC, 1 UNSM, 1 USNM); “Tegucigalpa/ Hond// Nov./ 1517// FJDyer/ Coll” (1 USNM); “GUAT., Jutiapa/ 6-9-1979 / # 79-2318/ Coll. J. Schuster ” (1 USNM); “La Ceiba/ Honduras / Aug 10 ‘16// FJDyer/ Coll” (1 JOAC); “Tegucigalpa/ Honduras / X. 30. 1917 // F. J. Dyer Col. / No. 30250// 302416/ 30251/ Jose/ Chaparro./ 30282/ 30253/ 30284/ [illlegible]/ 30258/ [illegible]/ 30216/ [illegible]/ [illegible]/ 30257/ small/ [illegible]/ F. J. Dyer / [illegible]/ 09.30/ 1917” (1 USNM) .

Description. Holotype male. Length 8.5 mm width 5.0 mm. Color: Dorsal surface shiny. Pronotum black, elytra yellowish brown with black markings; markings sparse, irregular. Ventral surface, including legs, black to light brown, abdominal sternites light brown. Head: Frons moderately raised at middle, densely punctate; punctures round, deep, moderate, confluent laterally; densely setose; setae, yellowish, moderate and long. Clypeus densely punctate; punctures round, deep, strongly confluent; subrectangular, sides not raised; apex vaguely reflexed, moderately sinuate. Antennal club as long as stem. Pronotum: Surface densely punctate, anterior corners with abundant rugae; punctures round to lunulate, moderate; densely setose; setae moderate in size, yellowish. Base in front of scutellum impunctate, moderately emarginate. Scutellum glabrous. Elytra: Surface moderately densely punctate; punctures small and moderate in size; base and apex on sides strongly rugose. Striae with 2 rows of long grooves surrounding 2 rows of lunulate punctures bearing moderate to long setae. Pygidium: Surface concentrically striate; striae dense, mostly discontinuous on base, continuous at apex, moderately densely setose, setae short to long. Legs: Protibiae slender; apical and medial teeth closer to each other than to basal tooth. Meso- and metatibial carinae moderately developed. Metatibial spurs slender, apices sharp. Venter: Mesometasternal process wide, weakly compressed laterally, apex evenly rounded, extending anteriorly beyond level of mesocoxae. Mesepimera, metasternum, and metacoxae densely setose, setae as on legs; metepimera sparsely setose. Metasternum rugose, densely setose laterally, weakly punctate and setose at middle; median sulcus moderately impressed. Abdominal sternites with weakly impressed, longitudinal depression. Abdomen in lateral view moderately concave.

Allotype. Female. Similar to holotype except for the following: Length 9.9 mm; width 5.6 mm Head: Frons sparsely setose; setae short, yellowish, moderate to long. Clypeal apex not reflexed, weakly sinuate. Antennal club shorter than stem. Pronotum: Surface moderately densely setose, mostly glabrous at middle. Legs: Protibial teeth strongly worn down. Meso- and metatibial carinae strongly developed. Metatibial spurs lanceolate, apices rounded. Venter: Mesometasternal process extended to the same level as mesocoxae. Abdomen in lateral view strongly convex.

Variation. Paratypes (7 males, 7 females) similar to holotype and allotype except for the following: Length 7.6–11.4 mm; width 4.4–6.6 mm. Color: Base of pronotum black to yellowish. Black markings on elytra abundant to absent. Melanistic forms present. Head: Frons and clypeus glabrous to densely setose. Pronotum: Surface glabrous to densely setose. Elytra: Surface sparsely to densely setose. Male genitalia: Parameres as in Fig. 51c .

Diagnosis. Euphoria diminuta is separated from the other species in the group based on the antennal club as long as the stem in males and shorter in females, scutellum impunctate, weakly compressed mesometasternal process, and form of the parameres. Euphoria canaliculata , a related new species, is separated based on the subequal length of the antennal club in both sexes, scutellum impunctate, strongly compressed mesometasternal process, protarsi sexually dimorphic in length (longer than protibiae in males, shorter in females), and form of the parameres.

Natural History. This species was collected at 2,000 m.

Temporal Distribution. March (2), August (1), September (3), October (3), November (5) ( Fig. 51f ).

Geographic Distribution. Known from Guatemala and Honduras ( Fig. 51g ).

Etymology. From the Spanish “ diminuta ” meaning diminutive, referring to the reduced body size of the adult.

Figures

Fig. 51. Euphoria diminuta. a) Habitus of paratype, b) Head of paratype, c) Parameres of paratype, d-e) Color variation in paratypes, f) Temporal distribution, g) Geographic distribution in Guatemala and Honduras.